{"id":176,"date":"2025-12-05T20:54:54","date_gmt":"2025-12-05T12:54:54","guid":{"rendered":"http:\/\/8.130.188.72\/index.php\/2025\/12\/05\/python%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b03\/"},"modified":"2025-12-19T19:09:05","modified_gmt":"2025-12-19T11:09:05","slug":"python%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b03","status":"publish","type":"post","link":"http:\/\/blog.huihuia24.top\/index.php\/2025\/12\/05\/python%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b03\/","title":{"rendered":"Python\u5b66\u4e60\u7b14\u8bb03"},"content":{"rendered":"

\u4e8c\u5341\u3001jQuery<\/code><\/h2>\njQuery<\/code>\u4e0b\u8f7d\u5730\u5740\uff1a<\/strong>\u70b9\u51fb\u6b64\u5904<\/a><\/p>\n \u4e0b\u8f7d\u6559\u7a0b\uff1a<\/strong>jQuery\u7684\u4e0b\u8f7d\u6559\u7a0b<\/a><\/p>\n 1.jQuery\u7684\u4ecb\u7ecd<\/h3>\njQuery \u5b9a\u4e49<\/h4>\njQuery \u662f\u5bf9 JavaScript \u7684\u5c01\u88c5\uff0c\u5b83\u662f\u514d\u8d39\u3001\u5f00\u6e90\u7684 Javascript \u51fd\u6570\u5e93\uff0cjQuery \u6781\u5927\u7b80\u5316\u4e86 Javascript \u7f16\u7a0b<\/p>\n jQuery \u4f5c\u7528<\/h4>\njQuery \u548c Javascript \u5b83\u4eec\u7684\u4f5c\u7528\u4e00\u6837\uff0c\u90fd\u662f\u8d1f\u8d23\u7f51\u9875\u884c\u4e3a\u64cd\u4f5c\uff0c\u589e\u52a0\u7f51\u9875\u548c\u7528\u6237\u7684\u4ea4\u4e92\u6548\u679c\u7684\uff0c\u53ea\u4e0d\u8fc7 jQuery \u7b80\u5316\u4e86Javascript \u7f16\u7a0b\uff0cjQuery \u5b9e\u73b0\u4ea4\u4e92\u6548\u679c\u66f4\u7b80\u5355<\/p>\njQuery \u4f18\u70b9<\/h4>\n\njQuery \u517c\u5bb9\u4e86\u73b0\u5728\u4e3b\u6d41\u7684\u6d4f\u89c8\u5668\uff0c\u589e\u52a0\u4e86\u7a0b\u5e8f\u5458\u7684\u5f00\u53d1\u6548\u7387<\/li>\njQuery \u7b80\u5316\u4e86 Javascript \u7f16\u7a0b\uff0c\u4ee3\u7801\u7f16\u5199\u66f4\u52a0\u7b80\u5355<\/li>\n<\/ul>\n2. jQuery\u7684\u7528\u6cd5<\/h3>\njQuery\u7684\u5f15\u5165<\/h4>\n<script src='.\/jquery-1.12.4.min.js'><\/script>\n<\/code><\/pre>\njQuery\u7684\u5165\u53e3\u51fd\u6570<\/h4>\nis\u83b7\u53d6\u6807\u7b7e\u5143\u7d20\uff0c\u9700\u8981\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u4ee5\u540e\u518d\u83b7\u53d6\uff0c\u6211\u4eec\u901a\u8fc7\u7ed9onload<\/code>\u4e8b\u4ef6\u5c5e\u6027\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u51fd\u6570\u6765\u83b7\u53d6\u6807\u7b7e\u5143\u7d20\uff0c\u800c jQuery \u63d0\u4f9b\u4e86ready<\/code>\u51fd\u6570\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4fdd\u8bc1\u83b7\u53d6\u6807\u7b7e\u5143\u7d20\u6ca1\u6709\u95ee\u9898\uff0c\u5b83\u7684\u901f\u5ea6\u6bd4\u539f\u751f\u7684window.onload<\/code>\u66f4\u5feb<\/strong>\u3002<\/p>\n \u5165\u53e3\u51fd\u6570\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n \n <script src='.\/jquery-1.12.4.min.js'><\/script>\n <script>\n \/\/ \u539f\u751fjs\u5199\u6cd5\n window.onload = function() {\n var oDiv = document.getElementById("div1");\n alert(oDiv);\n }\n \/\/ $\u5c31\u662fjQuery\u7684\u8c61\u5f81,$\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u4e2a\u51fd\u6570\u540d\u5c31\u53eb($)\n $(document).ready(function(){\n \/\/ \u4f7f\u7528jQuery\u65f6\uff0c\u53d8\u91cf\u540d\u90fd\u8981\u4ee5$\u5f00\u5934\uff0c\u8868\u793a\u8fd9\u662f\u4e00\u4e2ajQuery\u5bf9\u8c61\n var $div = $("#div1");\n alert($div);\n })\n <\/script>\n<\/head>\n<body>\n <div id="div1">\u9875\u9762\u6d4b\u8bd5<\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u6ce8\uff1a<\/font><\/strong>ready<\/code>\u7b49\u5f85\u9875\u9762\u6807\u7b7e\u52a0\u8f7d\u5b8c\u6210\u4ee5\u540e\u5c31\u6267\u884cready<\/code>\u4e8b\u4ef6\uff0c\u4e0d\u4f1a\u7b49\u5f85\u8d44\u6e90\u6570\u636e\u52a0\u8f7d\u5b8c\u6210<\/p>\n \u5165\u53e3\u51fd\u6570\u7b80\u5199\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n \n <script src='.\/jquery-1.12.4.min.js'><\/script>\n <script>\n $(function(){\n var $div = $("#div1");\n alert($div);\n })\n <\/script>\n<\/head>\n<body>\n <div id="div1">\u9875\u9762\u6d4b\u8bd5<\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n3. jQuery\u9009\u62e9\u5668<\/h3>\n jQuery\u9009\u62e9\u5668\u7684\u4ecb\u7ecd<\/h4>\njQuery\u9009\u62e9\u5668\u5c31\u662f\u5feb\u901f\u9009\u4e2d\u6807\u7b7e\u5143\u7d20\uff0c\u83b7\u53d6\u6807\u7b7e\u7684\uff0c\u9009\u62e9\u89c4\u5219\u548ccss\u6837\u5f0f\u4e00\u6837<\/p>\n jQuery\u9009\u62e9\u5668\u7684\u79cd\u7c7b<\/h4>\n\n\u6807\u7b7e\u9009\u62e9\u5668<\/li>\n \u7c7b\u9009\u62e9\u5668<\/li>\n id\u9009\u62e9\u5668<\/li>\n \u5c42\u7ea7\u9009\u62e9\u5668<\/li>\n \u5c5e\u6027\u9009\u62e9\u5668<\/li>\n<\/ol>\n\u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n \/\/ \u6807\u7b7e\u9009\u62e9\u5668\n var $p = $("p");\n alert($p.length);\n \/\/ \u901a\u8fc7jQuery\u8bbe\u7f6e\u6807\u7b7e\u6837\u5f0f\n $p.css("color","red");\n\n \/\/ \u7c7b\u9009\u62e9\u5668\n var $div1 = $(".div1");\n alert($div1.length);\n\n \/\/ id\u9009\u62e9\u5668\n var $div2 = $("#div2");\n alert($div2.length);\n\n \/\/ \u5c42\u7ea7\u9009\u62e9\u5668\n var $h1 = $("div h1");\n alert($h1.length);\n\n \/\/ \u5c5e\u6027\u9009\u62e9\u5668\n var $input = $("input[type='text']");\n alert($input.length);\n })\n <\/script>\n<\/head>\n<body>\n <p>\u54c8\u54c8\u54c8<\/p>\n <p>\u6d4b\u8bd5<\/p>\n <div class="div1">\u6211\u6ca1\u62db\u4e86<\/div>\n <div id="div2">\u6211\u6709\u62db\u4e86<\/div>\n <div>\n <h1>\n \u4f60\u597d\uff0cjQuery\n <\/h1>\n <\/div>\n\n <input type="text">\n <input type="button">\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u53ef\u4ee5\u4f7f\u7528length<\/code>\u5c5e\u6027\u6765\u5224\u65ad\u6807\u7b7e\u662f\u5426\u9009\u62e9\u6210\u529f\uff0c\u5982\u679clength<\/code>\u5927\u4e8e0\u8868\u793a\u6210\u529f\uff0c\u5426\u5219\u8868\u793a\u5931\u8d25<\/p>\n $(function(){\n result = $("#div1").length;\n alert(result);\n})\n<\/code><\/pre>\n4.\u9009\u62e9\u96c6\u8fc7\u6ee4<\/h3>\n \u9009\u62e9\u96c6\u8fc7\u6ee4\u7684\u4ecb\u7ecd<\/h4>\n\u9009\u62e9\u96c6\u8fc7\u6ee4\u5c31\u662f\u5728\u9009\u62e9\u6807\u7b7e\u7684\u96c6\u5408\u91cc\u9762\u8fc7\u6ee4\u81ea\u5df1\u9700\u8981\u7684\u6807\u7b7e<\/p>\n \u9009\u62e9\u96c6\u8fc7\u6ee4\u7684\u64cd\u4f5c<\/h4>\n\nhas(\u9009\u62e9\u5668\u540d\u79f0)<\/code>\uff1a\u8868\u793a\u9009\u53bb\u5305\u542b\u6307\u5b9a\u9009\u62e9\u5668\u7684\u6807\u7b7e<\/li>\n eq(\u7d22\u5f15)<\/code>\uff1a\u8868\u793a\u9009\u53bb\u6307\u5b9a\u7d22\u5f15\u7684\u6807\u7b7e<\/li>\n<\/ul>\n\u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n \/\/ has\u65b9\u6cd5\n var $divs = $('div').has('.box');\n $divs.css('border','2px solid blue');\n \/\/ eq\u65b9\u6cd5\n var $div = $('div').eq(1);\n $div.css('border','2px solid red');\n })\n <\/script>\n<\/head>\n<body>\n <div>\n <input type="text" class='box'>\n <\/div>\n <div>\n <input type="text">\n <input type="button" value="\u63d0\u4ea4">\n <\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n5.\u9009\u62e9\u96c6\u8f6c\u79fb<\/h3>\n \u9009\u62e9\u96c6\u8f6c\u79fb\u4ecb\u7ecd<\/h4>\n\u9009\u62e9\u96c6\u8f6c\u79fb\u5c31\u662f\u4ee5\u9009\u62e9\u7684\u6807\u7b7e\u4e3a\u53c2\u7167\uff0c\u7136\u540e\u83b7\u53d6\u8f6c\u79fb\u540e\u7684\u6807\u7b7e<\/p>\n \u9009\u62e9\u96c6\u8f6c\u79fb\u64cd\u4f5c<\/h4>\n\n$(\u2018#box\u2019).prev();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u4e0a\u4e00\u4e2a\u7684\u540c\u7ea7\u5143\u7d20<\/li>\n $(\u2018#box\u2019).prevAll();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u4e0a\u9762\u6240\u6709\u7684\u540c\u7ea7\u5143\u7d20<\/li>\n $(\u2018#box\u2019).next();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u4e0b\u4e00\u4e2a\u540c\u7ea7\u5143\u7d20<\/li>\n $(\u2018#box\u2019).nexrAll();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u7684box\u5143\u7d20\u7684\u4e0b\u9762\u6240\u6709\u7684\u540c\u7ea7\u5143\u7d20<\/li>\n $(\u2018#box\u2019).parent();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u7236\u5143\u7d20<\/li>\n $(\u2018#box\u2019).children();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u6240\u6709\u5b50\u5143\u7d20<\/li>\n $(\u2018#box\u2019).siblings();<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684\u5176\u4ed6\u540c\u7ea7\u5143\u7d20<\/li>\n $(\u2018#box\u2019).find(\u2018.myClass\u2019);<\/code>\uff1a\u8868\u793a\u9009\u62e9id\u662fbox\u5143\u7d20\u7684class\u7b49\u4e8emyClass<\/code>\u7684\u5143\u7d20<\/li>\n<\/ul>\n\u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n \n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n \/\/ prev\uff1a\u9009\u62e9\u540c\u7ea7\u4e0a\u4e00\u4e2a\n var $prev = $('#box1').prev();\n $prev.css({\n 'color':'red'\n });\n \/\/ prevAll\uff1a\u9009\u62e9\u540c\u7ea7\u4e0a\u65b9\u6240\u6709\n var $prevAll = $('#box1').prevAll();\n $prevAll.css({\n 'border':'2px solid blue'\n });\n \/\/ next\uff1a\u9009\u62e9\u540c\u7ea7\u4e0b\u4e00\u4e2a\n var $next = $('#box1').next();\n $next.css({\n 'backgroundColor':'yellow'\n });\n \/\/ nextAll\uff1a\u9009\u62e9\u540c\u7ea7\u4e0b\u65b9\u6240\u6709\n var $nextAll = $('#box1').nextAll();\n $nextAll.css({\n 'fontSize':'20px'\n });\n \/\/ parent\uff1a\u9009\u62e9\u7236\u5143\u7d20\n var $parent = $('.box2').parent();\n $parent.css({\n 'backgroundColor':'pink'\n });\n \/\/ children\uff1a\u9009\u62e9\u6240\u6709\u5b50\u5143\u7d20\n var $children = $('#box1').children();\n $children.css({\n 'color':'blue'\n });\n \/\/ siblings\uff1a\u9009\u62e9\u6240\u6709\u540c\u7ea7\u5143\u7d20\u4e0d\u5305\u62ec\u81ea\u5df1\n var $siblings = $('.box3').siblings();\n $siblings.css({\n 'fontSize':'24px'\n });\n \/\/ find\uff1a\u9009\u62e9box1\u7684\u6240\u6709\u540c\u7ea7\u5143\u7d20\u4e2dclass\u4e3abox2\u7684\u5143\u7d20\n var $find = $('#box1').find('.box2');\n $find.css({\n 'backgroundColor':'green'\n });\n });\n <\/script>\n<\/head>\n<body>\n <p>\u6ca1\u62db\u4e86<\/p>\n <h3>\u4e09\u7ea7\u6807\u9898<\/h3>\n <div id="box1">\n <div>\u7b2c\u4e00<\/div>\n <div class="box2">\u7b2c\u4e8c<\/div>\n <div class="box3">\u7b2c\u4e09<\/div>\n <div>\u7b2c\u56db<\/div>\n <div class="box2">\u7b2c\u4e94<\/div>\n <\/div>\n <a href="">\u767e\u5ea6<\/a>\n <h5>\u4e94\u7ea7\u6807\u9898<\/h5>\n<\/body>\n<\/html>\n<\/code><\/pre>\n6.\u83b7\u53d6\u548c\u8bbe\u7f6e\u5143\u7d20\u5185\u5bb9<\/h3>\n .html()<\/code>\u65b9\u6cd5\u7684\u4f7f\u7528<\/h4>\njQuery\u4e2d\u7684.html()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u548c\u8bbe\u7f6e\u6807\u7b7e\u7684HTML\u5185\u5bb9<\/p>\n \u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n var $div = $('div');\n \/\/ jQuery \u4fee\u6539 div \u7684\u5185\u5bb9\u4e3a Hello World\n $div.html('<a href="https:\/\/www.baidu.com">\u767e\u5ea6<\/a>');\n \/\/ \u62d3\u5c55\uff0c\u8ffd\u52a0\u5185\u5bb9\n $div.append('<span>\u4f60\u60f3\u5e72\u561b<\/span>')\n })\n <\/script>\n<\/head>\n<body>\n <div>\u54c8\u54c8<\/div>\n <p>\u6d4b\u8bd5\u9875\u9762<\/p>\n<\/body>\n<\/html>\n<\/code><\/pre>\n7.\u83b7\u53d6\u548c\u8bbe\u7f6e\u5143\u7d20\u5c5e\u6027<\/h3>\n prop<\/code>\u65b9\u6cd5\u4f7f\u7528<\/h4>\n\u4e4b\u524d\u4f7f\u7528css<\/code>\u65b9\u6cd5\u53ef\u4ee5\u7ed9\u6807\u7b7e\u8bbe\u7f6e\u6837\u5f0f\u5c5e\u6027\uff0c\u90a3\u4e48\u8bbe\u7f6e\u6807\u7b7e\u7684\u5176\u4ed6\u5c5e\u6027\u53ef\u4ee5\u4f7f\u7528prop<\/code>\u65b9\u6cd5\u4e86<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <style>\n .box {\n background: lightcoral;\n }\n <\/style>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n var $box = $('div');\n \/\/ \u83b7\u53d6\u6837\u5f0f\u5c5e\u6027\n var $boxsize = $box.css('font-size');\n alert($boxsize);\n \/\/ \u8bbe\u7f6e\u6837\u5f0f\u5c5e\u6027\n $box.prop({\n 'style': 'width: 200px; height: 200px; border: 5px solid black;',\n 'class': 'box'\n })\n \/\/ \u9664\u4e86\u6837\u5f0f\u5c5e\u6027\u7684\u76f8\u5173\u64cd\u4f5c\u4f7f\u7528css\u65b9\u6cd5\uff0c\u5176\u4ed6\u90fd\u4f7f\u7528prop\u65b9\u6cd5\n var $txt1 = $('#txt1');\n alert($txt1.prop('name'));\n \/\/ \u8bbe\u7f6e\u5c5e\u6027\n $txt1.prop({\n 'type':'button',\n 'value':'\u6309\u94ae'\n });\n\n \/\/ \u83b7\u53d6value\u5c5e\u6027\u53ef\u4ee5\u4f7f\u7528val\u65b9\u6cd5\n alert($txt1.val());\n \/\/ \u4f7f\u7528val\u65b9\u6cd5\u8bbe\u7f6evalue\u5c5e\u6027\n $txt1.val('\u63d0\u4ea4');\n })\n <\/script>\n<\/head>\n<body>\n <div>Test Box<\/div>\n <input type="text" name="username" id='txt1'>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u83b7\u53d6value<\/code>\u5c5e\u6027\u548c\u8bbe\u7f6evalue<\/code>\u5c5e\u6027\u8fd8\u53ef\u4ee5\u901a\u8fc7val<\/code>\u65b9\u6cd5\u6765\u5b8c\u6210<\/p>\n 8. jQuery\u4e8b\u4ef6<\/h3>\n\u5e38\u7528\u4e8b\u4ef6<\/h4>\n\nclick()<\/code>\uff1a\u5355\u51fb\u9f20\u6807<\/li>\n blur()<\/code>\uff1a\u5143\u7d20\u5931\u53bb\u7126\u70b9<\/li>\n focus()<\/code>\uff1a\u5143\u7d20\u83b7\u5f97\u7126\u70b9<\/li>\n mouseover()<\/code>\uff1a\u9f20\u6807\u8fdb\u5165(\u8fdb\u5165\u5b50\u5143\u7d20\u4e5f\u89e6\u53d1)<\/li>\n mouseout()<\/code>\uff1a\u9f20\u6807\u79bb\u5f00(\u79bb\u5f00\u5b50\u5143\u7d20\u4e5f\u89e6\u53d1)<\/li>\n ready()<\/code>\uff1aDOM\u52a0\u8f7d\u5b8c\u6210<\/li>\n<\/ul>\n<!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n var $lis = $('ul li');\n var $buttnon1 = $('#button1');\n var $text1 = $('#text1');\n var $box = $('.box')\n \/\/ \u70b9\u51fb\n $lis.click(function(){\n \/\/ \u539f\u751fjs\u5199\u6cd5\n \/\/ this.style.color = 'red';\n \/\/ jQuery\u5199\u6cd5\n $(this).css({\n 'color':'red'\n });\n \/\/ \u83b7\u53d6\u70b9\u51fb\u6807\u7b7e\u7684\u7d22\u5f15\n \/\/ alert($(this).index());\n });\n \/\/ \u70b9\u51fb\u63d0\u4ea4\u6309\u94ae\uff0c\u83b7\u53d6\u8f93\u5165\u6846\u7684\u503c\n $buttnon1.click(function(){\n alert($text1.val());\n });\n \/\/ \u7ed9\u8f93\u5165\u6846\u83b7\u5f97\u7126\u70b9\n $text1.focus(function(){\n \/\/ \u83b7\u53d6\u5f97\u5230\u7126\u70b9\u7684\u6587\u672c\u6846\uff0c\u7136\u540e\u8bbe\u7f6e\u6837\u5f0f\u5c5e\u6027\n $(this).css({\n 'background':'red'\n });\n });\n \/\/ \u8f93\u5165\u6846\u5931\u53bb\u7126\u70b9\n $text1.blur(function(){\n $(this).css({\n 'background':'white'\n });\n });\n \/\/ \u9f20\u6807\u8fdb\u5165\n $box.mouseover(function(){\n $(this).css({\n 'background':'red'\n });\n });\n \/\/ \u9f20\u6807\u79bb\u5f00\n $box.mouseout(function(){\n $(this).css({\n 'background':'black'\n });\n });\n });\n <\/script>\n<\/head>\n<body>\n <ul>\n <li>\u9999\u8549<\/li>\n <li>\u83e0\u841d<\/li>\n <li>\u54c8\u5bc6\u74dc<\/li>\n <\/ul>\n <input type="text" id="text1">\n <input type="button" id="button1" value="\u6309\u94ae">\n <div class="box" style="width: 200px;height:200px;background:black;"><\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n9.\u4e8b\u4ef6\u4ee3\u7406<\/h3>\n \u4e8b\u4ef6\u4ee3\u7406\u4ecb\u7ecd<\/h4>\n\u4e8b\u4ef6\u4ee3\u7406\u5c31\u662f\u5229\u7528\u4e8b\u4ef6\u5192\u6ce1\u7684\u539f\u7406(\u4e8b\u4ef6\u5192\u6ce1\u5c31\u662f\u4e8b\u4ef6\u4f1a\u5411\u5b83\u7684\u7236\u7ea7\u4e00\u7ea7\u4e00\u7ea7\u4f20\u9012)\uff0c\u628a\u4e8b\u4ef6\u52a0\u5230\u7236\u7ea7\u4e0a<\/strong>\uff0c\u901a\u8fc7\u5224\u65ad\u4e8b\u4ef6\u6765\u6e90\uff0c\u6267\u884c\u76f8\u5e94\u7684\u5b50\u5143\u7d20\u7684\u64cd\u4f5c\uff0c\u4e8b\u4ef6\u4ee3\u7406\u9996\u5148\u53ef\u4ee5\u6781\u5927\u51cf\u5c11\u4e8b\u4ef6\u7ed1\u5b9a\u6b21\u6570\uff0c\u63d0\u9ad8\u6027\u80fd;\u5176\u6b21\u53ef\u4ee5\u8ba9\u65b0\u52a0\u5165\u7684\u5b50\u5143\u7d20\u4e5f\u53ef\u4ee5\u62e5\u6709\u76f8\u540c\u7684\u64cd\u4f5c<\/strong>\u3002<\/p>\n \u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n \n <script>\n $(function(){\n \/\/ \u83b7\u53d6\u6807\u7b7e\n var $btn = $('#btn1');\n var $div = $('div');\n $btn.click(function(){\n alert('\u6211\u662f\u63d0\u4ea4');\n \/\/ \u6269\u5c55\uff1a\u53d6\u6d88\u4e8b\u4ef6\u5192\u6ce1\uff0c\u5c31\u662f\u4e0d\u8ba9\u4e8b\u4ef6\u5411\u7236\u63a7\u4ef6\u4f20\u9012\n \/\/ \u9ed8\u8ba4\u662f\u4e8b\u4ef6\u8fdb\u884c\u5192\u6ce1\n return false;\n });\n $div.click(function(){\n alert('\u6211\u662fdiv');\n });\n });\n <\/script>\n<\/head>\n<body>\n <div>\n <p id="p1">\u54c8\u54c8\u54c8<\/p>\n <input type="button" value="\u63d0\u4ea4" id="btn1">\n <\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u4e8b\u4ef6\u4ee3\u7406\u7684\u4f7f\u7528<\/h4>\ndelegate<\/code>\u65b9\u6cd5\u4f7f\u7528<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n $(function(){\n var $list = $('#list');\n var $box = $('.box');\n $list.delegate('li','click',function(){\n $(this).css({'color':'red'});\n });\n \/\/ \u6269\u5c55\uff1a\u53ef\u4ee5\u4ee3\u7406\u4e0d\u540c\u5b50\u63a7\u4ef6\u7684\u4e8b\u4ef6\n \/\/ \u53ef\u4ee5\u4ee3\u7406\u4e0d\u540c\u5b50\u63a7\u4ef6\u7684\u4e8b\u4ef6\uff0c\u591a\u4e2a\u9009\u62e9\u5668\u7528\u9017\u53f7\u9694\u5f00\u5373\u53ef\n $box.delegate('p,input','click',function(){\n $(this).css({'color':'red'});\n });\n });\n <\/script>\n<\/head>\n<body>\n <ul id="list">\n <li>\u7b2c\u4e00<\/li>\n <li>\u7b2c\u4e8c<\/li>\n <li>\u7b2c\u4e09<\/li>\n <li>\u7b2c\u56db<\/li>\n <\/ul>\n <div class="box">\n <p>\u54c8\u54c8\u54c8\u54c8<\/p>\n <input type="button" value="\u63d0\u4ea4">\n <\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n10.JavaScript\u5bf9\u8c61<\/h3>\n JavaScript\u5bf9\u8c61\u7684\u4ecb\u7ecd<\/h4>\nJavaScript \u4e2d\u7684\u6240\u6709\u4e8b\u7269\u90fd\u662f\u5bf9\u8c61\uff1a\u5b57\u7b26\u4e32\u3001\u6570\u503c\u3001\u6570\u7ec4\u3001\u51fd\u6570\u7b49\u90fd\u53ef\u4ee5\u8ba4\u4e3a\u662f\u5bf9\u8c61\uff0c\u6b64\u5916\uff0cJavaScript \u5141\u8bb8\u81ea\u5b9a\u4e49\u5bf9\u8c61\uff0c\u5bf9\u8c61\u53ef\u4ee5\u62e5\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n JavaScript\u521b\u5efa\u5bf9\u8c61\u64cd\u4f5c<\/h4>\n\u521b\u5efa\u5b9a\u4e49 JavaScript \u5bf9\u8c61\u6709\u4e24\u79cd\u65b9\u5f0f<\/p>\n \n\u901a\u8fc7\u9876\u7ea7 Object \u7c7b\u578b\u6765\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5bf9\u8c61<\/li>\n \u901a\u8fc7\u5bf9\u8c61\u5b57\u9762\u91cf\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61<\/li>\n<\/ul>\nObject \u7c7b\u521b\u5efa\u5bf9\u8c61\u793a\u4f8b\uff1a<\/p>\n var oPerson = new Object();\n\/\/ \u6dfb\u52a0\u5c5e\u6027\noPerson.name = '\u674e\u56db';\noPerson.age = 32;\n\n\/\/ \u6dfb\u52a0\u65b9\u6cd5\noPerson.show = function(){\n alert(oPerson.name + '\u662fgay\uff01');\n};\n\/\/ \u901a\u8fc7\u5bf9\u8c61\u83b7\u53d6\u5c5e\u6027\u548c\u8c03\u7528\u65b9\u6cd5\nalert(oPerson.name)\noPerson.show()\n<\/code><\/pre>\n\u5b57\u9762\u91cf\u521b\u5efa\u5bf9\u8c61\u793a\u4f8b\uff1a<\/p>\n var oStudent = {\n name:'\u674e\u56db',\n age:35,\n show:function(){\n alert(oStudent.name +'\u662f\u4e2agay\uff01');\n }\n};\n\/\/ \u8c03\u7528\nalert(oStudent.name+oStudent.age);\noStudent.show();\n<\/code><\/pre>\n11.json<\/h3>\n json\u7684\u4ecb\u7ecd<\/h4>\njson\u662f JavaScript Object Notation \u7684\u9996\u5b57\u6bcd\u7f29\u5199\uff0c\u7ffb\u8bd1\u8fc7\u6765\u5c31\u662f javascrip t\u5bf9\u8c61\u8868\u793a\u6cd5\uff0c\u8fd9\u91cc\u8bf4\u7684 json \u5c31\u662f\u7c7b\u4f3c\u4e8e javascript \u5bf9\u8c61\u7684\u5b57\u7b26\u4e32<\/strong>\uff0c\u5b83\u540c\u65f6\u662f\u4e00\u79cd\u6570\u636e\u683c\u5f0f<\/strong>\uff0c\u76ee\u524d\u8fd9\u79cd\u6570\u636e\u683c\u5f0f\u6bd4\u8f83\u6d41\u884c\uff0c\u9010\u6e10\u66ff\u6362\u6389\u4e86\u4f20\u7edf\u7684xml<\/code>\u6570\u636e\u683c\u5f0f\u3002<\/p>\n json\u7684\u683c\u5f0f<\/h4>\njson\u6709\u4e24\u79cd\u683c\u5f0f\uff1a<\/p>\n \n\n\u5bf9\u8c61\u683c\u5f0f<\/h5>\n\u5bf9\u8c61\u683c\u5f0f\u7684 json \u6570\u636e\uff0c\u4f7f\u7528\u4e00\u5bf9\u5927\u62ec\u53f7({}<\/code>)\uff0c\u5927\u62ec\u53f7\u91cc\u9762\u653e\u5165key:value<\/code>\u5f62\u5f0f\u7684\u952e\u503c\u5bf9\uff0c\u591a\u4e2a\u952e\u503c\u5bf9\u7528\u201c,<\/code>\u201d\u5206\u9694<\/p>\n {\n "name":"tom",\n "age":18\n}\n<\/code><\/pre>\n\u683c\u5f0f\u8bf4\u660e\uff1ajson \u4e2d\u7684(key)\u5c5e\u6027\u540d\u79f0\u548c\u5b57\u7b26\u4e32\u503c\u9700\u8981\u7528\u53cc\u5f15\u53f7<\/strong>\u5f15\u8d77\u6765\uff0c\u7528\u5355\u5f15\u53f7\u6216\u8005\u4e0d\u7528\u5f15\u53f7\uff0c\u4f1a\u5bfc\u81f4\u8bfb\u53d6\u6570\u636e\u9519\u8bef\u3002<\/p>\n<\/li>\n \n\u6570\u7ec4\u683c\u5f0f<\/h5>\n\u6570\u7ec4\u683c\u5f0f\u7684 json \u6570\u636e\uff0c\u4f7f\u7528\u4e00\u5bf9\u4e2d\u62ec\u53f7([]<\/code>)\uff0c\u4e2d\u62ec\u53f7\u91cc\u9762\u7684\u6570\u636e\u4f7f\u7528\u9017\u53f7\u5206\u9694\u3002<\/p>\n ["tom",18,"programmer"]\n<\/code><\/pre>\n<\/li>\n<\/ol>\n\u5b9e\u9645\u5f00\u53d1\u7684 json \u683c\u5f0f\u6bd4\u8f83\u590d\u6742\uff0c\u4f8b\u5982\uff1a<\/p>\n {\n "name":"tom",\n "age":18,\n "hobby":["reading","travel"]\n "school":{\n \t"name":'Merrimack College',\n \t"location":"Nort Andover,MA"\n\t}\n}\n<\/code><\/pre>\njson \u6570\u636e\u8f6c\u6362\u6210 JavaScript \u5bf9\u8c61<\/h4>\njson \u672c\u8d28\u4e0a\u662f\u5b57\u7b26\u4e32\uff0c\u5982\u679c\u5728 js \u4e2d\u64cd\u4f5c json \u6570\u636e\uff0c\u53ef\u4ee5\u5c06 json \u5b57\u7b26\u4e32\u8f6c\u5316\u4e3a JavaScript \u5bf9\u8c61<\/p>\n \u793a\u4f8b\uff1a<\/p>\n \/\/ \u5bf9\u8c61\u683c\u5f0f\u7684json\u6570\u636e\nvar sJson1 = '{"name":"\u674e\u56db","age":23}';\n\/\/ \u628ajson\u6570\u636e\u8f6c\u6210JavaScript\u5bf9\u8c61\nvar oJson = JSON.parse(sJson1);\nconsole.log(oJson);\n\/\/ \u83b7\u53d6\u5c5e\u6027\u6570\u636e\nconsole.log('\u6211\u53eb'+ oJson.name + '\uff0c\u4eca\u5e74'+ oJson.age+'\u5c81\uff01');\n\nvar sJson2 = '[{"name":"\u674e\u56db","age":23},{"name":"\u5f20\u4e09","age":25}]';\nvar oJson1 = JSON.parse(sJson2);\nvar aArrey = oJson1[1];\nconsole.log('\u6211\u53eb'+ aArrey.name + '\uff0c\u4eca\u5e74'+ aArrey.age+'\u5c81\uff01');\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font><\/p>\n \n\u670d\u52a1\u5668\u628a json \u6570\u636e\u7ed9\u6d4f\u89c8\u5668\uff0c\u5f53 js \u89e3\u6790\u6570\u636e\u7684\u65f6\u5019\u4e3a\u4e86\u65b9\u4fbf\uff0c\u628a json \u6570\u636e\u89e3\u6790\u6210\u4e00\u4e2a JavaScript \u5bf9\u8c61\n\n\u6269\u5c55\uff1a\u6d4f\u89c8\u5668\u7ed9Python\u670d\u52a1\u5668\u7684json\u6570\u636e\uff0cPython\u670d\u52a1\u5668\u7a0b\u5e8f\u53ef\u4ee5\u89e3\u6790\u6210\u5b57\u5178\u6216\u5217\u8868<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n12.ajax<\/h3>\n ajax\u7684\u4ecb\u7ecd<\/h4>\najax \u662f Asynchronous JavaScript and XML\u7684\u7b80\u5199\uff0cajax \u4e00\u4e2a\u524d\u540e\u53f0\u914d\u5408\u7684\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u8ba9 javascript \u53d1\u9001\u5f02\u6b65\u7684 http \u8bf7\u6c42\uff0c\u4e0e\u540e\u53f0\u901a\u4fe1\u8fdb\u884c\u6570\u636e\u7684\u83b7\u53d6<\/strong>\uff0cajax \u6700\u5927\u7684\u4f18\u70b9\u662f\u5b9e\u73b0\u5c40\u90e8\u5237\u65b0<\/strong>\uff0cajax 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<meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n \/\/ \u5411web\u670d\u52a1\u5668\u53d1\u9001ajax\u8bf7\u6c42\uff0c\u672c\u8d28\u4e0a\u662f\u4e00\u4e2ahttp\u534f\u8bae\u7684\u8bf7\u6c42\n $.ajax({\n \/\/ \u8bf7\u6c42\u7684\u8d44\u6e90\u5730\u5740\uff0c\u4e0d\u6307\u5b9aip\u5730\u5740\u548c\u7aef\u53e3\u53f7\uff0c\u8868\u793a\u8bf7\u6c42\u7684\u662f\u81ea\u5df1\u7684\u670d\u52a1\u5668\u8d44\u6e90\u6570\u636e\n url:"\u6d4b\u8bd5.json",\n \/\/ \u8bf7\u6c42\u65b9\u5f0f\n type:"GET",\n \/\/ \u6307\u5b9a\u5bf9\u670d\u52a1\u5668\u6570\u636e\u7684\u89e3\u6790\u683c\u5f0f\n dataType:'JSON',\n \/\/ data\uff1a\u8868\u793a\u53d1\u9001\u7ed9web\u670d\u52a1\u5668\u7684\u53c2\u6570\n data:{"name":"ls"},\n \/\/ \u8bf7\u6c42\u6210\u529f\u6267\u884c\u7684\u51fd\u6570\n success:function(data){\n console.log(data);\n \/\/ \u6570\u636e\u8bf7\u6c42\u56de\u6765\u4ee5\u540e\u53ef\u4ee5\u7ed1\u5b9a\u7ed9html\u4e2d\u7684\u67d0\u4e2a\u6807\u7b7e\u63a7\u4ef6\uff0c\u5b9e\u73b0\u5c40\u90e8\u5237\u65b0\n },\n \/\/ \u8bf7\u6c42\u5931\u8d25\u6267\u884c\u7684\u51fd\u6570\n error:function(){\n alert('\u8bf7\u6c42\u5931\u8d25');\n },\n \/\/ \u662f\u5426\u4f7f\u7528\u5f02\u6b65\uff0c\u9ed8\u8ba4\u4e0d\u6307\u5b9a\u8868\u793a\u7684\u662f\u5f02\u6b65\u8bf7\u6c42\n async:true\n });\n <\/script>\n<\/head>\n<body>\n \n<\/body>\n<\/html>\n<\/code><\/pre>\najax \u65b9\u6cd5\u7684\u53c2\u6570\u8bf4\u660e<\/p>\n \nurl<\/code>\uff1a\u8bf7\u6c42\u5730\u5740<\/li>\n type<\/code>\uff1a\u8bf7\u6c42\u65b9\u5f0f\uff0c\u9ed8\u8ba4\u662fGET<\/code>\uff0c\u5e38\u7528\u7684\u8fd8\u6709POST<\/code><\/li>\n dataType<\/code>\uff1a\u8bbe\u7f6e\u8fd4\u56de\u7684\u6570\u636e\u683c\u5f0f\uff0c\u5e38\u7528\u7684\u662fjson<\/code>\u683c\u5f0f<\/li>\n data<\/code>\uff1a\u8bbe\u7f6e\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u6570\u636e\uff0c\u6ca1\u6709\u53c2\u6570\u4e0d\u9700\u8981\u8bbe\u7f6e<\/li>\n success<\/code>\uff1a\u8bbe\u7f6e\u8bf7\u6c42\u6210\u529f\u540e\u56de\u8c03\u7684\u51fd\u6570<\/li>\n error<\/code>\uff1a\u8bbe\u7f6e\u8bf7\u6c42\u5931\u8d25\u540e\u56de\u8c03\u7684\u51fd\u6570<\/li>\n async<\/code>\uff1a\u8bbe\u7f6e\u662f\u5426\u5f02\u6b65\uff0c\u9ed8\u8ba4\u662ftrue<\/code>\uff0c\u8868\u793a\u5f02\u6b65\uff0c\u4e00\u822c\u4e0d\u7528\u5199<\/li>\n \u540c\u6b65\u548c\u5f02\u6b65\u8bf4\u660e\n\n\u540c\u6b65\u662f\u4e00\u4e2a ajax \u8bf7\u6c42\u5b8c\u6210\u53e6\u5916\u4e00\u4e2a\u624d\u53ef\u4ee5\u8bf7\u6c42\uff0c\u9700\u8981\u7b49\u5f85\u4e0a\u4e00\u4e2a ajax \u8bf7\u6c42\u5b8c\u6210\uff0c\u597d\u6bd4\u7ebf\u7a0b\u540c\u6b65<\/li>\n \u5f02\u6b65\u662f\u591a\u4e2a ajax \u540c\u65f6\u8bf7\u6c42\uff0c\u4e0d\u9700\u8981\u7b49\u5f85\u5176\u4ed6 ajax \u8bf7\u6c42\u5b8c\u6210\uff0c\u597d\u6bd4\u7ebf\u7a0b\u5f02\u6b65<\/li>\n<\/ul>\n<\/li>\n<\/ol>\najax \u7684\u7b80\u5199\u65b9\u5f0f\uff1a<\/p>\n $.ajax<\/code>\u6309\u7167\u8bf7\u6c42\u65b9\u5f0f\u53ef\u4ee5\u7b80\u5199\u6210$.get<\/code>\u6216\u8005$.post<\/code>\u65b9\u5f0f<\/p>\n \u793a\u4f8b\uff1a<\/p>\n <!DOCTYPE html>\n<html lang="en">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>Document<\/title>\n <script src=".\/jquery-1.12.4.min.js"><\/script>\n <script>\n \/\/ \u53d1\u9001GET\u65b9\u5f0f\u7684ajax\u8bf7\u6c42\u7684\u7b80\u5199\n \/\/ 1.\u8bf7\u6c42\u5730\u5740\n \/\/ 2.\u8bf7\u6c42\u4f20\u7ed9web\u670d\u52a1\u5668\u7684\u53c2\u6570\n \/\/ 3.\u8bf7\u6c42\u6210\u529f\u7684\u56de\u8c03\u53c2\u6570\n \/\/ 4.\u8fd4\u56de\u6570\u636e\u7684\u89e3\u6790\u65b9\u5f0f\n \/\/ 5.\u8bf7\u6c42\u5931\u8d25\u7684\u56de\u8c03\u53c2\u6570\n $.get('\u6d4b\u8bd5.json',{"name":"ls"},function(data){\n \/\/ 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<\/script>\n<\/head>\n<body>\n\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u4e8c\u5341\u4e00\u3001MySQL<\/code>\u6570\u636e\u5e93\u7684\u57fa\u672c\u4f7f\u7528<\/h2>\nNavicat\u4e0b\u8f7d\u5730\u5740\uff1a<\/strong>\u70b9\u51fb\u6b64\u5904<\/a><\/p>\n 1.\u6570\u636e\u5e93<\/h3>\n\u6570\u636e\u5e93\u7684\u4ecb\u7ecd<\/h4>\n\u6570\u636e\u5e93\u5c31\u662f\u50a8\u5b58\u548c\u7ba1\u7406\u6570\u636e\u7684\u4ed3\u5e93<\/strong>\uff0c\u6570\u636e\u6309\u7167\u4e00\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u50a8\u5b58\uff0c\u7528\u6237\u53ef\u4ee5\u5bf9\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u589e\u52a0\u3001\u4fee\u6539\u3001\u5220\u9664\u3001\u67e5\u8be2\u7b49\u64cd\u4f5c<\/p>\n 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\n\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93<\/h5>\n\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u53c8\u79f0NoSQL(Not Only SQL)\uff0c\u610f\u4e3a\u4e0d\u4ec5\u4ec5\u662fSQL\uff0c\u5bf9NoSQL\u6700\u666e\u904d\u7684\u5b9a\u4e49\u662f\u201d\u975e\u5173\u7cfb\u578b\u7684\u201c\uff0c\u5f3a\u8c03 Key-Values \u7684\u65b9\u5f0f\u5b58\u50a8\u6570\u636e<\/p>\n \u5e38\u7528\u7684\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93<\/strong><\/p>\n \nMongoDB<\/li>\n Redis<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\u6570\u636e\u5e93\u7684\u4f5c\u7528<\/h4>\n\u6570\u636e\u5e93\u7684\u4f5c\u7528\u5c31\u662f\u50a8\u5b58\u548c\u7ba1\u7406\u6570\u636e\u7684\uff0c\u6bd4\u5982\u6211\u4eec\u5728\u4eac\u4e1c\u7f51\u7ad9\u4e0a\u6d4f\u89c8\u7684\u5546\u54c1\u5217\u8868\u6570\u636e\uff0c\u8fd9\u4e9b\u6570\u636e\u90fd\u4f1a\u50a8\u5b58\u5728\u6570\u636e\u5e93<\/p>\n \u6570\u636e\u5e93\u7684\u7279\u70b9<\/h4>\n\n\u6301\u4e45\u5316\u5b58\u50a8<\/li>\n \u8bfb\u5199\u901f\u5ea6\u6781\u9ad8<\/li>\n \u4fdd\u8bc1\u6570\u636e\u7684\u6709\u6548\u6027<\/li>\n<\/ol>\n2.\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf<\/h3>\n \u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7684\u4ecb\u7ecd<\/h4>\n\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u662f\u4e3a\u7ba1\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u800c\u8bbe\u8ba1\u7684\u8f6f\u4ef6\u7cfb\u7edf\uff0c\u5982\u679c\u5927\u5bb6\u60f3\u4f7f\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5c31\u9700\u8981\u5b89\u88c5\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u5e94\u7528<\/strong><\/p>\n \u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u53ef\u4ee5\u5206\u4e3a<\/strong><\/p>\n \n\n\u5173\u7cfb\u578b\u6570\u636e\u5e93\u670d\u52a1\u7aef\u8f6f\u4ef6<\/p>\n \u4e3b\u8981\u8d1f\u8d23\u7ba1\u7406\u4e0d\u540c\u7684\u7684\u6570\u636e\u5e93\uff0c\u800c\u6bcf\u4e2a\u6570\u636e\u5e93\u91cc\u9762\u4f1a\u6709\u4e00\u7cfb\u5217\u6570\u636e\u6587\u4ef6\uff0c\u6570\u636e\u6587\u4ef6\u662f\u7528\u6765\u5b58\u50a8\u6570\u636e\u7684\uff0c\u5176\u5b9e\u6570\u636e\u5e93\u5c31\u662f\u4e00\u7cfb\u5217\u6570\u636e\u6587\u4ef6\u7684\u96c6\u5408<\/p>\n<\/li>\n \n\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u8f6f\u4ef6<\/p>\n \u4e3b\u8981\u8d1f\u8d23\u548c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u670d\u52a1\u7aef\u8f6f\u4ef6\u8fdb\u884c\u901a\u4fe1\uff0c\u5411\u670d\u52a1\u7aef\u4f20\u8f93\u6570\u636e\u6216\u8005\u4ece\u670d\u52a1\u7aef\u83b7\u53d6\u6570\u636e<\/p>\n<\/li>\n<\/ul>\n \u6ce8\uff1a<\/strong><\/font><\/p>\n \n\u7528\u6237\u64cd\u4f5c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5ba2\u6237\u7aef\uff0c\u5b9e\u73b0\u6570\u636e\u5e93\u76f8\u5173\u64cd\u4f5c<\/li>\n \u5173\u7cfb\u578b\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u501f\u52a9\u7f51\u7edc\u4f7f\u7528SQL\u8bed\u8a00\u548c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u8fdb\u884c\u6570\u636e\u901a\u4fe1<\/li>\n \u5173\u7cfb\u578b\u6570\u636e\u5e93\u670d\u52a1\u7aef\u7ba1\u7406\u8005\u4e0d\u540c\u7684\u6570\u636e\u5e93\uff0c\u6bcf\u4e2a\u6570\u636e\u5e93\u90fd\u4f1a\u6709\u4e00\u7cfb\u5217\u7684\u6570\u636e\u6587\u4ef6\uff0c\u6570\u636e\u90fd\u4fdd\u5b58\u5728\u6587\u4ef6\u91cc\u9762\uff0c\u6bcf\u4e2a\u6570\u636e\u5e93\u53ef\u4ee5\u7406\u89e3\u6210\u662f\u4e00\u4e2a\u6587\u4ef6\u5939<\/li>\n<\/ol>\nSQL\u7684\u4ecb\u7ecd<\/h4>\nSQL\u662f\u7ed3\u6784\u5316\u67e5\u8be2\u8bed\u8a00\uff0c\u662f\u4e00\u79cd\u7528\u6765\u64cd\u4f5cRDBMS\u7684\u6570\u636e\u5e93\u8bed\u8a00\uff0c\u4e5f\u5c31\u662f\u8bf4\u901a\u8fc7SQL\u53ef\u4ee5\u64cd\u4f5c Oracle\u3001sql server\u3001MySQL\u3001sqlite \u7b49\u5173\u7cfb\u578b\u6570\u636e\u5e93<\/p>\n SQL\u7684\u4f5c\u7528\u662f\u5b9e\u73b0\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1\uff0cSQL\u5c31\u662f\u901a\u4fe1\u7684\u6865\u6881<\/p>\n SQL\u8bed\u8a00\u4e3b\u8981\u5206\u4e3a\uff1a<\/strong><\/p>\n \nDQL\uff1a\u6570\u636e\u67e5\u8be2\u8bed\u8a00\uff0c\u7528\u4e8e\u5bf9\u6570\u636e\u8fdb\u884c\u67e5\u8be2\uff0c\u5982select<\/strong><\/li>\n DML\uff1a\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u589e\u52a0\u3001\u4fee\u6539\u3001\u5220\u9664\uff0c\u5982insert\u3001update\u3001delete<\/strong><\/li>\n TPL\uff1a\u4e8b\u7269\u5904\u7406\u8bed\u8a00\uff0c\u5bf9\u4e8b\u7269\u8fdb\u884c\u5904\u7406\uff0c\u5305\u62ec begin transaction\u3001commit\u3001rollback<\/li>\n DCL\uff1a\u6570\u636e\u63a7\u5236\u8bed\u8a00\uff0c\u8fdb\u884c\u6388\u6743\u4e0e\u56de\u6536\uff0c\u5982grant\u3001revoke<\/li>\n DDL\uff1a\u6570\u636e\u5b9a\u4e49\u8bed\u8a00\uff0c\u8fdb\u884c\u6570\u636e\u5e93\u3001\u8868\u7684\u7ba1\u7406\u7b49\u3002\u5982create\u3001drop<\/li>\n<\/ul>\n\u6ce8\uff1a<\/strong><\/font><\/p>\n \n\u5bf9\u4e8e\u7a0b\u5e8f\u5458\u6765\u8bf4\uff0c\u91cd\u70b9\u662f\u6570\u636e\u7684\u589e\u3001\u5220\u3001\u6539\u3001\u67e5<\/strong>\uff0c\u5fc5\u987b\u719f\u7ec3\u7f16\u5199DQL\u3001DML<\/strong>\uff0c\u80fd\u591f\u7f16\u5199DDL\u5b8c\u6210\u6570\u636e\u5e93\u3001\u8868\u7684\u64cd\u4f5c\uff0c\u5176\u4ed6\u64cd\u4f5c\u5982TPL\u3001DCL\u4e86\u89e3\u5373\u53ef<\/li>\n SQL\u8bed\u8a00\u4e0d\u533a\u5206\u5927\u5c0f\u5199<\/li>\n<\/ul>\n3.MySQL\u6570\u636e\u5e93<\/h3>\nMySQL\u662f\u4e00\u4e2a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5728WEB \u5e94\u7528\u65b9\u9762\uff0cMySQL\u662f\u6700\u597d\u7684 RDBMS(Relational DatabaseManagement System\uff0c\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf)\u5e94\u7528\u8f6f\u4ef6\uff0c\u5b83\u662f\u7531\u745e\u5178MVSQL AB \u516c\u53f8\u5f00\u53d1\uff0c\u76ee\u524d\u5c5e\u4e8eOracle \u65d7\u4e0b\u4ea7\u54c1\uff0cMySQL\u662f\u6700\u6d41\u884c\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u3002<\/p>\n MySQL\u6570\u636e\u5e93\u7684\u4ecb\u7ecd<\/h4>\nMySQL\u7684\u7279\u70b9<\/strong><\/p>\n \nMySQL\u662f\u5f00\u6e90\u7684\uff0c\u6240\u4ee5\u4f60\u4e0d\u9700\u8981\u652f\u4ed8\u989d\u5916\u7684\u8d39\u7528<\/li>\n MySQL\u652f\u6301\u5927\u578b\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u5904\u7406\u62e5\u6709\u6210\u5343\u4e0a\u4e07\u6761\u8bb0\u5f55\u7684\u5927\u578b\u6570\u636e\u5e93<\/li>\n MySQL\u4f7f\u7528\u6807\u51c6\u7684SQL\u6570\u636e\u8bed\u8a00\u5f62\u5f0f<\/li>\n MySQL\u53ef\u4ee5\u5b89\u88c5\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5e76\u4e14\u63d0\u4f9b\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\u7684\u64cd\u4f5c\u63a5\u53e3\uff0c\u8fd9\u4e9b\u7f16\u7a0b\u8bed\u8a00\u5305\u62ecC\u3001C++\u3001Python\u3001Java\u3001Ruby\u7b49\u7b49<\/li>\n<\/ol>\nMySQL\u6570\u636e\u5e93\u7684\u5b89\u88c5<\/h4>\n\n\nMySQL\u6570\u636e\u5e93\u670d\u52a1\u7aef\u8f6f\u4ef6\u7684\u5b89\u88c5<\/h5>\n\u5728Ubuntu\u4e2d\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n sudo apt-get install mysql-server\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u76ee\u524d\u5927\u5bb6\u4f7f\u7528\u7684Ubuntu\u4e2d\u5df2\u7ecf\u5b89\u88c5\u597d\u4e86MySQL\u670d\u52a1\u7aef\u8f6f\u4ef6\uff0c\u65e0\u9700\u518d\u5b89\u88c5<\/p>\n ps\u8bf4\u660e\uff1a<\/strong><\/p>\n \nps <\/code>\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u4e2d\u7684\u8fdb\u7a0b<\/li>\n -a<\/code>\u8868\u793a\u6240\u6709\u7528\u6237\u540d<\/li>\n -u<\/code>\u8868\u793a\u663e\u793a\u7528\u6237\u540d<\/li>\n -x<\/code>\u8868\u793a\u663e\u793a\u6240\u6709\u6267\u884c\u7684\u7a0b\u5e8f<\/li>\n<\/ul>\n\u67e5\u770bMySQL\u670d\u52a1\u72b6\u6001<\/p>\n sudo service mysql status\n<\/code><\/pre>\n\u5173\u95edMySQL\u670d\u52a1<\/p>\n sudo service mysql stop\n<\/code><\/pre>\n\u5f00\u542fMySQL\u670d\u52a1<\/p>\n sudo service mysql start\n<\/code><\/pre>\n\u91cd\u542fMySQL<\/p>\n sudo service mysql restart\n<\/code><\/pre>\nMySQL\u914d\u7f6e\u6587\u4ef6\u7684\u4ecb\u7ecd\uff1a<\/strong><\/p>\n \u914d\u7f6e\u6587\u4ef6\u8def\u5f84\u4e3a\uff1a\/etc\/mysql\/mysql.conf.d\/mysqld.cnf<\/code><\/p>\n \u4e3b\u8981\u914d\u7f6e\u4fe1\u606f\u8bf4\u660e\uff1a<\/strong><\/p>\n \nport<\/code>\u8868\u793a\u7aef\u53e3\u53f7\uff0c\u9ed8\u8ba4\u4e3a3306<\/li>\n bind-address<\/code>\u8868\u793a\u670d\u52a1\u5668\u7ed1\u5b9a\u7684ip\uff0c\u9ed8\u8ba4\u662f127.0.0.1<\/li>\n datadir<\/code>\u8868\u793a\u6570\u636e\u5e93\u4fdd\u5b58\u8def\u5f84\uff0c\u9ed8\u8ba4\u4e3a\/var\/bin\/mysql<\/code>\n\n.frm<\/code>\uff1a\u6570\u636e\u8868\uff0c\u8868\u7ed3\u6784\u6587\u4ef6<\/li>\n .ibd<\/code>\uff1a\u6570\u636e\u5b58\u653e\u7684\u6587\u4ef6<\/li>\n<\/ul>\n<\/li>\n log_error<\/code>\u8868\u793a\u9519\u8bef\u65e5\u5fd7\uff0c\u9ed8\u8ba4\u4e3a\/var\/log\/mysql\/error.log<\/code><\/li>\n<\/ul>\n\u6ce8\uff1a<\/strong><\/font>\u5982\u679c\u5bf9\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\uff0c\u9700\u8981\u91cd\u542fMySQL\u6570\u636e\u5e93\u670d\u52a1<\/p>\n<\/li>\n \nMySQL\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u8f6f\u4ef6\u7684\u5b89\u88c5<\/h5>\n\u5ba2\u6237\u7aef\u662f\u7a0b\u5e8f\u5458\u6216\u8005dba\u4f7f\u7528\u7684\u8f6f\u4ef6\uff0c\u901a\u8fc7 socket \u65b9\u5f0f\u4e0e\u670d\u52a1\u7aef\u7a0b\u5e8f\u901a\u4fe1<\/p>\n \u5e38\u7528\u7684MySQL\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u8f6f\u4ef6\u6709\uff1a<\/p>\n \n\n\u56fe\u5f62\u5316\u754c\u9762\u5ba2\u6237\u7aef Navicat<\/p>\n<\/li>\n \n\u547d\u4ee4\u884c\u5ba2\u6237\u7aef mysql<\/p>\n \u5b89\u88c5\u65b9\u5f0f<\/strong><\/p>\n \u5728Ubuntu\u4e2d\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n sudo apt-get install mysql-client\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \n\u76ee\u524d\u5927\u5bb6\u4f7f\u7528\u7684Ubuntu\u4e2d\u5df2\u7ecf\u5b89\u88c5\u597d\u4e86MySQL\u547d\u4ee4\u884c\u5ba2\u6237\u7aef\u8f6f\u4ef6\uff0c\u65e0\u9700\u518d\u6b21\u5b89\u88c5<\/li>\n<\/ul>\nMySQL\u547d\u4ee4\u7684\u4f7f\u7528\u5e2e\u52a9\uff1a<\/strong><\/p>\n mysql --help\n<\/code><\/pre>\nMySQL\u5ba2\u6237\u7aef\u8fde\u63a5MySQL\u670d\u52a1\u7aef\u547d\u4ee4<\/strong><\/p>\n mysql -uroot -p\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \n-u<\/code>\u8868\u793aMySQL\u670d\u52a1\u7aef\u7684\u7528\u6237\u540d<\/li>\n -p<\/code>\u8868\u793aMySQL\u670d\u52a1\u7aef\u7684\u5bc6\u7801<\/li>\n quit<\/code>\u6216\u8005exit<\/code>\u6216\u8005ctrl+d<\/code>\u8868\u793a\u9000\u51fa<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n4.\u6570\u636e\u7c7b\u578b\u548c\u7ea6\u675f<\/h3>\n \u6570\u636e\u7c7b\u578b<\/h4>\n\u6570\u636e\u7c7b\u578b\u662f\u6307\u5728\u521b\u5efa\u8868\u7684\u65f6\u5019\u4e3a\u8868\u4e2d\u5b57\u6bb5\u6307\u5b9a\u6570\u636e\u7c7b\u578b\uff0c\u53ea\u6709\u6570\u636e\u7b26\u5408\u7c7b\u578b\u8981\u6c42\u624d\u80fd\u5b58\u50a8\u8d77\u6765\uff0c\u4f7f\u7528\u6570\u636e\u7c7b\u578b\u7684\u539f\u5219\u662f:\u591f\u7528\u5c31\u884c\uff0c\u5c3d\u91cf\u4f7f\u7528\u53d6\u503c\u8303\u56f4\u5c0f\u7684\uff0c\u800c\u4e0d\u7528\u5927\u7684\uff0c\u8fd9\u6837\u53ef\u4ee5\u66f4\u591a\u7684\u8282\u7701\u5b58\u50a8\u7a7a\u95f4<\/p>\n \u5e38\u7528\u6570\u636e\u7c7b\u578b\u5982\u4e0b\uff1a<\/strong><\/p>\n \n\u6574\u6570\uff1aint<\/code>,bit<\/code><\/li>\n \u5c0f\u6570\uff1adecimal<\/code><\/li>\n \u5b57\u7b26\u4e32\uff1avarchar<\/code>,char<\/code><\/li>\n \u65e5\u671f\u65f6\u95f4\uff1adata<\/code>,time<\/code>,datatime<\/code><\/li>\n \u679a\u4e3e\u7c7b\u578b\uff1aenum<\/code><\/li>\n<\/ul>\n\u6570\u636e\u7c7b\u578b\u8bf4\u660e\uff1a<\/strong><\/p>\n \ndecimal<\/code>\u8868\u793a\u6d6e\u70b9\u6570\uff0c\u5982decimal(5,2)<\/code>\u8868\u793a\u5171\u5b585\u4f4d\u6570\uff0c\u5c0f\u6570\u53602\u4f4d<\/li>\n char<\/code>\u8868\u793a\u56fa\u5b9a\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u5982char(3)<\/code>\uff0c\u5982\u679c\u586b\u5145\u2018ab<\/code>\u2019\u65f6\u4f1a\u8865\u4e00\u4e2a\u7a7a\u683c\u4e3a\u2018ab<\/code>\u2019\uff0c3\u8868\u793a\u5b57\u7b26\u6570<\/li>\n varchar<\/code>\u8868\u793a\u53ef\u53d8\u957f\u5ea6\u5b57\u7b26\u4e32\uff0c\u5982varchar(3)<\/code>,\u586b\u5145\u2018ab<\/code>\u2019\u65f6\u5c31\u4f1a\u50a8\u5b58\u2018ab<\/code>\u2019\uff0c3\u8868\u793a\u5b57\u7b26\u6570<\/li>\n \u5bf9\u4e8e\u56fe\u7247\u3001\u97f3\u9891\u3001\u89c6\u9891\u7b49\u6587\u4ef6\uff0c\u4e0d\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u800c\u662f\u4e0a\u4f20\u5230\u67d0\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u7136\u540e\u5728\u8868\u4e2d\u5b58\u50a8\u8fd9\u4e2a\u6587\u4ef6\u7684\u4fdd\u5b58\u8def\u5f84<\/li>\n \u5b57\u7b26\u4e32text<\/code>\u8868\u793a\u50a8\u5b58\u5927\u6587\u672c\uff0c\u5f53\u5b57\u7b26\u5927\u4e8e4000\u65f6\u63a8\u8350\u4f7f\u7528\uff0c\u6bd4\u5982\u6280\u672f\u535a\u5ba2<\/li>\n<\/ul>\n\u6570\u636e\u7ea6\u675f<\/h4>\n\u7ea6\u675f\u662f\u6307\u6570\u636e\u5728\u6570\u636e\u7c7b\u578b\u9650\u5b9a\u7684\u57fa\u7840\u4e0a\u989d\u5916\u589e\u52a0\u7684\u8981\u6c42<\/p>\n \u5e38\u89c1\u7684\u7ea6\u675f\u5982\u4e0b\uff1a<\/strong><\/p>\n \n\u4e3b\u952eprimary key<\/code>\uff1a\u7269\u7406\u4e0a\u50a8\u5b58\u7684\u987a\u5e8f\uff0cMySQL\u5efa\u8bae\u6240\u6709\u8868\u7684\u4e3b\u952e\u5b57\u6bb5\u90fd\u53ebid<\/code>\uff0c\u7c7b\u578b\u4e3aint unsigned<\/code><\/li>\n \u975e\u7a7anot null<\/code>\uff1a\u6b64\u5b57\u6bb5\u4e0d\u5141\u8bb8\u586b\u5199\u7a7a\u503c<\/li>\n \u60df\u4e00unique<\/code>\uff1a\u6b64\u5b57\u6bb5\u7684\u503c\u4e0d\u5141\u8bb8\u91cd\u590d<\/li>\n \u9ed8\u8ba4default<\/code>\uff1a\u5f53\u4e0d\u586b\u5199\u5b57\u6bb5\u5bf9\u5e94\u7684\u503c\u4f1a\u4f7f\u7528\u9ed8\u8ba4\u503c\uff0c\u5982\u679c\u586b\u5199\u65f6\u4ee5\u586b\u5199\u4e3a\u51c6<\/li>\n \u5916\u952eforeign key<\/code>\uff1a\u5bf9\u5173\u7cfb\u5b57\u6bb5\u8fdb\u884c\u7ea6\u675f\uff0c\u5f53\u4e3a\u5173\u7cfb\u5b57\u6bb5\u586b\u5199\u503c\u65f6\uff0c\u4f1a\u5230\u5173\u8054\u7684\u8868\u4e2d\u67e5\u8be2\u6b64\u503c\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u5b58\u5728\u5219\u586b\u5199\u6210\u529f\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5219\u586b\u5199\u5931\u8d25\u5e76\u629b\u51fa\u5f02\u5e38<\/li>\n<\/ul>\n\u6570\u636e\u7c7b\u578b\u9644\u5f55\u8868<\/h4>\n \u6570\u503c\u7c7b\u578b<\/strong><\/h5>\n\n\n\n\n\n\n\n\n\n\n\n\n\u7c7b\u578b<\/th>\n \u5927\u5c0f<\/th>\n \u8303\u56f4\uff08\u6709\u7b26\u53f7\uff09<\/th>\n \u8303\u56f4\uff08\u65e0\u7b26\u53f7\uff09<\/th>\n \u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n TINYINT<\/td>\n 1 Bytes<\/td>\n (-128\uff0c127)<\/td>\n (0\uff0c255)<\/td>\n \u5c0f\u6574\u6570\u503c<\/td>\n<\/tr>\n SMALLINT<\/td>\n 2 Bytes<\/td>\n (-32 768\uff0c32 767)<\/td>\n (0\uff0c65 535)<\/td>\n \u5927\u6574\u6570\u503c<\/td>\n<\/tr>\n MEDIUMINT<\/td>\n 3 Bytes<\/td>\n (-8 388 608\uff0c8 388 607)<\/td>\n (0\uff0c16 777 215)<\/td>\n \u5927\u6574\u6570\u503c<\/td>\n<\/tr>\n INT\u6216INTEGER<\/td>\n 4 Bytes<\/td>\n (-2 147 483 648\uff0c2 147 483 647)<\/td>\n (0\uff0c4 294 967 295)<\/td>\n \u5927\u6574\u6570\u503c<\/td>\n<\/tr>\n BIGINT<\/td>\n 8 Bytes<\/td>\n (-9,223,372,036,854,775,808\uff0c9 223 372 036 854 775 807)<\/td>\n (0\uff0c18 446 744 073 709 551 615)<\/td>\n \u6781\u5927\u6574\u6570\u503c<\/td>\n<\/tr>\n FLOAT<\/td>\n 4 Bytes<\/td>\n (-3.402 823 466 E+38\uff0c-1.175 494 351 E-38)\uff0c0\uff0c(1.175 494 351 E-38\uff0c3.402 823 466 351 E+38)<\/td>\n 0\uff0c(1.175 494 351 E-38\uff0c3.402 823 466 E+38)<\/td>\n \u5355\u7cbe\u5ea6 \u6d6e\u70b9\u6570\u503c<\/td>\n<\/tr>\n DOUBLE<\/td>\n 8 Bytes<\/td>\n (-1.797 693 134 862 315 7 E+308\uff0c-2.225 073 858 507 201 4 E-308)\uff0c0\uff0c(2.225 073 858 507 201 4 E-308\uff0c1.797 693 134 862 315 7 E+308)<\/td>\n 0\uff0c(2.225 073 858 507 201 4 E-308\uff0c1.797 693 134 862 315 7 E+308)<\/td>\n \u53cc\u7cbe\u5ea6 \u6d6e\u70b9\u6570\u503c<\/td>\n<\/tr>\n DECIMAL<\/td>\n \u5bf9DECIMAL(M,D) \uff0c\u5982\u679cM>D\uff0c\u4e3aM+2\u5426\u5219\u4e3aD+2<\/td>\n \u4f9d\u8d56\u4e8eM\u548cD\u7684\u503c<\/td>\n \u4f9d\u8d56\u4e8eM\u548cD\u7684\u503c<\/td>\n \u5c0f\u6570\u503c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u65e5\u671f\u548c\u65f6\u95f4\u7c7b\u578b<\/strong><\/h5>\n\n\n\n\n\n\n\n\n\n\u7c7b\u578b<\/th>\n \u5927\u5c0f ( bytes)<\/th>\n \u8303\u56f4<\/th>\n \u683c\u5f0f<\/th>\n \u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n DATE<\/td>\n 3<\/td>\n 1000-01-01\/9999-12-31<\/td>\n YYYY-MM-DD<\/td>\n \u65e5\u671f\u503c<\/td>\n<\/tr>\n TIME<\/td>\n 3<\/td>\n '-838:59:59'\/'838:59:59'<\/td>\n HH:MM:SS<\/td>\n \u65f6\u95f4\u503c\u6216\u6301\u7eed\u65f6\u95f4<\/td>\n<\/tr>\n YEAR<\/td>\n 1<\/td>\n 1901\/2155<\/td>\n YYYY<\/td>\n \u5e74\u4efd\u503c<\/td>\n<\/tr>\n DATETIME<\/td>\n 8<\/td>\n '1000-01-01 00:00:00' \u5230 '9999-12-31 23:59:59'<\/td>\n YYYY-MM-DD hh:mm:ss<\/td>\n \u6df7\u5408\u65e5\u671f\u548c\u65f6\u95f4\u503c<\/td>\n<\/tr>\n TIMESTAMP<\/td>\n 4<\/td>\n '1970-01-01 00:00:01' UTC \u5230 '2038-01-19 03:14:07' UTC\u7ed3\u675f\u65f6\u95f4\u662f\u7b2c 2147483647<\/strong> \u79d2\uff0c\u5317\u4eac\u65f6\u95f4 2038-1-19 11:14:07<\/strong>\uff0c\u683c\u6797\u5c3c\u6cbb\u65f6\u95f4 2038\u5e741\u670819\u65e5 \u51cc\u6668 03:14:07<\/td>\n YYYY-MM-DD hh:mm:ss<\/td>\n \u6df7\u5408\u65e5\u671f\u548c\u65f6\u95f4\u503c\uff0c\u65f6\u95f4\u6233<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u5b57\u7b26\u4e32\u7c7b\u578b<\/h5>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u7c7b\u578b<\/th>\n \u5927\u5c0f<\/th>\n \u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n CHAR<\/td>\n 0-255 bytes<\/td>\n \u5b9a\u957f\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n VARCHAR<\/td>\n 0-65535 bytes<\/td>\n \u53d8\u957f\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n TINYBLOB<\/td>\n 0-255 bytes<\/td>\n \u4e0d\u8d85\u8fc7 255 \u4e2a\u5b57\u7b26\u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n TINYTEXT<\/td>\n 0-255 bytes<\/td>\n \u77ed\u6587\u672c\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n BLOB<\/td>\n 0-65 535 bytes<\/td>\n \u4e8c\u8fdb\u5236\u5f62\u5f0f\u7684\u957f\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n TEXT<\/td>\n 0-65 535 bytes<\/td>\n \u957f\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n MEDIUMBLOB<\/td>\n 0-16 777 215 bytes<\/td>\n \u4e8c\u8fdb\u5236\u5f62\u5f0f\u7684\u4e2d\u7b49\u957f\u5ea6\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n MEDIUMTEXT<\/td>\n 0-16 777 215 bytes<\/td>\n \u4e2d\u7b49\u957f\u5ea6\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n LONGBLOB<\/td>\n 0-4 294 967 295 bytes<\/td>\n \u4e8c\u8fdb\u5236\u5f62\u5f0f\u7684\u6781\u5927\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n LONGTEXT<\/td>\n 0-4 294 967 295 bytes<\/td>\n \u6781\u5927\u6587\u672c\u6570\u636e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u679a\u4e3e\u4e0e\u96c6\u5408\u7c7b\u578b<\/h5>\n\nENUM<\/strong>: \u679a\u4e3e\u7c7b\u578b\uff0c\u7528\u4e8e\u5b58\u50a8\u5355\u4e00\u503c\uff0c\u53ef\u4ee5\u9009\u62e9\u4e00\u4e2a\u9884\u5b9a\u4e49\u7684\u96c6\u5408\u3002<\/li>\n SET<\/strong>: \u96c6\u5408\u7c7b\u578b\uff0c\u7528\u4e8e\u5b58\u50a8\u591a\u4e2a\u503c\uff0c\u53ef\u4ee5\u9009\u62e9\u591a\u4e2a\u9884\u5b9a\u4e49\u7684\u96c6\u5408\u3002<\/li>\n<\/ul>\n\u7a7a\u95f4\u6570\u636e\u7c7b\u578b<\/h5>\nGEOMETRY, POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, GEOMETRYCOLLECTION: \u7528\u4e8e\u5b58\u50a8\u7a7a\u95f4\u6570\u636e\uff08\u5730\u7406\u4fe1\u606f\u3001\u51e0\u4f55\u56fe\u5f62\u7b49\uff09\u3002<\/p>\n 5.\u56fe\u5f62\u5316\u5ba2\u6237\u7aefNavicat<\/h3>\n Navicat\u7684\u4f7f\u7528<\/h4>\n\n\n\u548cMySQL\u6570\u636e\u5e93\u670d\u52a1\u7aef\u5efa\u7acb\u8fde\u63a5<\/p>\n<\/li>\n \n\u6570\u636e\u5e93\u7684\u64cd\u4f5c<\/p>\n \u65b0\u5efa\u6570\u636e\u5e93<\/strong><\/p>\n \u5b57\u7b26\u96c6\uff1a\u5fc5\u987b\u6307\u5b9aUTF-8<\/code>\u7f16\u7801\u683c\u5f0f(utf8 -- UTF-8 Unicode<\/code>)<\/strong>\uff0c\u5426\u5219\u51fa\u73b0\u4e2d\u6587\u5c31\u4f1a\u4e71\u7801<\/p>\n \u6392\u5e8f\u89c4\u5219\uff1a<\/p>\n \nutf8_general_ci<\/code><\/strong>\uff1a\u901a\u7528\u6392\u5e8f\u89c4\u5219\u5ffd\u7565\u5927\u5c0f\u5199\uff0c\u6bd4\u5982\uff1a\u67e5\u8be2\u65f6a<\/code>\u548cA<\/code>\u90fd\u80fd\u88ab\u67e5\u8be2\u51fa\u6765<\/li>\n utf8_bin<\/code><\/strong>\uff1a\u533a\u5206\u5927\u5c0f\u5199<\/li>\n<\/ul>\n<\/li>\n \n\u6570\u636e\u8868\u7684\u64cd\u4f5c<\/p>\n<\/li>\n \n\u6570\u636e\u8868\u4e2d\u6570\u636e\u7684\u64cd\u4f5c<\/p>\n<\/li>\n<\/ol>\n 6.\u547d\u4ee4\u884c\u5ba2\u6237\u7aefMySQL\u7684\u4f7f\u7528<\/h3>\n \u767b\u5f55\u548c\u767b\u51fa\u6570\u636e\u5e93<\/h4>\n\u767b\u5f55\u6570\u636e\u5e93<\/strong><\/p>\n \u8f93\u5165\u4e0b\u9762\u547d\u4ee4\uff1a<\/p>\n sudo mysql -uroot -p\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \n-u<\/code>\u540e\u9762\u662f\u767b\u5f55\u7684\u7528\u6237\u540d<\/li>\n -p<\/code>\u540e\u9762\u7684\u662f\u767b\u5f55\u5bc6\u7801\uff0c\u5982\u679c\u4e0d\u586b\u5199\uff0c\u56de\u8f66\u540e\u4f1a\u63d0\u793a\u8f93\u5165\u5bc6\u7801<\/li>\n<\/ul>\n\u767b\u5f55\u6210\u529f\u540e\uff0c\u8f93\u5165\u5982\u4e0b\u547d\u4ee4\u67e5\u770b\u6548\u679c\uff1a<\/strong><\/p>\n \u663e\u793a\u5f53\u524d\u65f6\u95f4<\/p>\n select now();\n<\/code><\/pre>\n\u767b\u51fa(\u9000\u51fa)\u6570\u636e\u5e93\uff1a<\/strong><\/p>\n quit<\/code>\u6216exit<\/code>\u6216ctrl+d<\/code><\/p>\n \u6570\u636e\u5e93\u64cd\u4f5c\u7684SQL\u8bed\u53e5<\/h4>\n\n\n\u67e5\u770b\u6240\u6709\u6570\u636e\u5e93<\/p>\n show databases;\n<\/code><\/pre>\n<\/li>\n\n\u521b\u5efa\u6570\u636e\u5e93<\/p>\n create database \u6570\u636e\u5e93\u540d charset=utf8;\n<\/code><\/pre>\n<\/li>\n\n\u4f7f\u7528\u6570\u636e\u5e93<\/p>\n use \u6570\u636e\u5e93\u540d;\n<\/code><\/pre>\n<\/li>\n\n\u67e5\u770b\u5f53\u524d\u4f7f\u7528\u7684\u6570\u636e\u5e93<\/p>\n select database();\n<\/code><\/pre>\n<\/li>\n\n\u5220\u9664\u6570\u636e\u5e93-\u614e\u91cd<\/p>\n drop database \u6570\u636e\u5e93\u540d;\n<\/code><\/pre>\n<\/li>\n<\/ol>\n\u8868\u7ed3\u6784\u64cd\u4f5c\u7684SQL\u8bed\u53e5<\/h4>\n\n\n\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u4e2d\u6240\u6709\u8868<\/h5>\nshow tables;\n<\/code><\/pre>\n<\/li>\n\n\u521b\u5efa\u8868<\/h5>\ncreate table students(\n id int unsigned primary key auto_increment not null, \n name varchar(10) not null, \n age tinyint default 0, \n gender enum('\u7537','\u5973','gay','\u4eba\u5996','\u4fdd\u5bc6') default '\u7537');\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n create table \u8868\u540d(\n \u5b57\u6bb5\u540d\u79f0 \u6570\u636e\u7c7b\u578b \u53ef\u9009\u7684\u7ea6\u675f\u6761\u4ef6,\n column1 datatype contrai,\n ...\n);\n<\/code><\/pre>\n\u67e5\u770b\u8868\u7ed3\u6784<\/strong><\/p>\n desc \u8868\u540d;\n<\/code><\/pre>\n<\/li>\n\n\u4fee\u6539\u8868-\u6dfb\u52a0\u5b57\u6bb5<\/h5>\nalter table \u8868\u540d add \u5217\u540d \u7c7b\u578b \u7ea6\u675f;\n# \u4f8b\uff1a\nalter table students add birthday datetime;\n<\/code><\/pre>\n<\/li>\n\n\u4fee\u6539\u8868-\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b<\/h5>\nalter table \u8868\u540d modify \u5217\u540d \u7c7b\u578b \u7ea6\u675f;\n# \u4f8b\uff1a\nalter table students modify birthday date not null;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nmodify<\/code>\uff1a\u53ea\u80fd\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\u6216\u8005\u7ea6\u675f\uff0c\u4e0d\u80fd\u4fee\u6539\u5b57\u6bb5\u540d<\/li>\n<\/ul>\n<\/li>\n \n\u4fee\u6539\u8868-\u4fee\u6539\u5b57\u6bb5\u540d\u548c\u5b57\u6bb5\u7c7b\u578b<\/h5>\nalter table \u8868\u540d change \u539f\u540d \u65b0\u540d \u7c7b\u578b\u53ca\u7ea6\u675f;\n# \u4f8b\uff1a\nalter table students change birthday birth datetime not null;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nchange<\/code>\uff1a\u65e2\u80fd\u5bf9\u5b57\u6bb5\u91cd\u547d\u540d\u53c8\u80fd\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\u8fd8\u80fd\u4fee\u6539\u7ea6\u675f<\/li>\n<\/ul>\n<\/li>\n \n\u4fee\u6539\u8868-\u5220\u9664\u5b57\u6bb5<\/h5>\nalter table \u8868\u540d drop \u5217\u540d;\n# \u4f8b\uff1a\nalter table students drop birthday;\n<\/code><\/pre>\n<\/li>\n\n\u67e5\u770b\u521b\u8868SQL\u8bed\u53e5<\/h5>\nshow create table \u8868\u540d;\n# \u4f8b\uff1a\nshow create table students;\n<\/code><\/pre>\n<\/li>\n\n\u67e5\u770b\u521b\u5e93SQL\u8bed\u53e5<\/h5>\nshow create database \u6570\u636e\u5e93\u540d;\n# \u4f8b\uff1a\nshow create database python1;\n<\/code><\/pre>\n<\/li>\n\n\u5220\u9664\u8868<\/h5>\ndrop table \u8868\u540d;\n# \u4f8b\uff1a\ndrop table students;\n<\/code><\/pre>\n<\/li>\n<\/ol>\n\u8868\u6570\u636e\u64cd\u4f5c\u7684SQL\u8bed\u53e5<\/h4>\n\n\n\u67e5\u8be2\u6570\u636e<\/h5>\n\u67e5\u8be2\u6240\u6709\u5217<\/p>\n select * from \u8868\u540d;\n# \u4f8b\uff1a\nselect * from students;\n<\/code><\/pre>\n\u67e5\u8be2\u6240\u6307\u5b9a\u5217<\/p>\n select \u52171,\u52172,... from \u8868\u540d;\n# \u4f8b\uff1a\nselect id,name from students;\n<\/code><\/pre>\n<\/li>\n\n\u6dfb\u52a0\u6570\u636e<\/h5>\n\u5168\u5217\u63d2\u5165<\/strong>\uff1a\u503c\u7684\u987a\u5e8f\u4e0e\u8868\u7ed3\u6784\u5b57\u6bb5\u7684\u987a\u5e8f\u5b8c\u5168\u4e00\u4e00\u5bf9\u5e94<\/p>\n insert into \u8868\u540d values(...);\n# \u4f8b\uff1a\ninsert into students values(0,'xx',default,default,'\u7537');\n<\/code><\/pre>\n\u90e8\u5206\u5217\u63d2\u5165<\/strong>\uff1a\u503c\u7684\u987a\u5e8f\u4e0e\u7ed9\u51fa\u7684\u5217\u987a\u5e8f\u5bf9\u5e94<\/p>\n insert into \u8868\u540d (\u52171,,...) values(\u503c1,...);\n# \u4f8b\uff1a\ninsert into students(name,age) values('\u5f20\u4e09',42);\n<\/code><\/pre>\n\u5168\u5217\u591a\u884c\u63d2\u5165<\/strong>\uff1a<\/p>\n insert into \u8868\u540d values(...),(...)...;\n# \u4f8b\uff1a\ninsert into students values(0,'\u5f20\u98de',55,1.75,'\u7537'),(0,'\u5173\u7fbd',58,1.85,'\u7537');\n<\/code><\/pre>\n\u90e8\u5206\u5217\u591a\u884c\u63d2\u5165\uff1a<\/strong><\/p>\n insert into \u8868\u540d(\u52171,\u52172,...) values(\u503c1,\u503c2,...);\n# \u4f8b\ninsert into students(name,height) values('\u5218\u5907',1.75),('\u66f9\u64cd',1.6);\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u4e3b\u952e\u7c7b\u662f\u81ea\u52a8\u589e\u957f\uff0c\u4f46\u662f\u5728\u5168\u5217\u63d2\u5165\u65f6\u9700\u8981\u5360\u4f4d\uff0c\u901a\u5e38\u4f7f\u7528\u7a7a\u503c(0<\/code>\u6216\u8005null<\/code>\u6216\u8005default<\/code>)<\/li>\n \u5728\u5168\u5217\u63d2\u5165\u65f6\uff0c\u5982\u679c\u5b57\u6bb5\u5217\u6709\u9ed8\u8ba4\u503c\u53ef\u4ee5\u4f7f\u7528defualt<\/code>\u6765\u5360\u4f4d\uff0c\u63d2\u5165\u540e\u7684\u6570\u636e\u5c31\u662f\u4e4b\u524d\u8bbe\u7f6e\u7684\u9ed8\u8ba4\u503c<\/li>\n<\/ul>\n<\/li>\n \n\u4fee\u6539\u6570\u636e<\/h5>\nupdate \u8868\u540d set \u52171=\u503c1,\u52172=\u503c2,... where \u6761\u4ef6;\n# \u4f8b\uff1a\nupdate students set age=18,gender='\u5973' where id=6;\n<\/code><\/pre>\n<\/li>\n\n\u5220\u9664\u6570\u636e<\/h5>\ndelete from \u8868\u540d where \u6761\u4ef6;\n# \u4f8b\uff1a\ndelete from students where id=5;\n<\/code><\/pre>\n\u95ee\u9898\uff1a<\/p>\n \u4e0a\u9762\u7684\u64cd\u4f5c\u79f0\u4e4b\u4e3a\u7269\u7406\u5220\u9664\uff0c\u4e00\u65e6\u5220\u9664\u5c31\u4e0d\u5bb9\u6613\u6062\u590d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u903b\u8f91\u5220\u9664\u7684\u65b9\u5f0f\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898<\/p>\n \u903b\u8f91\u5220\u9664<\/strong><\/p>\n \u6dfb\u52a0\u5220\u9664\u8868\u793a\u5b57\u6bb5\uff0c0<\/code>\u4ee3\u8868\u672a\u5220\u9664\uff0c1<\/code>\u4ee3\u8868\u5220\u9664<\/p>\n # \u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5b57\u6bb5\uff0c\u9ed8\u8ba4\u503c\u4e3a0\nalter table students add is_del tinyint default 0;\n# \u4fee\u6539\u8981\u5220\u9664\u5b57\u6bb5\u4e3a1\nupdate students set is_del=1 where id=7;\n# \u67e5\u770b\u5df2\u5220\u9664\u7684\u4eba\nselect * from students where is_del=1;\n# \u64a4\u9500\u5220\u9664\u5c061\uff0c\u6539\u62100\u5373\u53ef\n<\/code><\/pre>\n<\/li>\n<\/ol>\n\u603b\u7ed3<\/h4>\n\n\u767b\u5f55\u6570\u636e\u5e93\uff1amysql -uroot -p<\/code><\/li>\n \u9000\u51fa\u6570\u636e\u5e93\uff1aquit<\/code>\u6216\u8005exit<\/code>\u6216\u8005ctrl + d<\/code><\/li>\n \u521b\u5efa\u6570\u636e\u5e93\uff1acreate database \u6570\u636e\u5e93\u540d charst=utf8;<\/code><\/li>\n \u4f7f\u7528\u6570\u636e\u5e93\uff1ause \u6570\u636e\u5e93\u540d;<\/code><\/li>\n \u5220\u9664\u6570\u636e\u5e93\uff1adrop database \u6570\u636e\u5e93\u540d;<\/code><\/li>\n \u521b\u5efa\u8868\uff1acreate table \u8868\u540d(\u5b57\u6bb5\u540d \u5b57\u6bb5\u7c7b\u578b \u7ea6\u675f ,...);<\/code><\/li>\n \u4fee\u6539\u8868-\u6dfb\u52a0\u5b57\u6bb5\uff1aalter table \u8868\u540d add \u5b57\u6bb5\u540d \u5b57\u6bb5\u7c7b\u578b \u7ea6\u675f;<\/code><\/li>\n \u4fee\u6539\u8868-\u4fee\u6539\u5b57\u6bb5\u7c7b\u578b\uff1aalter table \u8868\u540d modify \u5b57\u6bb5\u540d \u5b57\u6bb5\u7c7b\u578b \u7ea6\u675f;<\/code><\/li>\n \u4fee\u6539\u8868-\u4fee\u6539\u5b57\u6bb5\u540d\u548c\u5b57\u6bb5\u7c7b\u578b\uff1aalter table \u8868\u540d change \u539f\u5b57\u6bb5\u540d \u65b0\u5b57\u6bb5\u540d \u5b57\u6bb5\u7c7b\u578b \u7ea6\u675f;<\/code><\/li>\n \u4fee\u6539\u8868-\u5220\u9664\u5b57\u6bb5\uff1aalter table \u8868\u540d drop \u5b57\u6bb5\u540d;<\/code><\/li>\n \u5220\u9664\u8868\uff1adrop table \u8868\u540d;<\/code><\/li>\n \u67e5\u8be2\u6570\u636e\uff1aselect * from \u8868\u540d;<\/code>\u6216\u8005select \u52171,\u52172 from \u8868\u540d;<\/code><\/li>\n \u63d2\u5165\u6570\u636e\uff1ainsert into \u8868\u540d values(....);<\/code>\u6216\u8005insert into \u8868\u540d(\u52171,...) values(\u503c1,...);<\/code><\/li>\n \u4fee\u6539\u6570\u636e\uff1aupdate \u8868\u540d set \u52171=\u503c1,\u52172=\u503c2... where \u6761\u4ef6;<\/code><\/li>\n \u5220\u9664\u6570\u636e\uff1adelete from \u8868\u540d where \u6761\u4ef6;<\/code><\/li>\n<\/ul>\n7.as<\/code>\u548cdistinct<\/code>\u5173\u952e\u5b57<\/h3>\nas<\/code>\u5173\u952e\u5b57<\/h4>\n\u5728\u4f7f\u7528SQL\u8bed\u53e5\u663e\u793a\u7ed3\u679c\u7684\u65f6\u5019\uff0c\u5f80\u5f80\u5728\u5c4f\u5e55\u663e\u793a\u7684\u5b57\u6bb5\u540d\u4e0d\u5177\u5907\u826f\u597d\u7684\u53ef\u8bfb\u6027\uff0c\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528as<\/code>\u7ed9\u5b57\u6bb5\u8d77\u4e00\u4e2a\u522b\u540d<\/p>\n \n\n\u4f7f\u7528as<\/code>\u7ed9\u5b57\u6bb5\u8d77\u522b\u540d<\/p>\n select id as \u5e8f\u53f7, name as \u540d\u5b57, age as \u5e74\u9f84, gender as \u6027\u522b from \u8868\u540d;\n<\/code><\/pre>\n<\/li>\n\n\u901a\u8fc7as<\/code>\u7ed9\u8868\u8d77\u522b\u540d<\/p>\n \u5982\u679c\u662f\u5355\u8868\u67e5\u8be2-\u53ef\u4ee5\u7701\u7565\u8868\u540d<\/p>\n select id,name,gender from students; \n<\/code><\/pre>\n\u8868.\u5b57\u6bb5\u540d<\/code><\/p>\n select students.id,students.name from students;\n<\/code><\/pre>\n\u53ef\u4ee5\u901a\u8fc7as<\/code>\u7ed9\u8868\u8d77\u522b\u540d<\/p>\n select s.id,s.name from students as s;\n<\/code><\/pre>\n\u8bf4\u660e<\/strong><\/p>\n \n\u5728\u8fd9\u91cc\u7ed9\u8868\u8d77\u522b\u540d\uff0c\u770b\u8d77\u6765\u5e76\u6ca1\u4ec0\u4e48\u610f\u4e49\uff0c\u5e76\u4e0d\u662f\u8fd9\u6837\u7684\uff0c\u540e\u671f\u5b66\u4e60\u81ea\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u5fc5\u987b\u8981\u5bf9\u8868\u8d77\u522b\u540d<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\ndistinct<\/code>\u5173\u952e\u5b57<\/h4>\ndistinct<\/code>\u53ef\u4ee5\u53bb\u9664\u91cd\u590d\u6570\u636e\u884c<\/p>\n select distinct gender from students;\n<\/code><\/pre>\n\u591a\u5217\uff1a<\/p>\n select distinct age,gender from students;\n<\/code><\/pre>\n8.where<\/code>\u6761\u4ef6\u67e5\u8be2<\/h3>\nwhere<\/code>\u6761\u4ef6\u67e5\u8be2\u7684\u4ecb\u7ecd<\/h4>\n\u4f7f\u7528where<\/code>\u6761\u4ef6\u67e5\u8be2\u53ef\u4ee5\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u7b5b\u9009\uff0c\u6761\u4ef6\u6210\u7acb\u7684\u8bb0\u5f55\u4f1a\u51fa\u73b0\u5728\u7ed3\u679c\u96c6\u4e2d<\/p>\n where<\/code>\u8bed\u53e5\u652f\u6301\u7684\u8fd0\u7b97\u7b26<\/strong><\/p>\n \n\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/li>\n \u903b\u8f91\u8fd0\u7b97\u7b26<\/li>\n \u6a21\u7cca\u67e5\u8be2<\/li>\n \u8303\u56f4\u67e5\u8be2<\/li>\n \u7a7a\u5224\u65ad<\/li>\n<\/ol>\nwhere<\/code>\u6761\u4ef6\u67e5\u8be2\u8bed\u6cd5\u683c\u5f0f<\/strong><\/p>\n select * from \u8868\u540d where \u6761\u4ef6;\n<\/code><\/pre>\n\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/h4>\n\n\u7b49\u4e8e\uff1a=<\/code><\/li>\n \u5927\u4e8e\uff1a><\/code><\/li>\n \u5927\u4e8e\u7b49\u4e8e\uff1a>=<\/code><\/li>\n \u5c0f\u4e8e\uff1a<<\/code><\/li>\n \u5c0f\u4e8e\u7b49\u4e8e\uff1a<=<\/code><\/li>\n \u4e0d\u7b49\u4e8e\uff1a!=<\/code>\u6216<><\/code><\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u7f16\u53f7\u5927\u4e8e3\u7684\u5b66\u751f<\/p>\n select * from students where id>3;\n<\/code><\/pre>\n\u67e5\u8be2\u7f16\u53f7\u4e0d\u5927\u4e8e4\u7684\u5b66\u751f<\/p>\n select * from students where id<=4;\n<\/code><\/pre>\n\u67e5\u8be2\u59d3\u540d\u4e0d\u662f\u201c\u9ec4\u84c9\u201d\u7684\u5b66\u751f<\/p>\n select * from students where name!='\u9ec4\u84c9';\nselect * from students where name<>'\u9ec4\u84c9';\n<\/code><\/pre>\n\u67e5\u8be2\u6ca1\u88ab\u5220\u7684\u5b66\u751f<\/p>\n select * from students where is_del=0;\n<\/code><\/pre>\n\u903b\u8f91\u8fd0\u7b97\u7b26<\/h4>\n\nand<\/code><\/li>\n or<\/code><\/li>\n not<\/code><\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u7f16\u53f7\u5927\u4e8e3\u7684\u5973\u540c\u5b66<\/p>\n select * from students where id > 3 and gender='\u5973';\n<\/code><\/pre>\n\u67e5\u8be2\u7f16\u53f7\u5c0f\u4e8e4\u6216\u6ca1\u88ab\u5220\u9664\u7684\u5b66\u751f<\/p>\n select * from students where id < 4 and is_del = 0;\n<\/code><\/pre>\n\u67e5\u8be2\u5e74\u9f84\u4e0d\u572810\u5c81\u523015\u5c81\u4e4b\u95f4\u7684\u5b66\u751f<\/p>\n select * from students where not (age>=10 and age <=15);\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \n\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u60f3\u8981\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\uff0c\u53ef\u4ee5\u7ed3\u5408"()<\/code>"<\/li>\n<\/ul>\n\u6a21\u7cca\u67e5\u8be2<\/h4>\n\nlike<\/code>\uff1a\u662f\u6a21\u7cca\u67e5\u8be2\u5173\u952e\u5b57<\/li>\n %<\/code>\uff1a\u8868\u793a\u4efb\u610f\u591a\u4e2a\u4efb\u610f\u5b57\u7b26<\/li>\n _<\/code>\uff1a\u8868\u793a\u4e00\u4e2a\u4efb\u610f\u5b57\u7b26<\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u59d3\u9ec4\u7684\u5b66\u751f<\/p>\n select * from students where name like '\u9ec4%';\n<\/code><\/pre>\n\u67e5\u8be2\u59d3\u9ec4\u4e14\u201c\u540d\u201d\u662f\u4e00\u4e2a\u5b57\u7684\u5b66\u751f<\/p>\n select * from students where name like '\u9ec4_';\n# \u4e24\u4e2a\nselect * from students where name like '\u9ec4__';\n<\/code><\/pre>\n\u67e5\u8be2\u59d3\u9ec4\u6216\u8005\u53eb\u9756\u7684\u5b66\u751f<\/p>\n select * from students where name like '\u9ec4%' or name like '%\u9756';\n<\/code><\/pre>\n\u8303\u56f4\u67e5\u8be2<\/h4>\n\nbetween .. and ..<\/code>\uff1a\u8868\u793a\u5728\u4e00\u4e2a\u8fde\u7eed\u7684\u8303\u56f4\u5185\u67e5\u8be2<\/li>\n in<\/code>\uff1a\u8868\u793a\u5728\u4e00\u4e2a\u975e\u8fde\u7eed\u7684\u8303\u56f4\u5185\u67e5\u8be2<\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u7f16\u53f7\u4e3a3\u81f38\u7684\u5b66\u751f<\/p>\n select * from students where id between 3 and 8;\n<\/code><\/pre>\n\u67e5\u8be2\u7f16\u53f7\u4e0d\u662f3\u81f38\u7684\u7537\u751f<\/p>\n select * from students where not (id between 3 and 8);\n<\/code><\/pre>\n\u67e5\u8be2\u7f16\u53f7\u662f3\u30015\u30017\u7684\u5b66\u751f<\/p>\n select * from students where id in (3,5,7);\n<\/code><\/pre>\n\u67e5\u8be2\u7f16\u53f7\u4e0d\u662f3\u30015\u30017\u7684\u5b66\u751f<\/p>\n select * from students where id not in (3,5,7);\n<\/code><\/pre>\n\u7a7a\u5224\u65ad\u67e5\u8be2<\/h4>\n\n\u5224\u65ad\u4e3a\u7a7a\u4f7f\u7528\uff1ais null<\/code><\/li>\n \u5224\u65ad\u975e\u7a7a\u4f7f\u7528\uff1ais not null<\/code><\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u6ca1\u6709\u586b\u5199\u8eab\u9ad8\u7684\u5b66\u751f<\/p>\n select * from students where height is null;\n<\/code><\/pre>\n\u67e5\u8be2\u586b\u5199\u8eab\u9ad8\u7684\u5b66\u751f<\/p>\n select * from students where height is not null;\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font><\/p>\n \n\u4e0d\u80fd\u4f7f\u7528where height = null<\/code>\u5224\u65ad\u4e3a\u7a7a<\/li>\n \u4e0d\u80fd\u4f7f\u7528where height != null<\/code>\u5224\u65ad\u975e\u7a7a<\/li>\n null<\/code>\u4e0d\u7b49\u4e8e\u2018\u2019<\/code>\u7a7a\u5b57\u7b26\u4e32<\/li>\n<\/ol>\n9.\u6392\u5e8f<\/h3>\n \u6392\u5e8f\u67e5\u8be2\u8bed\u6cd5<\/h4>\nselect * from \u8868\u540d order by \u52171 asc|desc [\u52172 asc|desc,...];\n<\/code><\/pre>\n\u8bed\u6cd5\u8bf4\u660e<\/h4>\n\n\u5148\u6309\u7167\u52171\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u52171\u7684\u503c\u76f8\u540c\u65f6\uff0c\u5219\u6309\u7167\u52172\u6392\u5e8f\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/li>\n asc<\/code>\uff1a\u4ece\u5c0f\u5230\u5927\u6392\u5217\uff0c\u5373\u5347\u5e8f<\/li>\n desc<\/code>\uff1a\u4ece\u5927\u5230\u5c0f\u6392\u5e8f\uff0c\u5373\u964d\u5e8f<\/li>\n \u9ed8\u8ba4\u6309\u7167\u5217\u503c\u4ece\u5927\u5230\u5c0f\uff0c(\u5373asc<\/code>\u5173\u952e\u5b57)<\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u672a\u5220\u9664\u7684\u7537\u751f\u4fe1\u606f\uff0c\u6309\u5b66\u53f7\u6392\u5e8f<\/p>\n select * from students where gender='\u7537' and is_del=0 order by id desc;\n<\/code><\/pre>\n\u663e\u793a\u6240\u6709\u5b66\u751f\u7684\u4fe1\u606f\uff0c\u5148\u6309\u7167\u5e74\u9f84\u4ece\u5927–>\u5c0f\u6392\u5e8f\uff0c\u5f53\u5e74\u9f84\u76f8\u540c\u65f6\uff0c\u6309\u7167\u8eab\u9ad8\u4ece\u9ad8–>\u77ee\u6392\u5e8f<\/p>\n select * from students order by age desc, height desc;\n<\/code><\/pre>\n10.\u5206\u9875\u67e5\u8be2<\/h3>\n \u5206\u9875\u67e5\u8be2\u7684\u8bed\u6cd5<\/h4>\nselect * from \u8868\u540d limit start,count\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nlimit<\/code>\uff1a\u662f\u5206\u9875\u67e5\u8be2\u5173\u952e\u5b57<\/li>\n start<\/code>\uff1a\u8868\u793a\u5f00\u59cb\u884c\u7d22\u5f15\uff0c\u9ed8\u8ba4\u662f0<\/li>\n count<\/code>\uff1a\u8868\u793a\u67e5\u8be2\u6761\u6570<\/li>\n<\/ol>\n\u4f8b\uff1a<\/p>\n \u67e5\u8be2\u524d\u4e09\u884c\u7537\u751f\u4fe1\u606f<\/p>\n select * from students where gender='\u7537' limit 0,3;\n# \u7b80\u5199\nselect * from students where gender='\u7537' limit 3;\n<\/code><\/pre>\n\u5206\u9875\u67e5\u8be2\u6848\u4f8b<\/h4>\n\u5df2\u77e5\u6bcf\u9875\u663e\u793am\u6761\u6570\u636e\uff0c\u6c42\u7b2cn\u9875\u663e\u793a\u7684\u6570\u636e<\/p>\n \u63d0\u793a\uff1a\u5173\u952e\u662f\u6c42\u6bcf\u9875\u7684\u5f00\u59cb\u884c\u7d22\u5f15<\/p>\n \u67e5\u8be2\u5b66\u751f\u8868\uff0c\u83b7\u53d6\u7b2cn\u4e5f\u6570\u636e\u7684SQL\u8bed\u53e5\uff1a<\/p>\n select * from students limit (n-1)m,n;\n<\/code><\/pre>\n\u4e8c\u5341\u4e8c\u3001MySQL<\/code>\u6570\u636e\u5e93\u7684\u6761\u4ef6\u67e5\u8be2<\/h2>\nMySQL\u6e05\u5c4f\u547d\u4ee4<\/h3>\nsystem clear\n<\/code><\/pre>\n1.\u805a\u5408\u51fd\u6570<\/h3>\n \u805a\u5408\u51fd\u6570\u7684\u4ecb\u7ecd<\/h4>\n\u805a\u5408\u51fd\u6570\u53c8\u53eb\u7ec4\u51fd\u6570\uff0c\u901a\u5e38\u662f\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97\uff0c\u4e00\u822c\u7ed3\u5408\u5206\u7ec4(group by)\u6765\u4f7f\u7528\uff0c\u7528\u4e8e\u7edf\u8ba1\u548c\u8ba1\u7b97\u5206\u7ec4\u6570\u636e<\/p>\n \u5e38\u7528\u7684\u805a\u5408\u51fd\u6570<\/strong><\/p>\n \ncount(col)<\/code>\uff1a\u8868\u793a\u6c42\u6307\u5b9a\u5217\u7684\u603b\u884c\u6570<\/li>\n max(col)<\/code>\uff1a\u8868\u793a\u6c42\u6307\u5b9a\u5217\u7684\u6700\u5927\u503c<\/li>\n min(col)<\/code>\uff1a\u8868\u793a\u6c42\u6307\u5b9a\u5217\u7684\u6700\u5c0f\u503c<\/li>\n sum(col)<\/code>\uff1a\u8868\u793a\u6c42\u6307\u5b9a\u5217\u7684\u548c<\/li>\n avg(col)<\/code>\uff1a\u8868\u793a\u6c42\u6307\u5b9a\u5217\u7684\u5e73\u5747\u503c<\/li>\n<\/ol>\n\u6c42\u603b\u884c\u6570<\/h4>\n\u8fd4\u56de\u975enull<\/code>\u7684\u603b\u884c\u6570<\/p>\n select count(height) from students;\n<\/code><\/pre>\n\u8fd4\u56de\u603b\u884c\u6570\uff0c\u5305\u542bnull<\/code>\u503c\u8bb0\u5f55<\/p>\n select count() from students;\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u805a\u5408\u51fd\u6570\u4e0d\u4f1a\u5bf9\u7a7a\u503c\u8fdb\u884c\u7edf\u8ba1\uff0c\u4e00\u822c\u5982\u679c\u8981\u6307\u5b9a\u5217\u540d\uff0c\u90a3\u4e48\u5c31\u662f\u4e3b\u952e\u5b57\u6bb5\uff0c\u901a\u7528\u5199\u6cd5\u4f7f\u7528<\/code><\/p>\n \u6c42\u6700\u5927\u503c<\/h4>\n\u67e5\u8be2\u5973\u751f\u7684\u7f16\u53f7\u6700\u5927\u503c<\/p>\n select max(id) from students where gender='\u5973';\n<\/code><\/pre>\n\u6c42\u6700\u5c0f\u503c<\/h4>\n\u67e5\u8be2\u672a\u5220\u9664\u5b66\u751f\u7684\u6700\u5c0f\u7f16\u53f7<\/p>\n select min(id) from students where is_del=0; \n<\/code><\/pre>\n\u6c42\u548c<\/h4>\n\u67e5\u8be2\u7537\u751f\u7684\u603b\u8eab\u9ad8<\/p>\n select sum(height) from students where gender='\u7537';\n<\/code><\/pre>\n\u6c42\u5e73\u5747\u503c<\/h4>\n\u67e5\u8be2\u5e73\u5747\u8eab\u9ad8<\/p>\n select avg(height) from students;\n<\/code><\/pre>\n\u67e5\u8be2\u5e73\u5747\u8eab\u9ad8(\u5305\u542bnull<\/code>\u503c)<\/p>\n select avg(ifnull(height,0)) from students;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nifnull<\/code>\u51fd\u6570\uff1a\u8868\u793a\u5224\u65ad\u6307\u5b9a\u5b57\u6bb5\u662f\u5426\u4e3anull<\/code>\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u4f7f\u7528\u81ea\u5df1\u63d0\u4f9b\u7684\u503c<\/li>\n<\/ul>\n\u805a\u5408\u51fd\u6570\u7684\u7279\u70b9<\/h4>\n\n\u805a\u5408\u51fd\u6570\u9ed8\u8ba4\u5ffd\u7565\u5b57\u6bb5\u4e3anull<\/code>\u7684\u8bb0\u5f55\uff0c\u8981\u60f3\u5217\u503c\u4e3anull<\/code>\u7684\u8bb0\u5f55\u4e5f\u53c2\u4e0e\u8ba1\u7b97\uff0c\u5fc5\u987b\u4f7f\u7528ifnull<\/code>\u51fd\u6570\u5bf9null<\/code>\u503c\u505a\u66ff\u6362<\/li>\n<\/ul>\n2.\u5206\u7ec4\u67e5\u8be2<\/h3>\n \u5206\u7ec4\u51fd\u6570\u4ecb\u7ecd<\/h4>\n\u5206\u7ec4\u67e5\u8be2\u5c31\u662f\u5c06\u67e5\u8be2\u7684\u7ed3\u679c\u6309\u7167\u6307\u5b9a\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u5b57\u6bb5\u4e2d\u6570\u636e\u76f8\u7b49\u7684\u5206\u4e3a\u4e00\u7ec4<\/p>\n \u5206\u7ec4\u67e5\u8be2\u57fa\u672c\u8bed\u6cd5\uff1a<\/strong><\/p>\n GROUP BY \u5217\u540d [HAVING \u6761\u4ef6\u8868\u8fbe\u5f0f] [WITH ROLLUP]\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \n\u5217\u540d\uff1a\u662f\u6307\u6309\u7167\u6307\u5b9a\u5b57\u6bb5\u7684\u503c\u8fdb\u884c\u5206\u7ec4<\/li>\n HAVING \u6761\u4ef6\u8868\u8fbe\u5f0f<\/code>\uff1a\u7528\u6765\u8fc7\u6ee4\u5206\u7ec4\u540e\u7684\u6570\u636e<\/li>\n WITH ROLLUP<\/code>\uff1a\u5728\u6240\u6709\u8bb0\u5f55\u7684\u6700\u540e\u52a0\u4e0a\u8bb0\u5f55\uff0c\u663e\u793aselect<\/code>\u67e5\u8be2\u65f6\u805a\u5408\u51fd\u6570\u7684\u7edf\u8ba1\u548c\u8ba1\u7b97\u7ed3\u679c<\/li>\n<\/ul>\ngroup by<\/code>\u7684\u4f7f\u7528<\/h4>\ngroup by<\/code>\u53ef\u4ee5\u7528\u4e8e\u5355\u4e2a\u5b57\u6bb5\u5206\u7ec4\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u591a\u4e2a\u5b57\u6bb5\u5206\u7ec4<\/p>\n \u6839\u636egender<\/code>\u5b57\u6bb5\u6765\u5206\u7ec4<\/p>\n select gender from students group by gender;\n<\/code><\/pre>\n\u6839\u636ename<\/code>\u548cgender<\/code>\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4<\/p>\n select name,gender from students group by name,gender;\n<\/code><\/pre>\ngroup by + group_concat()<\/code>\u7684\u4f7f\u7528<\/h4>\ngroup_concat(\u5b57\u6bb5\u540d)<\/code>\uff1a\u7edf\u8ba1\u6bcf\u4e2a\u5206\u7ec4\u6307\u5b9a\u5b57\u6bb5\u7684\u4fe1\u606f\u96c6\u5408\uff0c\u6bcf\u4e2a\u4fe1\u606f\u4e4b\u95f4\u4f7f\u7528\u9017\u53f7\u8fdb\u884c\u5206\u5272<\/p>\n \u6839\u636egender<\/code>\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u67e5\u8be2gender<\/code>\u5b57\u6bb5\u548c\u5206\u7ec4\u7684name<\/code>\u5b57\u6bb5\u4fe1\u606f<\/p>\n select gender,group_concat(name) from students group by gender;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +--------+---------------------------------------+\n| gender | group_concat(name) |\n+--------+---------------------------------------+\n| \u7537 | \u5409\u5409,\u5149\u5934\u5f3a,\u718a\u5927,\u718a\u4e8c,\u5f20\u4e09\t\t\t |\n| \u5973 | \u7fe0\u82b1,\u5c0f\u4e54\t\t\t\t\t\t\t |\n+--------+---------------------------------------+\n<\/code><\/pre>\n\u7edf\u8ba1\u4e0d\u540c\u6027\u522b\u7684\u5e73\u5747\u5e74\u9f84<\/p>\n select gender,avg(age) from students group by gender;\n<\/code><\/pre>\n\u7edf\u8ba1\u4e0d\u540c\u6027\u522b\u7684\u4eba\u7684\u4e2a\u6570<\/p>\n select gender,count() from students group by gender;\n<\/code><\/pre>\n\u6839\u636egender<\/code>\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u7edf\u8ba1\u5206\u7ec4\u6761\u6761\u6570\u5927\u4e8e2\u7684<\/p>\n select gender,count() from students group by gender having count()>2;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a\u5bf9\u5206\u7ec4\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u4f7f\u7528having<\/code><\/p>\n group by + with rollup<\/code>\u7684\u4f7f\u7528<\/h4>\nwith rollup<\/code>\u7684\u4f5c\u7528\u662f\uff1a\u5728\u6700\u4f1a\u8bb0\u5f55\u540e\u9762\u65b0\u589e\u4e00\u884c\uff0c\u663e\u793aselect<\/code>\u67e5\u8be2\u65f6\u805a\u5408\u51fd\u6570\u7684\u7edf\u8ba1\u548c\u8ba1\u7b97\u7ed3\u679c<\/p>\n \u6839\u636egender<\/code>\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u6c47\u603b\u603b\u4eba\u6570<\/p>\n select gender,count() from students group by gender with rollup;\n<\/code><\/pre>\n\u6839\u636egender<\/code>\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u6c47\u603b\u6240\u6709\u4eba\u7684\u5e74\u9f84<\/p>\n select gender,group_concat(age) from students group by gender with rollup;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +--------+----------------------+\n| gender | group_concat(age) |\n+--------+----------------------+\n| \u7537 | 24,44,33,27,18 |\n| \u5973 | 21,24 |\n| NULL | 24,44,33,27,18,21,24 |\n+--------+----------------------+\n<\/code><\/pre>\n\u8fde\u63a5\u67e5\u8be2\u7684\u4ecb\u7ecd<\/h3>\n\u8fde\u63a5\u67e5\u8be2\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u8868\u7684\u67e5\u8be2\uff0c\u5f53\u67e5\u8be2\u7684\u5b57\u6bb5\u6570\u636e\u6765\u81ea\u4e0d\u540c\u7684\u8868\u5c31\u53ef\u4ee5\u4f7f\u7528\u8fde\u63a5\u67e5\u8be2\u6765\u5b8c\u6210<\/p>\n \u8fde\u63a5\u67e5\u8be2\u53ef\u4ee5\u5206\u4e3a\uff1a<\/p>\n \n\u5185\u8fde\u63a5\u67e5\u8be2<\/li>\n \u5de6\u8fde\u63a5\u67e5\u8be2<\/li>\n \u53f3\u8fde\u63a5\u67e5\u8be2<\/li>\n \u81ea\u8fde\u63a5\u67e5\u8be2<\/li>\n<\/ol>\n3.\u8fde\u63a5\u67e5\u8be2-\u5185\u8fde\u63a5<\/h3>\n\u67e5\u8be2\u4e24\u4e2a\u8868\u4e2d\u590d\u5408\u6761\u4ef6\u7684\u5171\u6709\u8bb0\u5f55<\/p>\n <\/p>\n \u5185\u8fde\u63a5\u67e5\u8be2\u8bed\u6cd5\uff1a<\/strong><\/p>\n select \u5b57\u6bb5 from \u88681 inner join \u88682 no \u88681.\u5b57\u6bb51 = \u88682.\u5b57\u6bb52;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \ninner join<\/code>\uff1a\u5c31\u662f\u5185\u8fde\u63a5\u67e5\u8be2\u7684\u5173\u952e\u5b57<\/li>\n on<\/code>\uff1a\u5c31\u662f\u8fde\u63a5\u67e5\u8be2\u6761\u4ef6<\/li>\n<\/ul>\n\u4f8b<\/strong>\uff1a\u4f7f\u7528\u5185\u8fde\u63a5\u67e5\u8be2\u5b66\u751f\u8868\u4e0e\u73ed\u7ea7\u8868<\/p>\n select from students as s inner join classes as c on s.c_id = c.id;\n<\/code><\/pre>\n\u65b9\u6cd5\u4e8c\uff1a<\/p>\n select s.name,c.name from students as s inner join classes as c on s.c_id = c.id;\n<\/code><\/pre>\n\u6548\u679c\uff1a<\/p>\n +-----------+--------+\n| name | name |\n+-----------+--------+\n| \u5409\u5409 | python |\n| \u5149\u5934\u5f3a | python |\n| \u7fe0\u82b1 | java |\n| \u5c0f\u4e54 | python |\n| \u718a\u5927 | java |\n| \u5f20\u4e09 | python |\n+-----------+--------+\n<\/code><\/pre>\n4.\u8fde\u63a5\u67e5\u8be2-\u5de6\u8fde\u63a5<\/h3>\n\u4ee5\u5de6\u8868\u4e3a\u4e3b\u6839\u636e\u6761\u4ef6\u67e5\u8be2\u53f3\u8868\u6570\u636e\uff0c\u5982\u679c\u6839\u636e\u6761\u4ef6\u67e5\u8be2\u53f3\u8868\u6570\u636e\u4e0d\u5b58\u5728\u4f7f\u7528null<\/code>\u503c\u586b\u5145<\/p>\n <\/p>\n \u5de6\u8fde\u63a5\u67e5\u8be2\u8bed\u6cd5\u683c\u5f0f\uff1a<\/strong><\/p>\n select \u5b57\u6bb5 from \u88681 left join \u88682 on \u88681.\u5b57\u6bb51=\u88682.\u5b57\u6bb52\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nleft join<\/code>\uff1a\u5c31\u662f\u5de6\u8fde\u63a5\u67e5\u8be2\u5173\u952e\u5b57<\/li>\n on<\/code>\uff1a\u5c31\u662f\u8fde\u63a5\u67e5\u8be2\u6761\u4ef6<\/li>\n \u88681<\/code>\uff1a\u5c31\u662f\u5de6\u8868<\/li>\n \u88682<\/code>\uff1a\u5c31\u662f\u53f3\u8868<\/li>\n<\/ul>\n\u4f8b\uff1a\u4f7f\u7528\u5de6\u8fde\u63a5\u67e5\u8be2\u5b66\u751f\u8868\u4e0e\u73ed\u7ea7<\/p>\n select s.name,c.name from students as s left join classes as c on s.c_id = c.id;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +-----------+--------+\n| name | name |\n+-----------+--------+\n| \u5409\u5409 | python |\n| \u5149\u5934\u5f3a | python |\n| \u7fe0\u82b1 | java |\n| \u5c0f\u4e54 | python |\n| \u718a\u5927 | java |\n| \u718a\u4e8c | NULL |\n| \u5f20\u4e09 | python |\n+-----------+--------+\n<\/code><\/pre>\n5.\u8fde\u63a5\u67e5\u8be2-\u53f3\u8fde\u63a5<\/h3>\n\u4ee5\u53f3\u8868\u4e3a\u4e3b\u6839\u636e\u6761\u4ef6\u67e5\u8be2\u5de6\u8868\u6570\u636e\uff0c\u5982\u679c\u6839\u636e\u6761\u4ef6\u67e5\u8be2\u5de6\u8868\u6570\u636e\u4e0d\u5b58\u5728\u4f7f\u7528null<\/code>\u503c\u586b\u5145<\/p>\n <\/p>\n \u53f3\u8fde\u63a5\u67e5\u8be2\u8bed\u6cd5\u683c\u5f0f\uff1a<\/strong><\/p>\n select \u5b57\u6bb5 from \u88681 right join \u88682 on \u88681.\u5b57\u6bb51=\u88682.\u5b57\u6bb52\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/p>\n \nright join<\/code>\uff1a\u5c31\u662f\u53f3\u8fde\u63a5\u67e5\u8be2\u5173\u952e\u5b57<\/li>\n on<\/code>\uff1a\u5c31\u662f\u8fde\u63a5\u67e5\u8be2\u6761\u4ef6<\/li>\n \u88681<\/code>\uff1a\u5c31\u662f\u5de6\u8868<\/li>\n \u88682<\/code>\uff1a\u5c31\u662f\u53f3\u8868<\/li>\n<\/ul>\n\u4f8b\uff1a\u4f7f\u7528\u53f3\u8fde\u63a5\u67e5\u8be2\u5b66\u751f\u8868\u4e0e\u73ed\u7ea7<\/p>\n select s.name,c.name from students as s right join classes as c on s.c_id = c.id;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +-----------+--------+\n| name | name |\n+-----------+--------+\n| \u5f20\u4e09 | python |\n| \u5c0f\u4e54 | python |\n| \u5149\u5934\u5f3a | python |\n| \u5409\u5409 | python |\n| \u718a\u5927 | java |\n| \u7fe0\u82b1 | java |\n| NULL | THML |\n+-----------+--------+\n<\/code><\/pre>\n6.\u8fde\u63a5\u67e5\u8be2-\u81ea\u8fde\u63a5<\/h3>\n\u5de6\u8868\u548c\u53f3\u8868\u662f\u540c\u4e00\u5f20\u8868\uff0c\u6839\u636e\u8fde\u63a5\u67e5\u8be2\u6761\u4ef6\u67e5\u8be2\u4e24\u4e2a\u8868\u4e2d\u7684\u6570\u636e<\/p>\n \u521b\u5efaareas<\/code>\u8868\uff1a<\/p>\n create table areas(id varchar(30) not null primary key, title varchar(30) not null, pid varchar(30));\n<\/code><\/pre>\n\u6267\u884cSQL\u8bed\u53e5\u7ed9areas<\/code>\u8868\u5bfc\u5165\u6570\u636e\uff1a<\/p>\n source areas.sql;\n<\/code><\/pre>\n\n\n\u6269\u5c55\uff1aareas.sql<\/code>\u6587\u4ef6\u7684\u5236\u4f5c<\/h5>\n\u65b0\u5efa\u6587\u672c\u6587\u4ef6\uff0c\u63d2\u5165\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n INSERT INTO `areas` VALUES ('440000', '\u5e7f\u4e1c\u7701', NULL);\nINSERT INTO `areas` VALUES ('440100', '\u5e7f\u5dde\u5e02', '440000');\nINSERT INTO `areas` VALUES ('440300', '\u6df1\u5733\u5e02', '440000');\nINSERT INTO `areas` VALUES ('440600', '\u4f5b\u5c71\u5e02', '440000');\nINSERT INTO `areas` VALUES ('440700', '\u6c5f\u95e8\u5e02', '440000');\nINSERT INTO `areas` VALUES ('510000', '\u56db\u5ddd\u7701', NULL);\nINSERT INTO `areas` VALUES ('510100', '\u6210\u90fd\u5e02', '510000');\nINSERT INTO `areas` VALUES ('510600', '\u5fb7\u9633\u5e02', '510000');\nINSERT INTO `areas` VALUES ('510700', '\u7ef5\u9633\u5e02', '510000');\nINSERT INTO `areas` VALUES ('510800', '\u5e7f\u5143\u5e02', '510000');\nINSERT INTO `areas` VALUES ('420000', '\u6e56\u5317\u7701', NULL);\nINSERT INTO `areas` VALUES ('420100', '\u6b66\u6c49\u5e02', '420000');\nINSERT INTO `areas` VALUES ('420500', '\u5b9c\u660c\u5e02', '420000');\nINSERT INTO `areas` VALUES ('420600', '\u8944\u9633\u5e02', '420000');\nINSERT INTO `areas` VALUES ('420700', '\u9102\u5dde\u5e02', '420000');\nINSERT INTO `areas` VALUES ('610000', '\u9655\u897f\u7701', NULL);\nINSERT INTO `areas` VALUES ('610100', '\u897f\u5b89\u5e02', '610000');\nINSERT INTO `areas` VALUES ('610200', '\u94dc\u5ddd\u5e02', '610000');\nINSERT INTO `areas` VALUES ('610300', '\u5b9d\u9e21\u5e02', '610000');\nINSERT INTO `areas` VALUES ('610400', '\u54b8\u9633\u5e02', '610000');\n<\/code><\/pre>\n\u4fdd\u5b58\u5e76\u9000\u51fa\uff0c\u5c06\u540e\u7f00.txt<\/code>\u6539\u4e3a.sql<\/code>\uff0c\u5bfc\u5165Ubuntu\u5373\u53ef<\/p>\n<\/li>\n<\/ul>\n \u67e5\u8be2\u5730\u5740\u5c5e\u4e8e\u54ea\u4e2a\u5730\u65b9<\/p>\n select c.id,c.title,c.pid,p.title from areas as c inner join areas as p on c.pid = p.id;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +--------+-----------+--------+-----------+\n| id | title | pid | title |\n+--------+-----------+--------+-----------+\n| 420100 | \u6b66\u6c49\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420500 | \u5b9c\u660c\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420600 | \u8944\u9633\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420700 | \u9102\u5dde\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 440100 | \u5e7f\u5dde\u5e02 | 440000 | \u5e7f\u4e1c\u7701 |\n| 440300 | \u6df1\u5733\u5e02 | 440000 | \u5e7f\u4e1c\u7701 |\n| 440600 | \u4f5b\u5c71\u5e02 | 440000 | \u5e7f\u4e1c\u7701 |\n| 440700 | \u6c5f\u95e8\u5e02 | 440000 | \u5e7f\u4e1c\u7701 |\n| 510100 | \u6210\u90fd\u5e02 | 510000 | \u56db\u5ddd\u7701 |\n| 510600 | \u5fb7\u9633\u5e02 | 510000 | \u56db\u5ddd\u7701 |\n| 510700 | \u7ef5\u9633\u5e02 | 510000 | \u56db\u5ddd\u7701 |\n| 510800 | \u5e7f\u5143\u5e02 | 510000 | \u56db\u5ddd\u7701 |\n| 610100 | \u897f\u5b89\u5e02 | 610000 | \u9655\u897f\u7701 |\n| 610200 | \u94dc\u5ddd\u5e02 | 610000 | \u9655\u897f\u7701 |\n| 610300 | \u5b9d\u9e21\u5e02 | 610000 | \u9655\u897f\u7701 |\n| 610400 | \u54b8\u9633\u5e02 | 610000 | \u9655\u897f\u7701 |\n+--------+-----------+--------+-----------+\n<\/code><\/pre>\n\u53ea\u67e5\u8be2\u6e56\u5317\u7701\uff1a<\/p>\n select c.id,c.title,c.pid,p.title from areas as c inner join areas as p on c.pid = p.id where p.title='\u6e56\u5317\u7701';\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n +--------+-----------+--------+-----------+\n| id | title | pid | title |\n+--------+-----------+--------+-----------+\n| 420100 | \u6b66\u6c49\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420500 | \u5b9c\u660c\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420600 | \u8944\u9633\u5e02 | 420000 | \u6e56\u5317\u7701 |\n| 420700 | \u9102\u5dde\u5e02 | 420000 | \u6e56\u5317\u7701 |\n+--------+-----------+--------+-----------+\n<\/code><\/pre>\n\u8bf4\u660e\uff1a\u81ea\u8fde\u63a5\u5fc5\u987b<\/font>\u5bf9\u8868\u8d77\u522b\u540d<\/strong><\/p>\n \u603b\u7ed3\uff1a<\/h4>\n\n\u81ea\u8fde\u63a5\u67e5\u8be2\u5c31\u662f\u628a\u4e00\u5f20\u8868\u6a21\u62df\u6210\u5de6\u53f3\u4e24\u5f20\u8868\uff0c\u7136\u540e\u8fdb\u884c\u8fde\u8868\u67e5\u8be2<\/li>\n \u81ea\u8fde\u63a5\u5c31\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u8fde\u63a5\u65b9\u5f0f\uff0c\u8fde\u63a5\u7684\u8868\u8fd8\u662f\u672c\u8eab\u8fd9\u5f20\u8868<\/li>\n<\/ul>\n7.\u5b50\u67e5\u8be2<\/h3>\n \u5b50\u67e5\u8be2\u7684\u4ecb\u7ecd<\/h4>\n\u5728\u4e00\u4e2aselect<\/code>\u8bed\u53e5\u4e2d\uff0c\u5d4c\u5165\u4e86\u53e6\u5916\u4e00\u4e2aselect<\/code>\u8bed\u53e5\uff0c\u90a3\u4e48\u88ab\u5d4c\u5165\u7684select<\/code>\u8bed\u53e5\u79f0\u4e4b\u4e3a\u5b50\u67e5\u8be2\u8bed\u53e5\uff0c\u5916\u90e8\u90a3\u4e2aselect<\/code>\u8bed\u53e5\u5219\u79f0\u4e3a\u4e3b\u67e5\u8be2<\/p>\n \u4e3b\u67e5\u8be2\u548c\u5b50\u67e5\u8be2\u7684\u5173\u7cfb\uff1a<\/strong><\/p>\n \n\u5b50\u67e5\u8be2\u662f\u5d4c\u5165\u5230\u4e3b\u67e5\u8be2\u4e2d<\/li>\n \u5b50\u67e5\u8be2\u662f\u8f85\u52a9\u4e3b\u67e5\u8be2\u7684\uff0c\u8981\u4e48\u5145\u5f53\u6761\u4ef6\uff0c\u8981\u4e48\u5145\u5f53\u6570\u636e\u6e90<\/li>\n \u5b50\u67e5\u8be2\u662f\u53ef\u4ee5\u72ec\u7acb\u5b58\u5728\u7684\u8bed\u53e5\uff0c\u662f\u4e00\u6761\u5b8c\u6574\u7684select<\/code>\u8bed\u53e5<\/li>\n<\/ol>\n\u5b50\u67e5\u8be2\u7684\u4f7f\u7528<\/h4>\n\u4f8b\uff1a<\/strong><\/p>\n \u67e5\u8be2\u5927\u4e8e\u5e73\u5747\u5e74\u9f84\u7684\u5b66\u751f<\/p>\n select * from students where age > (select avg(age) from students);\n<\/code><\/pre>\n\u67e5\u8be2\u5b66\u751f\u5728\u73ed\u7684\u6240\u6709\u73ed\u7ea7\u540d\u5b57<\/p>\n select * from classes where id in (select c_id from students where c_id is not null);\n<\/code><\/pre>\n\u67e5\u627e\u5e74\u9f84\u6700\u5927\uff0c\u8eab\u9ad8\u6700\u9ad8\u7684\u5b66\u751f<\/p>\n select * from students where (age, height) = (select max(age),max(height) from students);\n<\/code><\/pre>\n\u8bf4\u660e\uff1a\u5b50\u67e5\u8be2\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u5b50\u67e5\u8be2\u7684\u6267\u884c\u987a\u5e8f\uff0c\u5148\u6267\u884c\u5b50\u67e5\u8be2\u7136\u540e\u4e3b\u67e5\u8be2\u6839\u636e\u5b50\u67e5\u8be2\u7684\u7ed3\u679c\u518d\u6267\u884c<\/strong><\/p>\n \u6269\u5c55<\/h3>\n\u5ba2\u6237\u7aef\u8fde\u63a5MySQL\u6570\u636e\u5e93<\/h4>\n\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/p>\n vim \/etc\/mysql\/mysql.conf.d\/mysqld.cnf\n<\/code><\/pre>\n\u627e\u5230bind-address = 127.0.0.1<\/code>\u5c06\u5176\u6ce8\u91ca\u6389\u4fdd\u5b58\u5e76\u9000\u51fa:wq<\/code><\/p>\n \u767b\u5165MySQL\u6570\u636e\u5e93<\/h4>\nmysql -uroot -p\n<\/code><\/pre>\n\u7136\u540e<\/p>\n show databases;\n<\/code><\/pre>\n\u8fdb\u5165\u540d\u4e3amysql<\/code>\u7684\u6570\u636e\u5e93<\/p>\n use mysql;\nshow tables;\n<\/code><\/pre>\n\u67e5\u627euser<\/code>\u8868\u4e2d\u7684\u4fe1\u606f<\/p>\n select * from user G;\n<\/code><\/pre>\n\u5bfb\u627eUser: root<\/code>\u5b57\u6bb5<\/p>\n \u5c06User: root<\/code>\u5b57\u6bb5\u524d\u7684Host<\/code>\u6539\u5b8c%<\/code><\/p>\n update user set host = '%' where User='root';\n<\/code><\/pre>\n\u4fee\u6539\u5b8c\u6210\u9000\u51faMySQL<\/p>\n \u91cd\u65b0\u542f\u52a8MySQL\u670d\u52a1<\/p>\n sudo service mysql restart;\n<\/code><\/pre>\n\u7b49\u5f85\u542f\u52a8\u5b8c\u6210\u5c31\u53ef\u4f7f\u7528windows<\/code>\u670d\u52a1\u7aef\u8f6f\u4ef6Navicat<\/code>\u8fde\u63a5MySQL\u6570\u636e\u5e93<\/p>\n \u6ce8\uff1a<\/strong><\/font>\u5982\u679c\u51fa\u73b0\u4ee5\u4e0b\u62a5\u9519<\/p>\n <\/p>\n \u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n \u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/p>\n vim \/etc\/mysql\/mysql.conf.d\/mysqld.cnf \n<\/code><\/pre>\n\u4fee\u6539\u540e\uff0c\u5982\u4e0b\uff1a<\/p>\n bind-address = 0.0.0.0\nmysqlx-bind-address = 127.0.0.1\nmysqlx = 0\nport = 3306\n<\/code><\/pre>\n\u91cd\u542fMySQL\u670d\u52a1<\/p>\n service mysql restart\n<\/code><\/pre>\n\u4f7f\u7528\u4ee5\u4e0bSQL\u547d\u4ee4\u521b\u5efa\u6216\u66f4\u65b0\u7528\u6237\u6743\u9650\uff1a<\/p>\n -- \u5148\u5220\u9664\u65e7\u7684root@%\uff08\u907f\u514d\u51b2\u7a81\uff09\nDROP USER IF EXISTS 'root'@'%';\n-- \u5141\u8bb8\u6240\u6709 IP\nCREATE USER 'root'@'%' IDENTIFIED BY 'password';\n-- \u5982\u679c\u5df2\u5b58\u5728root@\u7279\u5b9aIP\uff0c\u4fee\u6539\u4e3a\u5141\u8bb8\u6240\u6709IP\uff08\u63a8\u8350\uff09\nALTER USER 'root'@'%' IDENTIFIED BY 'password';\n<\/code><\/pre>\n\npassword<\/code>\uff1a\u4fee\u6539\u6210\u5b9e\u9645\u7684\u5bc6\u7801<\/li>\n<\/ul>\n\u6388\u4e88\u6743\u9650\uff1a<\/p>\n -- \u5141\u8bb8\u6240\u6709 IP\n-- \u6388\u4e88\u6240\u6709\u6743\u9650\uff08\u6240\u6709\u5e93\u3001\u6240\u6709\u8868\uff09\uff0c\u5e76\u5141\u8bb8\u8be5\u8d26\u53f7\u7ed9\u5176\u4ed6\u7528\u6237\u6388\u6743\nGRANT ALL PRIVILEGES ON . TO 'root'@'%' WITH GRANT OPTION;\n<\/code><\/pre>\n\u5237\u65b0\u6743\u9650\uff1a<\/p>\n FLUSH PRIVILEGES;\n<\/code><\/pre>\n\u5373\u53ef\u89e3\u51b3<\/p>\n 8.\u6570\u636e\u5e93\u8bbe\u8ba1\u4e4b\u4e09\u8303\u5f0f<\/h3>\n \u6570\u636e\u5e93\u8bbe\u8ba1\u4e4b\u4e09\u8303\u5f0f\u7684\u4ecb\u7ecd<\/h4>\n\u8303\u5f0f\uff1a\u5bf9\u8bbe\u8ba1\u6570\u636e\u5e93\u63d0\u51fa\u4e00\u4e9b\u89c4\u8303\uff0c\u76ee\u524d\u6709\u8ff9\u53ef\u5faa\u7684\u5171\u67098\u79cd\u8303\u5f0f\uff0c\u4e00\u822c\u9075\u5faa3\u8303\u5f0f\u5373\u53ef<\/p>\n \n\u7b2c\u4e00\u8303\u5f0f(1NF)\uff1a\u5f3a\u8c03\u7684\u662f\u5217\u7684\u539f\u5b50\u6027\uff0c\u5373\u5217\u4e0d\u80fd\u591f\u518d\u5206\u6210\u5176\u4ed6\u51e0\u5217<\/li>\n \u7b2c\u4e8c\u8303\u5f0f(2NF)\uff1a\u6ee1\u8db31NF\uff0c\u53e6\u5916\u5305\u542b\u4e24\u90e8\u5206\u5185\u5bb9\uff0c\u4e00\u662f\u8868\u5fc5\u987b\u6709\u4e2a\u4e3b\u952e\uff1b\u4e8c\u662f\u975e\u4e3b\u952e\u5b57\u6bb5\u5fc5\u987b\u5b8c\u5168\u4f9d\u8d56\u4e8e\u4e3b\u952e\uff0c\u800c\u4e0d\u80fd\u53ea\u4f9d\u8d56\u4e8e\u4e3b\u952e\u7684\u4e00\u90e8\u5206<\/li>\n \u7b2c\u4e09\u8303\u5f0f(3NF)\uff1a\u6ee1\u8db32NF\uff0c\u53e6\u5916\u975e\u4e3b\u952e\u5217\u5fc5\u987b\u76f4\u63a5\u4f9d\u8d56\u4e8e\u4e3b\u952e\uff0c\u4e0d\u80fd\u5b58\u5728\u4f20\u9012\u4f9d\u8d56\u3002\u5373\u4e0d\u80fd\u5b58\u5728\u975e\u4e3b\u952e\u5217A\u4f9d\u8d56\u4e8e\u975e\u4e3b\u952e\u5217B\uff0c\u975e\u4e3b\u952e\u5217B\u4f9d\u8d56\u4e8e\u4e3b\u952e\u7684\u60c5\u51b5<\/li>\n<\/ul>\n\u7b2c\u4e00\u8303\u5f0f\u7684\u4ecb\u7ecd<\/h4>\n\u5982\u56fe\u6240\u793a\uff1a<\/strong><\/p>\n <\/p>\n \u8bf4\u660e\uff1a<\/p>\n \n\u8fd9\u79cd\u8868\u7684\u7ed3\u679c\u8bbe\u8ba1\u5c31\u6ca1\u6709\u8fbe\u52301NF\uff0c\u8981\u7b26\u54081NF\u6211\u4eec\u53ea\u9700\u8981\u628a\u5217\u62c6\u5206\uff0c\u5373\uff1a\u628acontact<\/code>\u5b57\u6bb5\u62c6\u5206\u6210name<\/code>\u3001tel<\/code>\u3001addr<\/code>\u7b49\u5b57\u6bb5<\/li>\n<\/ul>\n\u7b2c\u4e8c\u8303\u5f0f\u7684\u4ecb\u7ecd<\/h4>\n\u5982\u56fe\u6240\u793a\uff1a<\/strong><\/p>\n <\/p>\n \n\u8fd9\u79cd\u8868\u7ed3\u6784\u8bbe\u8ba1\u5c31\u6ca1\u6709\u8fbe\u5230 2NF\uff0c\u56e0\u4e3a Discount(\u6298\u6263)\uff0cQuantity(\u6570\u91cf)\u5b8c\u5168\u4f9d\u8d56\u4e8e\u4e3b\u952e(OrderlD)\uff0c\u800c UnitPrice\u5355\u4ef7\uff0cProductName\u4ea7\u54c1\u540d\u79f0\u53ea\u4f9d\u8d56\u4e8e ProductlD\uff0c\u6240\u4ee5 OrderDetail\u8868\u4e0d\u7b26\u5408 2NF\u3002<\/li>\n \u6211\u4eec\u53ef\u4ee5\u628a\u3010OrderDetail\u3011\u8868\u62c6\u5206\u4e3a\u3010OrderDetail\u3011(OrderlD\uff0cProductlD,Discount\uff0cQuantity)\u548c\u3010Product\u3011(ProductlD\uff0cUnitPrice\uff0cProductName)\u8fd9\u6837\u5c31\u7b26\u5408\u7b2c\u4e8c\u8303\u5f0f\u4e86\u3002<\/li>\n<\/ul>\n\u7b2c\u4e09\u8303\u5f0f\u7684\u4ecb\u7ecd<\/h4>\n\u5982\u56fe\u6240\u793a\uff1a<\/strong><\/p>\n <\/p>\n \u8bf4\u660e\uff1a<\/p>\n \n\u8fd9\u79cd\u8868\u7ed3\u6784\u8bbe\u8ba1\u5c31\u6ca1\u6709\u8fbe\u5230 3NF\uff0c\u56e0\u4e3a OrderDate\uff0cCustomerlD\uff0cCustomerNameCustomerAddr\uff0cCustomerCity \u7b49\u975e\u4e3b\u952e\u5217\u90fd\u5b8c\u5168\u4f9d\u8d56\u4e8e\u4e3b\u952e(OrderlD)\uff0c\u6240\u4ee5\u7b26\u5408 2NF\u3002\u4e0d\u8fc7\u95ee\u9898\u662f CustomerName\uff0cCustomerAddr\uff0cCustomerCity\u76f4\u63a5\u4f9d\u8d56\u7684\u662f CustomerlD(\u975e\u4e3b\u952e\u5217)\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4f9d\u8d56\u4e8e\u4e3b\u952e\uff0c\u5b83\u662f\u901a\u8fc7\u4f20\u9012\u624d\u4f9d\u8d56\u4e8e\u4e3b\u952e\uff0c\u6240\u4ee5\u4e0d\u7b26\u5408 3NF\u3002<\/li>\n \u6211\u4eec\u53ef\u4ee5\u628a\u3010Order\u3011\u8868\u62c6\u5206\u4e3a\u3010Order\u3011(OrderlD,OrderDate\uff0cCustomerlD)\u548c\u3010Customer\u3011(CustomerlD\uff0cCustomerName\uff0cCustomerAddr\uff0cCustomerCity)\u4ece\u800c\u8fbe\u5230 3NF \u3002<\/li>\n<\/ul>\nE-R\u6a21\u578b\u7684\u4ecb\u7ecd<\/h4>\nE-R\u6a21\u578b\u5373\u5b9e\u4f53-\u5173\u7cfb\u6a21\u578b\uff0cE-R\u6a21\u578b\u5c31\u662f\u63cf\u8ff0\u6570\u636e\u5e93\u5b58\u50a8\u6570\u636e\u7684\u7ed3\u6784\u6a21\u578b<\/p>\n E-R\u6a21\u578b\u7684\u4f7f\u7528\u573a\u666f<\/strong><\/p>\n \n\u5bf9\u4e8e\u5927\u578b\u516c\u53f8\u5f00\u53d1\u9879\u76ee\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u4ea7\u54c1\u7ecf\u7406\u7684\u8bbe\u8ba1\uff0c\u6211\u4eec\u5148\u4f7f\u7528\u5efa\u6a21\u5de5\u5177\uff0c\u5982\uff1apower designer<\/code>\u3001db desinger<\/code>\u7b49\u8fd9\u4e9b\u8f6f\u4ef6\u6765\u753b\u51fa\u5b9e\u4f53-\u5173\u7cfb\u6a21\u578b(E-R\u6a21\u578b)<\/li>\n \u7136\u540e\u6839\u636e\u4e09\u8303\u5f0f\u8bbe\u8ba1\u6570\u636e\u5e93\u8868\u7ed3\u6784<\/li>\n<\/ol>\nE-R\u6a21\u578b\u6548\u679c\u56fe\uff1a<\/strong><\/p>\n <\/p>\n \u8bf4\u660e\uff1a<\/strong><\/p>\n \n\n\u5b9e\u4f53\uff1a\u7528\u77e9\u5f62\u8868\u793a\uff0c\u5e76\u6807\u6ce8\u5b9e\u4f53\u540d\u79f0<\/p>\n<\/li>\n \n\u5c5e\u6027\uff1a\u7528\u692d\u5706\u8868\u793a\uff1a\u5e76\u6807\u6ce8\u5c5e\u6027\u540d\u79f0<\/p>\n<\/li>\n \n\u5173\u7cfb\uff1a\u7528\u83f1\u5f62\u8868\u793a\uff0c\u5e76\u6807\u6ce8\u5173\u7cfb\u540d\u79f0<\/p>\n \n\n\u4e00\u5bf9\u4e00<\/p>\n <\/p>\n \n\u5173\u7cfb\u4e5f\u662f\u4e00\u79cd\u6570\u636e\uff0c\u9700\u8981\u901a\u8fc7\u4e00\u4e2a\u5b57\u6bb5\u50a8\u5b58\u5728\u8868\u4e2d<\/li>\n 1\u5bf91\u5173\u7cfb\uff0c\u5728\u8868A\u6216\u8868B\u4e2d\u521b\u5efa\u4e00\u4e2a\u5b57\u6bb5\uff0c\u5b58\u50a8\u53e6\u4e00\u4e2a\u8868\u7684\u4e3b\u952e\u503c<\/li>\n<\/ul>\n<\/li>\n \n\u4e00\u5bf9\u591a<\/p>\n <\/p>\n \n1\u5bf9\u591a\u5173\u7cfb\uff0c\u8868\u4e2d\u521b\u5efa\u4e00\u4e2a\u5b57\u6bb5\uff0c\u50a8\u5b58\u73ed\u7ea7\u8868\u7684\u4e3b\u952e\u503c<\/li>\n<\/ul>\n<\/li>\n \n\u591a\u5bf9\u591a<\/p>\n <\/p>\n \n\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u65b0\u5efa\u4e00\u5f20\u8868C\uff0c\u8fd9\u4e2a\u8868\u53ea\u6709\u4e24\u4e2a\u5b57\u6bb5\uff0c\u4e00\u4e2a\u7528\u4e8e\u5b58\u50a8A\u7684\u4e3b\u952e\u503c\uff0c\u4e00\u4e2a\u7528\u4e8e\u5b58\u50a8B\u7684\u4e3b\u952e\u503c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n9.\u5916\u952e\u7ea6\u675fSQL\u8bed\u53e5\u7684\u7f16\u5199<\/h3>\n \u5916\u952e\u7ea6\u675f\u4f5c\u7528<\/h4>\n\u5916\u952e\u7ea6\u675f\uff1a\u5bf9\u5916\u952e\u5b57\u6bb5\u7684\u503c\u8fdb\u884c\u66f4\u65b0\u548c\u63d2\u5165\u65f6\u4f1a\u548c\u5f15\u7528\u8868\u4e2d\u5b57\u6bb5\u7684\u6570\u636e\u8fdb\u884c\u9a8c\u8bc1\uff0c\u6570\u636e\u5982\u679c\u4e0d\u5408\u6cd5\u5219\u66f4\u65b0\u548c\u63d2\u5165\u4f1a\u5931\u8d25\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u6709\u6548\u6027<\/p>\n \u5bf9\u4e8e\u5df2\u7ecf\u5b58\u5728\u7684\u5b57\u6bb5\u6dfb\u52a0\u5916\u952e\u7ea6\u675f<\/h4>\n\u4e3ac_id<\/code>\u5b57\u6bb5\u6dfb\u52a0\u5916\u952e\u7ea6\u675f<\/p>\n alter table students add foreign key(c_id) references classes(id);\n<\/code><\/pre>\n\u5728\u521b\u5efa\u6570\u636e\u8868\u65f6\u6570\u8bbe\u7f6e\u5916\u952e\u7ea6\u675f<\/h4>\n\u67e5\u770b\u5916\u952e\u7ea6\u675f<\/p>\n show create table teacher;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n | teacher | CREATE TABLE `teacher` (\n `id` int unsigned NOT NULL AUTO_INCREMENT,\n `name` varchar(10) NOT NULL,\n `s_id` int unsigned DEFAULT NULL,\n PRIMARY KEY (`id`),\n KEY `s_id` (`s_id`),\n CONSTRAINT `teacher_ibfk_1` FOREIGN KEY (`s_id`) REFERENCES `school` (`id`)\n) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb3 |\n<\/code><\/pre>\nteacher_ibfk_1<\/code>\uff1a\u5916\u952e\u7ea6\u675f\u7684\u540d\u79f0<\/p>\n \u521b\u5efa\u5b66\u751f\u8868<\/p>\n create table school(id int unsigned not null primary key auto_increment, name varchar(30)) not null);\n<\/code><\/pre>\n\u521b\u5efa\u8001\u5e08\u8868<\/p>\n create table teacher(id int unsigned not null primary key auto_increment, name varchar(10) not null, s_id int unsigned, foreign key(s_id) references school(id));\n<\/code><\/pre>\n\u5220\u9664\u5916\u952e\u7ea6\u675f<\/h4>\nalter table teacher drop foreign key teacher_ibfk_1;\n<\/code><\/pre>\n10.\u6f14\u7ec3-\u5206\u7ec4\u548c\u805a\u5408\u51fd\u6570\u7684\u7ec4\u5408\u4f7f\u7528<\/h3>\n \u6570\u636e\u51c6\u5907\uff1a<\/h4>\n-- \u521b\u5efa\u4eac\u4e1c\u6570\u636e\u5e93\ncreate database jing_dong charset=utf8;\n\n-- \u4f7f\u7528\u4eac\u4e1c\u6570\u636e\u5e93\nuse jing_dong;\n\n-- \u521b\u5efa\u4e00\u4e2a\u5546\u54c1 goodS \u6570\u636e\u8868\ncreate table goods(id int unsigned primary key auto_increment not null, name varchar(150) not null, cate_name varchar(40) not null, brand_name varchar(40) not null, price decimal(10,3) not null default 0, is_show bit not null default 1, is_saleoff bit not null default 0);\n\n-- \u5411goods\u8868\u4e2d\u63d2\u5165\u6570\u636e\ninsert into goods values(0,'r7000p 15.6\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u8054\u60f3','7999',1,1);\ninsert into goods values(0,'matebook 14\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u534e\u4e3a','5499',1,1);\ninsert into goods values(0,'xps13 13.3\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u6234\u5c14','8999',1,1);\ninsert into goods values(0,'\u62ef\u6551\u8005y9000x 16\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u8054\u60f3','9999',1,1);\ninsert into goods values(0,'macbook air 13.6\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u82f9\u679c','7999',1,1);\ninsert into goods values(0,'pro16 16\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u534e\u7855','6299',1,1);\ninsert into goods values(0,'zenbook 14 14\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u534e\u7855','5799',1,1);\ninsert into goods values(0,'surface pro 12.3\u82f1\u5bf8\u5e73\u677f','\u5e73\u677f\u7535\u8111','\u5fae\u8f6f','6888',1,1);\ninsert into goods values(0,'g3 15.6\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u6234\u5c14','6499',1,1);\ninsert into goods values(0,'magicbook 15.6\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u8363\u8000','4299',1,1);\ninsert into goods values(0,'rog\u5e7b16 16\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u534e\u7855','12999',1,1);\ninsert into goods values(0,'thinkpad x1 14\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u8054\u60f3','11999',1,1);\ninsert into goods values(0,'ipad pro 11\u82f1\u5bf8\u5e73\u677f\u7535\u8111','\u5e73\u677f\u7535\u8111','\u82f9\u679c','6799',1,1);\ninsert into goods values(0,'redmi book 14\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u5c0f\u7c73','3899',1,1);\ninsert into goods values(0,'alienware m15 15.6\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u6234\u5c14','15999',1,1);\ninsert into goods values(0,'matepad pro 11\u82f1\u5bf8\u5e73\u677f','\u5e73\u677f\u7535\u8111','\u534e\u4e3a','3999',1,1);\ninsert into goods values(0,'vaio sx14 14\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u7d22\u5c3c','8499',1,1);\ninsert into goods values(0,'\u6697\u5f71\u7cbe\u70759 16.1\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u60e0\u666e','7299',1,1);\ninsert into goods values(0,'\u5c0f\u65b0air14 14\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u8054\u60f3','4599',1,1);\ninsert into goods values(0,'galaxy book2 15.6\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u4e09\u661f','5199',1,1);\ninsert into goods values(0,'yoga pro14s 14.5\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u8054\u60f3','8699',1,1);\ninsert into goods values(0,'ipad air 10.9\u82f1\u5bf8\u5e73\u677f\u7535\u8111','\u5e73\u677f\u7535\u8111','\u82f9\u679c','4799',1,1);\ninsert into goods values(0,'\u673a\u68b0\u9769\u547d\u86df\u9f9916 16\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u673a\u68b0\u9769\u547d','6999',1,1);\ninsert into goods values(0,'\u7075\u800014 14\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u534e\u7855','5999',1,1);\ninsert into goods values(0,'\u7545\u4eab\u5e73\u677f2 10.1\u82f1\u5bf8\u5e73\u677f','\u5e73\u677f\u7535\u8111','\u534e\u4e3a','1299',1,1);\ninsert into goods values(0,'\u6e38\u5323g15 15.6\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u6234\u5c14','6799',1,1);\ninsert into goods values(0,'\u9ea6\u672c\u672c\u91d1\u9ea66 13.3\u82f1\u5bf8\u7b14\u8bb0\u672c','\u7b14\u8bb0\u672c','\u9ea6\u672c\u672c','2999',1,1);\ninsert into goods values(0,'surface laptop go2 12.4\u82f1\u5bf8\u8d85\u7ea7\u672c','\u8d85\u7ea7\u672c','\u5fae\u8f6f','4599',1,1);\ninsert into goods values(0,'\u771f\u6211\u5e73\u677fx 11\u82f1\u5bf8\u5e73\u677f\u7535\u8111','\u5e73\u677f\u7535\u8111','\u771f\u6211','1899',1,1);\ninsert into goods values(0,'\u96f7\u795e911\u661f\u6218 15.6\u82f1\u5bf8\u6e38\u620f\u672c','\u6e38\u620f\u672c','\u96f7\u795e','6399',1,1);\n<\/code><\/pre>\n\u8868\u7ed3\u6784\u8bf4\u660e\uff1a<\/strong><\/p>\n \nid<\/code>\uff1a\u8868\u793a\u4e3b\u952e \u81ea\u589e<\/li>\n name<\/code>\uff1a\u8868\u793a\u5546\u54c1\u540d\u79f0<\/li>\n cate_name<\/code>\uff1a\u8868\u793a\u5206\u7c7b\u540d\u79f0<\/li>\n brand_name<\/code>\uff1a\u8868\u793a\u54c1\u724c\u540d\u79f0<\/li>\n price<\/code>\uff1a\u8868\u793a\u4ef7\u683c<\/li>\n is_show<\/code>\uff1a\u8868\u793a\u662f\u5426\u663e\u793a<\/li>\n is_saleoff<\/code>\uff1a\u8868\u793a\u662f\u7684\u552e\u5b8c<\/li>\n<\/ul>\nSQL\u8bed\u53e5\u6f14\u7ec3<\/h4>\n\n\n\u67e5\u8be2\u7c7b\u578bcate_name<\/code>\u4e3a\u201c\u8d85\u7ea7\u672c\u201d\u7684\u5546\u54c1\u540d\u79f0\u3001\u4ef7\u683c<\/p>\n select name,price from goods where cate_name='\u8d85\u7ea7\u672c';\n<\/code><\/pre>\n<\/li>\n\n\u663e\u793a\u5546\u54c1\u7684\u5206\u7c7b<\/p>\n select distinct cate_name from goods;\nselect cate_name from goods group by cate_name;\n<\/code><\/pre>\n<\/li>\n\n\u6c42\u6240\u6709\u7535\u8111\u4ea7\u54c1\u7684\u5e73\u5747\u4ef7\u683c\uff0c\u5e76\u4fdd\u7559\u4e24\u4f4d\u6570<\/p>\n select round(avg(price),2) from goods;\n<\/code><\/pre>\n<\/li>\n\n\u663e\u793a\u6bcf\u79cd\u5546\u54c1\u7684\u5e73\u5747\u4ef7\u683c<\/p>\n select cate_name, avg(price) from goods group by cate_name;\n-- \u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\nselect cate_name, round(avg(price),2) from goods group by cate_name;\n<\/code><\/pre>\n<\/li>\n\n\u67e5\u8be2\u6bcf\u79cd\u7c7b\u578b\u7684\u5546\u54c1\u4e2d\uff0c\u6700\u8d35\u3001\u6700\u4fbf\u5b9c\u3001\u5e73\u5747\u4ef7\u3001\u6570\u91cf<\/p>\n select cate_name, max(price), min(price), avg(price),count() from goods group by cate_name;\n<\/code><\/pre>\n<\/li>\n\n\u67e5\u8be2\u6240\u6709\u4ef7\u683c\u5927\u4e8e\u5e73\u5747\u4ef7\u683c\u7684\u5546\u54c1\uff0c\u5e76\u6309\u4ef7\u683c\u964d\u5e8f\u6392\u5e8f<\/p>\n select from goods where price>(select avg(price) from goods) order by price desc;\n<\/code><\/pre>\n<\/li>\n<\/ol>\n\u4e8c\u5341\u4e09\u3001MySQL\u6570\u636e\u5e93\u7684\u9ad8\u7ea7\u4f7f\u7528<\/h2>\n 1.\u5c06\u67e5\u8be2\u7ed3\u679c\u63d2\u5165\u5230\u5176\u4ed6\u8868\u4e2d<\/h3>\n \u521b\u5efa\u5546\u54c1\u5206\u7c7b\u8868<\/h4>\ncreate table good_cates(id int unsigned not null primary key auto_increment, name varchar(50) not null);\n<\/code><\/pre>\n\u67e5\u8be2goods<\/code>\u8868\u4e2d\u5546\u54c1\u7684\u5206\u7c7b\u4fe1\u606f<\/h4>\nselect cate_name from goods group by cate_name;\n<\/code><\/pre>\n\u5c06\u67e5\u8be2\u7ed3\u679c\u63d2\u5165\u5230good_cates<\/code>\u8868\u4e2d<\/h4>\ninsert into good_cates(name) select cate_name from goods group by cate_name;\n<\/code><\/pre>\n\u6dfb\u52a0\u79fb\u52a8\u8bbe\u5907\u5206\u7c7b\u4fe1\u606f<\/h4>\ninsert into good_cates(name) values('\u79fb\u52a8\u8bbe\u5907');\n<\/code><\/pre>\n2.\u4f7f\u7528\u8fde\u63a5\u66f4\u65b0\u8868\u4e2d\u7684\u67d0\u4e2a\u5b57\u6bb5\u6570\u636e<\/h3>\n \u67e5\u770bgoods<\/code>\u8868\u4e2d\u5546\u54c1\u5206\u7c7b\u540d\u79f0\u5bf9\u5e94\u7684\u5546\u54c1\u5206\u7c7bid<\/h4>\nselect g.cate_name, gs.id from goods as g inner join good_cates as gs on g.cate_name=gs.name;\n<\/code><\/pre>\n\u5c06goods<\/code>\u8868\u4e2d\u7684\u5206\u7c7b\u540d\u79f0\u66f4\u6539\u6210\u5546\u54c1\u5206\u7c7b\u8868\u4e2d\u5bf9\u5e94\u7684\u5206\u7c7bid<\/code>\uff0c\u8fde\u63a5\u66f4\u65b0\u8868\u4e2d\u7684\u67d0\u4e2a\u5b57\u6bb5<\/h4>\nupdate goods as g inner join good_cates as gs on g.cate_name=gs.name set g.cate_name =gs.id;\n<\/code><\/pre>\n3.\u521b\u5efa\u5e76\u7ed9\u67d0\u4e2a\u5b57\u6bb5\u6dfb\u52a0\u6570\u636e<\/h3>\n \u521b\u5efa\u54c1\u724c\u8868<\/h4>\n\u67e5\u8be2\u54c1\u724c\u4fe1\u606f<\/p>\n select brand_name from goods group by brand_name;\n<\/code><\/pre>\n\u901a\u8fc7create table ... select<\/code>\u6765\u521b\u5efa\u6570\u636e\u8868\u5e76\u4e14\u540c\u65f6\u63d2\u5165\u6570\u636e<\/p>\n \u521b\u5efa\u5546\u54c1\u5206\u7c7b\u8868\uff0c\u6ce8\uff1a<\/strong><\/font>\u9700\u8981\u5bf9brand_name<\/code>\u7528as<\/code>\u53d6\u522b\u540d\uff0c\u5426\u5219name<\/code>\u5b57\u6bb5\u5c31\u6ca1\u6709\u503c<\/p>\n create table good_brands(id int unsigned primary key auto_increment, name varchar(40) not null) select brand_name as name from goods group by brand_name;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \ncreate table ... select \u5217\u540d ..<\/code>\uff1a\u8868\u793a\u521b\u5efa\u8868\u5e76\u63d2\u5165\u6570\u636e<\/li>\n<\/ul>\n\u66f4\u65b0goods<\/code>\u8868\u4e2d\u7684\u54c1\u724c\u4fe1\u606f<\/h4>\n\u5c06goods<\/code>\u8868\u4e2d\u7684\u54c1\u724c\u540d\u79f0\u66f4\u6539\u6210\u54c1\u724c\u8868\u4e2d\u5bf9\u5e94\u7684\u54c1\u724cid<\/p>\n update goods as g inner join good_brands as gb on g.brand_name = gb.name set g.brand_name = gb.id;\n<\/code><\/pre>\n4.\u4fee\u6539goods<\/code>\u8868\u7ed3\u6784<\/h3>\n\u4fee\u6539goods<\/code>\u8868\u7ed3\u6784<\/h4>\n\u76ee\u524d\u6211\u4eec\u5df2\u7ecf\u628a goods \u8868\u4e2d\u7684\u5546\u54c1\u5206\u7c7b\u548c\u54c1\u724c\u4fe1\u606f\u5df2\u7ecf\u66f4\u6539\u6210\u4e86\u5546\u54c1\u5206\u7c7b id \u548c\u54c1\u724c id\uff0c\u63a5\u4e0b\u6765\u9700\u8981\u628a cate_name \u548c brand name \u5b57\u6bb5\u5206\u522b\u6539\u6210 cate_id \u548c brand id \u5b57\u6bb5\uff0c\u7c7b\u578b\u90fd\u6539\u6210int\u7c7b\u578b<\/p>\n \u67e5\u770b\u8868\u7ed3\u6784<\/p>\n desc goods;\n<\/code><\/pre>\n\u901a\u8fc7alter table<\/code>\u8bed\u53e5\u4fee\u6539\u8868\u7ed3\u6784<\/p>\n alter table goods change cate_name cate_id int not null, change brand_name brand_id int not null;\n<\/code><\/pre>\n5.PyMySQL\u7684\u4f7f\u7528<\/h3>\n Python\u7a0b\u5e8f\u64cd\u4f5cMySQL\u6570\u636e\u5e93<\/h4>\n\u5b89\u88c5pymysql<\/code>\u7b2c\u4e09\u65b9\u5305<\/p>\n pip install pymysql\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u5b89\u88c5\u547d\u4ee4\u4f7f\u7528\uff1apip install \u7b2c\u4e09\u65b9\u5305\u540d<\/code><\/li>\n \u5378\u8f7d\u547d\u4ee4\u4f7f\u7528\uff1apip uninstall \u7b2c\u4e09\u65b9\u5305<\/code><\/li>\n<\/ul>\npymysql\u7684\u4f7f\u7528<\/h4>\n\n\n\u5bfc\u5165 pymysql \u5305<\/p>\n import pymysql\n<\/code><\/pre>\n<\/li>\n\n\u521b\u5efa\u8fde\u63a5\u5bf9\u8c61<\/p>\n \u8c03\u7528 pymysql \u6a21\u5757\u4e2d\u7684connect()<\/code>\u51fd\u6570\u6765\u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n conn = connect(\u53c2\u6570\u5217\u8868)\n<\/code><\/pre>\n\u53c2\u6570\u8bf4\u660e\uff1a<\/strong><\/p>\n \nhost<\/code>\uff1a\u8fde\u63a5\u7684MySQL\u4e3b\u673a\uff0c\u5982\u672c\u673a\u662flocalhost<\/code><\/li>\n port<\/code>\uff1a\u8fde\u63a5\u7684MySQL\u4e3b\u673a\u7684\u7aef\u53e3\uff0c\u9ed8\u8ba4\u662f 3306<\/li>\n user<\/code>\uff1a\u8fde\u63a5\u7684\u7528\u6237\u540d<\/li>\n password<\/code>\uff1a\u8fde\u63a5\u7684\u5bc6\u7801<\/li>\n detabase<\/code>\uff1a\u6570\u636e\u5e93\u7684\u540d\u79f0<\/li>\n charset<\/code>\uff1a\u91c7\u7528\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u63a8\u8350\u4f7f\u7528utf8<\/code><\/li>\n<\/ul>\n\u8fde\u63a5\u5bf9\u8c61\u64cd\u4f5c\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u5173\u95ed\u8fde\u63a5\uff1aconn.close()<\/code><\/li>\n \u63d0\u4ea4\u6570\u636e\uff1aconn.commit()<\/code><\/li>\n \u64a4\u9500\u6570\u636e\uff1aconn.rollback()<\/code><\/li>\n<\/ul>\n<\/li>\n \n\u83b7\u53d6\u6e38\u6807\u5bf9\u8c61<\/p>\n \u83b7\u53d6\u6e38\u6807\u5bf9\u8c61\u7684\u76ee\u6807\u5c31\u662f\u8981\u6267\u884cSQL\u8bed\u53e5\uff0c\u5b8c\u6210\u5bf9\u6570\u636e\u7684\u589e\u5220\u6539\u67e5\u64cd\u4f5c<\/p>\n cursor = conn.cursor()\n<\/code><\/pre>\n\u6e38\u6807\u64cd\u4f5c\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u4f7f\u7528\u6e38\u6807\u6267\u884cSQL\u8bed\u53e5\uff1a.execute()<\/code>\u6267\u884cSQL\u8bed\u53e5\uff0c\u8fd4\u56de\u53d7\u5f71\u54cd\u7684\u884c\u6570\uff0c\u4e3b\u8981\u7528\u4e8e\u6267\u884cinsert<\/code>\u3001update<\/code>\u3001delete<\/code>\u3001select<\/code>\u7b49\u8bed\u53e5<\/li>\n \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u96c6\u4e2d\u7684\u4e00\u6761\u6570\u636e\uff1a.fetchone()<\/code>\u8fd4\u56de\u4e00\u4e2a\u5143\u7ec4\uff0c\u5982\uff1a(1,'\u5f20\u4e09',...)<\/code><\/li>\n \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u96c6\u4e2d\u7684\u6240\u6709\u6570\u636e\uff1a.fetchall()<\/code>\u8fd4\u56de\u4e00\u4e2a\u5143\u7ec4\uff0c\u5982\uff1a((1,'\u5f20\u4e09',...),(2,'\u674e\u56db',...),...)<\/code><\/li>\n \u5173\u95ed\u6e38\u6807\uff1a.close()<\/code>\u8868\u793a\u548c\u6570\u636e\u5e93\u64cd\u4f5c\u5b8c\u6210<\/li>\n<\/ul>\n<\/li>\n \npymysql\u5b8c\u6210\u6570\u636e\u7684\u67e5\u8be2\u64cd\u4f5c<\/p>\n # \u5bfc\u5165\u5305\nimport pymysql\n\nif name == 'main':\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host = '192.168.10.128',\n port = 3306,\n user = 'root',\n passwd = 'mysql',\n database = 'python1',\n charset = 'utf8'\n )\n\n # \u83b7\u53d6\u6e38\u6807\uff0c\u76ee\u7684\u662f\u6267\u884csql\u8bed\u53e5\n cursor = conn.cursor()\n\n # \u51c6\u5907sql\u8bed\u53e5\n sql = "select * from students;"\n # \u6267\u884csql\u8bed\u53e5\n cursor.execute(sql)\n\n # \u83b7\u53d6\u7ed3\u679c\uff0c\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u5143\u7ec4\u7c7b\u578b\n # \u83b7\u53d6\u4e00\u6761\n row = cursor.fetchone()\n # \u83b7\u53d6\u591a\u6761\n # row = cursor.fetchall()\n print(row)\n\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n<\/code><\/pre>\n<\/li>\n\npymysql\u5b8c\u6210\u5bf9\u6570\u636e\u7684\u589e\u5220\u6539<\/p>\n # \u5bfc\u5165\u5305\nimport pymysql\n\nif name == 'main':\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host = '192.168.10.128',\n port = 3306,\n user = 'root',\n passwd = 'mysql',\n database = 'python1',\n charset = 'utf8'\n )\n\n # \u83b7\u53d6\u6e38\u6807\uff0c\u76ee\u7684\u662f\u6267\u884csql\u8bed\u53e5\n cursor = conn.cursor()\n\n # \u51c6\u5907sql\u8bed\u53e5\n # \u5bf9\u6570\u636e\u8868\u5b8c\u6210\u6dfb\u52a0\u3001\u5220\u9664\u3001\u4fee\u6539\u64cd\u4f5c\uff0c\u9700\u8981\u628a\u4fee\u6539\u7684\u6570\u636e\u63d0\u4ea4\u5230\u6570\u636e\u5e93\n # \u6dfb\u52a0\u6570\u636e\n # sql = "insert into classes(name) values('\u5965\u6570');"\n # \u4fee\u6539\u6570\u636e\n # sql = "update classes set name = '\u4eba\u5de5\u667a\u80fd' where id = 5;"\n # \u5220\u9664\u6570\u636e\n sql = "delete from classes where id = 5;"\n\n try:\n # \u6267\u884csql\u8bed\u53e5\n cursor.execute(sql)\n # \u63d0\u4ea4\u4fee\u6539\u7684\u6570\u636e\u5230\u6570\u636e\u5e93\n conn.commit()\n except Exception as e:\n # \u5bf9\u4fee\u6539\u7684\u6570\u636e\u8fdb\u884c\u64a4\u9500\n conn.rollback()\n finally:\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n<\/code><\/pre>\n<\/li>\n\n\u9632\u6b62SQL\u6ce8\u5165<\/p>\n \u4ec0\u4e48\u662fSQL\u6ce8\u5165<\/p>\n \u7528\u6237\u63d0\u4ea4\u5e26\u6709\u6076\u610f\u7684\u6570\u636e\u4e0eSQL\u8bed\u53e5\u8fdb\u884c\u5b57\u7b26\u4e32\u65b9\u5f0f\u7684\u62fc\u63a5\uff0c\u4ece\u800c\u5f71\u54cd\u4e86SQL\u8bed\u53e5\u7684\u8bed\u4e49\uff0c\u6700\u7ec8\u4ea7\u751f\u6570\u636e\u6cc4\u9732\u7684\u73b0\u8c61<\/p>\n SQL\u8bed\u53e5\u53c2\u6570\u5316<\/p>\n \nSQL\u8bed\u8a00\u4e2d\u7684\u53c2\u6570\u4f7f\u7528%s<\/code>\u6765\u5360\u4f4d\uff0c\u6b64\u5904\u4e0d\u662f Python \u4e2d\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u64cd\u4f5c<\/li>\n \u5c06SQL\u8bed\u53e5\u4e2d\u7684%s<\/code>\u5360\u4f4d\u6240\u9700\u8981\u7684\u53c2\u6570\u5b58\u5728\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u628a\u53c2\u6570\u5217\u8868\u4f20\u9012\u7ed9execute<\/code>\u65b9\u6cd5\u4e2d\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570<\/li>\n<\/ul>\n\u793a\u4f8b\uff1a<\/p>\n # \u5bfc\u5165\u5305\nimport pymysql\n\nif name == 'main':\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host = '192.168.10.128',\n port = 3306,\n user = 'root',\n passwd = 'mysql',\n database = 'python1',\n charset = 'utf8'\n )\n\n # \u83b7\u53d6\u6e38\u6807\uff0c\u76ee\u7684\u662f\u6267\u884csql\u8bed\u53e5\n cursor = conn.cursor()\n\n # \u51c6\u5907sql\u8bed\u53e5\uff0c\u4f7f\u7528\u9632\u6b62SQL\u6ce8\u5165\u7684SQL\u8bed\u53e5\uff0c%s\u662fSQL\u8bed\u53e5\u7684\u53c2\u6570\uff0c\u4e0d\u8981\u52a0\u5f15\u53f7\n sql = "select * from students where name= %s;"\n # \u6267\u884csql\u8bed\u53e5\n cursor.execute(sql,('\u718a\u5927',))\n\n # \u83b7\u53d6\u7ed3\u679c\uff0c\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u5143\u7ec4\u7c7b\u578b\n # \u83b7\u53d6\u4e00\u6761\n row = cursor.fetchone()\n # \u83b7\u53d6\u591a\u6761\n # row = cursor.fetchall()\n print(row)\n\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n<\/code><\/pre>\n<\/li>\n\n\u591a\u4e2a\u53c2\u6570\u5360\u4f4d\u7b26\u5199\u6cd5<\/p>\n # \u5bfc\u5165\u5305\nimport pymysql\n\nif name == 'main':\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host = '192.168.10.128',\n port = 3306,\n user = 'root',\n passwd = 'mysql',\n database = 'python1',\n charset = 'utf8'\n )\n\n # \u83b7\u53d6\u6e38\u6807\uff0c\u76ee\u7684\u662f\u6267\u884csql\u8bed\u53e5\n cursor = conn.cursor()\n\n # \u51c6\u5907sql\u8bed\u53e5\n sql = "insert into students(name,age,gender,c_id) values(%s,%s,%s,%s);"\n\n try:\n # \u6267\u884csql\u8bed\u53e5\n cursor.execute(sql,['\u738b\u662d\u541b', 20, '\u5973',3])\n # \u63d0\u4ea4\u4fee\u6539\u7684\u6570\u636e\u5230\u6570\u636e\u5e93\n conn.commit()\n except Exception as e:\n # \u5bf9\u4fee\u6539\u7684\u6570\u636e\u8fdb\u884c\u64a4\u9500\n conn.rollback()\n finally:\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n<\/code><\/pre>\n<\/li>\n<\/ol>\n6.\u4e8b\u52a1<\/h3>\n\u4e8b\u52a1\u5c31\u662f\u7528\u6237\u5b9a\u4e49\u7684\u4e00\u7cfb\u5217\u6267\u884cSQL\u8bed\u53e5\u7684\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u8981\u4e48\u5b8c\u5168\u5730\u6267\u884c\uff0c\u8981\u4e48\u5b8c\u5168\u5730\u90fd\u4e0d\u6267\u884c\uff0c\u5b83\u662f\u4e00\u4e2a\u4e0d\u53ef\u5206\u5272\u7684\u5de5\u4f5c\u6267\u884c\u5355\u5143<\/p>\n \u4e8b\u52a1\u7684\u4f7f\u7528\u573a\u666f\uff1a<\/strong><\/p>\n \u5728\u65e5\u5e38\u751f\u6d3b\u4e2d\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u8fdb\u884c\u94f6\u884c\u8f6c\u8d26\u4e86\u8fd9\u4e2a\u94f6\u884c\u8f6c\u8d26\u64cd\u4f5c\u80cc\u540e\u5c31\u662f\u9700\u8981\u6267\u884c\u591a\u4e2aSQL\u8bed\u53e5\uff0c\u5047\u5982\u8fd9\u4e9bSQL\u6267\u884c\u5230\u4e00\u534a\u7a81\u7136\u505c\u7535\u4e86\uff0c\u90a3\u4e48\u5c31\u4f1a\u5bfc\u81f4\u8fd9\u4e2a\u529f\u80fd\u53ea\u5b8c\u6210\u4e86\u4e00\u534a\uff0c\u8fd9\u79cd\u60c5\u51b5\u662f\u4e0d\u5141\u8bb8\u51fa\u73b0\uff0c\u8981\u60f3\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5c31\u9700\u8981\u901a\u8fc7\u4e8b\u52a1\u6765\u5b8c\u6210<\/p>\n \u4e8b\u52a1\u7684\u56db\u5927\u7279\u6027<\/h4>\n\n\n\u539f\u5b50\u6027(Atomicity)<\/h5>\n\u4e00\u4e2a\u4e8b\u52a1\u5fc5\u987b\u88ab\u89c6\u4e3a\u4e00\u4e2a\u4e0d\u53ef\u5206\u5272\u7684\u6700\u5c0f\u5de5\u4f5c\u5355\u5143\uff0c\u6574\u4e2a\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u63d0\u4ea4\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\u6eda\u86cb\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4e8b\u52a1\u6765\u8bf4\uff0c\u4e0d\u53ef\u80fd\u53ea\u6267\u884c\u5176\u4e2d\u7684\u4e00\u90e8\u5206\u64cd\u4f5c\uff0c\u8fd9\u5c31\u662f\u4e8b\u52a1\u7684\u539f\u5b50\u6027<\/p>\n<\/li>\n \n\u4e00\u81f4\u6027(Consistency)<\/h5>\n\u6570\u636e\u5e93\u603b\u662f\u4ece\u4e00\u4e2a\u4e00\u81f4\u6027\u7684\u72b6\u6001\u8f6c\u6362\u5230\u53e6\u5916\u4e00\u4e2a\u4e00\u81f4\u6027\u7684\u72b6\u6001\uff0c(\u5728\u524d\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u4e00\u81f4\u6027\u786e\u4fdd\u4e86\uff0c\u5373\u4f7f\u5728\u8f6c\u8d26\u8fc7\u7a0b\u4e2d\u7cfb\u7edf\u5d29\u6e83\uff0c\u652f\u7968\u8d26\u6237\u4e2d\u4e5f\u4e0d\u4f1a\u635f\u5931200\u7f8e\u5143\uff0c\u56e0\u4e3a\u4e8b\u52a1\u6700\u7ec8\u6ca1\u6709\u63d0\u4ea4\uff0c\u6240\u4ee5\u4e8b\u52a1\u4e2d\u6240\u505a\u7684\u4fee\u6539\u4e5f\u4e0d\u4f1a\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d)<\/p>\n<\/li>\n \n\u9694\u79bb\u6027(Isolation)<\/h5>\n\u901a\u5e38\u6765\u8bf4\uff0c\u4e00\u4e2a\u4e8b\u52a1\u6240\u505a\u7684\u4fee\u6539\u64cd\u4f5c\u5728\u63d0\u4ea4\u4e8b\u52a1\u4e4b\u524d\uff0c\u5bf9\u4e8e\u5176\u4ed6\u4e8b\u52a1\u6765\u8bf4\u662f\u4e0d\u53ef\u89c1\u7684\u3002(\u5728\u524d\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5f53\u6267\u884c\u5b8c\u7b2c\u4e09\u6761\u8bed\u53e5\u3001\u7b2c\u56db\u6761\u8bed\u53e5\u8fd8\u672a\u5f00\u59cb\u65f6\uff0c\u6b64\u65f6\u6709\u53e6\u5916\u7684\u4e00\u4e2a\u8d26\u6237\u6c47\u603b\u7a0b\u5e8f\u5f00\u59cb\u8fd0\u884c\uff0c\u5219\u5176\u770b\u5230\u652f\u7968\u5e10\u6237\u7684\u4f59\u989d\u5e76\u6ca1\u6709\u88ab\u51cf\u53bb200\u7f8e\u5143)<\/p>\n<\/li>\n \n\u6301\u4e45\u6027(Durability)<\/h5>\n\u4e00\u65e6\u4e8b\u52a1\u63d0\u4ea4\uff0c\u5219\u6240\u505a\u7684\u4fee\u6539\u4f1a\u6c38\u4e45\u4fdd\u5b58\u5230\u6570\u636e\u5e93<\/p>\n<\/li>\n<\/ul>\n \u8bf4\u660e\uff1a<\/strong><\/p>\n \u4e8b\u52a1\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u8ba9\u7528\u6237\u7684\u64cd\u4f5c\u66f4\u52a0\u5b89\u5168<\/p>\n \u4e8b\u52a1\u7684\u4f7f\u7528<\/h4>\n\u5728\u4f7f\u7528\u4e8b\u52a1\u4e4b\u524d\uff0c\u5148\u8981\u786e\u4fdd\u8868\u5b58\u50a8\u7684\u5f15\u64ce\u662f InnoDB \u7c7b\u578b\uff0c\u53ea\u6709\u8fd9\u4e2a\u7c7b\u578b\u624d\u53ef\u4ee5\u4f7f\u7528\u4e8b\u52a1\uff0cMySQL\u6570\u636e\u5e93\u4e2d\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u9ed8\u8ba4\u662f InnoDB \u7c7b\u578b<\/p>\n \u8868\u7684\u5b58\u50a8\u5f15\u64ce\u5c31\u662f\u63d0\u4f9b\u5b58\u50a8\u6570\u636e\u4e00\u79cd\u673a\u5236\uff0c\u4e0d\u540c\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u63d0\u4f9b\u4e0d\u540c\u7684\u50a8\u5b58\u673a\u5236<\/p>\n \u67e5\u770bMySQL\u6570\u636e\u5e93\u652f\u6301\u7684\u8868\u7684\u5b58\u50a8\u5f15\u64ce<\/strong><\/p>\n show engines;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u5e38\u7528\u7684\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u662f InnoDB \u548c MyISAM<\/li>\n InnoDB \u662f\u652f\u6301\u4e8b\u52a1\u7684<\/li>\n MyISAM \u4e0d\u652f\u6301\u4e8b\u52a1\uff0c\u4f18\u52bf\u662f\u8bbf\u95ee\u901f\u5ea6\u5feb\uff0c\u5bf9\u4e8b\u52a1\u6ca1\u6709\u8981\u6c42\u6216\u8005\u4ee5select<\/code>\u3001insert<\/code>\u4e3a\u4e3b\u7684\u90fd\u53ef\u4ee5\u4f7f\u7528\u8be5\u5b58\u50a8\u5f15\u64ce\u6765\u521b\u5efa\u8868<\/li>\n<\/ul>\n\u67e5\u770b goods \u8868\u7684\u521b\u8868\u8bed\u53e5\uff1a<\/strong><\/p>\n -- \u9009\u62e9\u6570\u636e\u5e93\nuse jing_dong;\n-- \u67e5\u770b goods \u8868\u7684\u521b\u8868\u8bed\u53e5\nshow create table goods;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/p>\n | goods | CREATE TABLE `goods` (\n `id` int unsigned NOT NULL AUTO_INCREMENT,\n `name` varchar(150) NOT NULL,\n `cate_id` int NOT NULL,\n `brand_id` int NOT NULL,\n `price` decimal(10,3) NOT NULL DEFAULT '0.000',\n `is_show` bit(1) NOT NULL DEFAULT b'1',\n `is_saleoff` bit(1) NOT NULL DEFAULT b'0',\n PRIMARY KEY (`id`)\n) ENGINE=InnoDB AUTO_INCREMENT=31 DEFAULT CHARSET=utf8mb3 |\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u901a\u8fc7\u521b\u8868\u8bed\u53e5\u53ef\u4ee5\u5f97\u77e5\uff0cgoods\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u662f InnoDB<\/li>\n \u4fee\u6539\u8868\u7684\u5b58\u50a8\u5f15\u64ce\u4f7f\u7528\uff1aalter table \u8868\u540d engine = \u5f15\u64ce\u7c7b\u578b<\/code>\n\n\u6bd4\u5982\uff1aalter table students engine = 'MyISAM';<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\u5f00\u542f\u4e8b\u52a1<\/strong><\/h4>\nbegin;\n-- \u6216\u8005\nstart transaction;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u5f00\u542f\u4e8b\u52a1\u540e\u6267\u884c\u4fee\u6539\u547d\u4ee4\uff0c\u53d8\u66f4\u6570\u636e\u4f1a\u4fdd\u5b58\u5230MySQL\u670d\u52a1\u7aef\u7684\u7f13\u5b58\u6587\u4ef6\u4e2d\uff0c\u800c\u4e0d\u7ef4\u62a4\u5230\u7269\u7406\u8868\u4e2d<\/li>\n MySQL\u6570\u636e\u5e93\u9ed8\u8ba4\u91c7\u7528\u81ea\u52a8\u63d0\u4ea4(autocommit)\u6a21\u5f0f\uff0c\u5982\u679c\u6ca1\u6709\u663e\u793a\u7684\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u90a3\u4e48\u6bcf\u6761SQL\u8bed\u53e5\u90fd\u4f1a\u88ab\u5f53\u505a\u4e00\u4e2a\u4e8b\u52a1\u6267\u884c\u63d0\u4ea4\u64cd\u4f5c<\/li>\n \u5f53\u8bbe\u7f6e autocommit=0 \u5c31\u662f\u53d6\u6d88\u4e86\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\u6a21\u5f0f\uff0c\u77e5\u9053\u663e\u793a\u7684\u6267\u884c autocommit \u548c rollback \u8868\u793a\u8be5\u4e8b\u7269\u7ed3\u675f\n\nautocommit=0 \u8868\u793a\u53d6\u6d88\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\u6a21\u5f0f\uff0c\u9700\u8981\u624b\u52a8\u6267\u884c autocommit \u5b8c\u6210\u4e8b\u52a1\u7684\u63d0\u4ea4<\/li>\n<\/ul>\n<\/li>\n<\/ul>\nset autocommit = 0;\ninsert into classes(name) values('\u5965\u6570');\t\n-- \u9700\u8981\u624b\u52a8\u63d0\u4ea4\ncommit;\n\n-- \u91cd\u65b0\u6253\u5f00\u4e00\u4e2a\u7ec8\u7aef\u7a97\u53e3\uff0c\u8fde\u63a5MySQL\u6570\u636e\u5e93\u670d\u52a1\u7aef\nmysql -uroot -p\n-- \u67e5\u8be2\u6570\u636e\uff0c\u5982\u679c\u4e0a\u4e2a\u7a97\u53e3\u6267\u884c\u4e86 commit\uff0c\u8fd9\u4e2a\u7a97\u53e3\u624d\u80fd\u770b\u5230\u6570\u636e\nselect * from students;\n<\/code><\/pre>\n\u63d0\u4ea4\u4e8b\u52a1<\/h4>\n\u5c06\u672c\u5730\u7f13\u5b58\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u63d0\u4ea4\u5230\u7269\u7406\u8868\u4e2d\uff0c\u5b8c\u6210\u6570\u636e\u7684\u66f4\u65b0<\/p>\n commit;\n<\/code><\/pre>\n\u56de\u6eda\u4e8b\u52a1<\/h4>\n\u653e\u5f03\u672c\u5730\u7f13\u5b58\u6587\u4ef6\u4e2d\u7684\u7f13\u5b58\u6570\u636e\uff0c\u8868\u793a\u56de\u5230\u5f00\u59cb\u4e8b\u52a1\u7684\u72b6\u6001<\/p>\n rollback;\n<\/code><\/pre>\n\u603b\u7ed3\uff1a<\/strong><\/p>\n \n\n\u4e8b\u52a1\u7684\u7279\u6027\uff1a<\/p>\n \n\u539f\u5b50\u6027: \u5f3a\u8c03\u4e8b\u52a1\u4e2d\u7684\u591a\u4e2a\u64cd\u4f5c\u65f6\u4e00\u4e2a\u6574\u4f53<\/li>\n \u4e00\u81f4\u6027: \u5f3a\u8c03\u6570\u636e\u5e93\u4e2d\u4e0d\u4f1a\u4fdd\u5b58\u4e0d\u4e00\u81f4\u72b6\u6001<\/li>\n \u9694\u79bb\u6027: \u5f3a\u8c03\u6570\u636e\u5e93\u4e2d\u4e8b\u52a1\u4e4b\u95f4\u76f8\u4e92\u4e0d\u53ef\u89c1\u3002\u6301\u4e45\u6027:\u5f3a\u8c03\u6570\u636e\u5e93\u80fd\u6c38\u4e45\u4fdd\u5b58\u6570\u636e\uff0c\u4e00\u65e6\u63d0\u4ea4\u5c31\u4e0d\u53ef\u64a4\u9500<\/li>\n<\/ul>\n<\/li>\n \nMSQL\u6570\u636e\u5e93\u9ed8\u8ba4\u91c7\u7528\u81ea\u52a8\u63d0\u4ea4(autocommit)\u6a21\u5f0f,\u4e5f\u5c31\u662f\u8bf4\u4fee\u6539\u6570\u636e(insert<\/code>\u3001update<\/code>\u3001delete<\/code>)\u7684\u64cd\u4f5c\u4f1a\u81ea\u52a8\u7684\u89e6\u53d1\u4e8b\u52a1,\u5b8c\u6210\u4e8b\u52a1\u7684\u63d0\u4ea4\u6216\u8005\u56de\u6eda<\/p>\n<\/li>\n \n\u5f00\u542f\u4e8b\u52a1\u4f7f\u7528 begin;<\/code> \u6216\u8005start transaction;<\/code><\/p>\n<\/li>\n \n\u56de\u6eda\u4e8b\u52a1\u4f7f\u7528 rollback;<\/code><\/p>\n<\/li>\n \npymysql\u91cc\u9762\u7684 conn.commit()<\/code> \u64cd\u4f5c\u5c31\u662f\u63d0\u4ea4\u4e8b\u52a1<\/p>\n<\/li>\n \npymysql \u91cc\u9762\u7684 conn.rollback()<\/code>\u64cd\u4f5c\u5c31\u662f\u56de\u6eda\u4e8b\u52a1<\/p>\n<\/li>\n<\/ol>\n 7.\u7d22\u5f15<\/h3>\n\u7d22\u5f15\u7684\u4ecb\u7ecd<\/h4>\n\u7d22\u5f15\u5728MySQL\u4e2d\u4e5f\u53eb\u505a\u201c\u952e\u201d\uff0c\u5b83\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u6587\u4ef6\uff0c\u5b83\u4fdd\u5b58\u7740\u6570\u636e\u8868\u91cc\u7684\u6240\u6709\u8bb0\u5f55\u7684\u4f4d\u7f6e\u4fe1\u606f\uff0c\u66f4\u901a\u4fd7\u7684\u6765\u8bf4\uff0c\u6570\u636e\u5e93\u7d22\u5f15\u597d\u6bd4\u662f\u4e00\u672c\u4e66\u524d\u9762\u7684\u76ee\u5f55\uff0c\u80fd\u52a0\u5feb\u6570\u636e\u5e93\u7684\u67e5\u8be2\u901f\u5ea6<\/p>\n \u5e94\u7528\u573a\u666f<\/strong><\/p>\n \u5f53\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u91cf\u5f88\u5927\u65f6\uff0c\u67e5\u627e\u6570\u636e\u4f1a\u53d8\u5f97\u5f88\u6162\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u6765\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u67e5\u8be2\u6548\u7387<\/p>\n \u7d22\u5f15\u7684\u4f7f\u7528<\/h4>\n\u67e5\u8be2\u8868\u4e2d\u5df2\u6709\u7684\u7d22\u5f15<\/p>\n show index from \u8868\u540d;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u4e3b\u952e\u5217\u4f1a\u81ea\u52a8\u521b\u5efa\u7d22\u5f15<\/li>\n \u5916\u952e\u7ea6\u675f\u8fd9\u4e2a\u5b57\u6bb5\u4e5f\u4f1a\u81ea\u52a8\u521b\u5efa\u7d22\u5f15<\/li>\n<\/ul>\n\u7d22\u5f15\u7684\u521b\u5efa<\/h4>\n\u521b\u5efa\u7d22\u5f15\u7684\u8bed\u6cd5\u683c\u5f0f<\/p>\n alter table \u8868\u540d add index \u7d22\u5f15\u540d[\u53ef\u9009](\u5217\u540d,...);\n<\/code><\/pre>\n\u7ed9name\u5b57\u6bb5\u6dfb\u52a0\u7d22\u5f15<\/p>\n alter table classes add index my_name(name);\n-- \u7d22\u5f15\u540d\u53ef\u4ee5\u4e0d\u5199\nalter table classes add index(name);\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u7d22\u5f15\u540d\u4e0d\u6307\u5b9a\uff0c\u9ed8\u8ba4\u4f7f\u7528\u5b57\u6bb5\u540d<\/li>\n<\/ul>\n\u7d22\u5f15\u7684\u5220\u9664<\/h4>\n\u5220\u9664\u7d22\u5f15\u7684\u8bed\u6cd5\u683c\u5f0f<\/p>\n alter table \u8868\u540d drop index \u7d22\u5f15\u540d;\n<\/code><\/pre>\n\u5982\u679c\u4e0d\u77e5\u9053\u7d22\u5f15\u540d\uff0c\u53ef\u4ee5\u67e5\u770b\u521b\u8868sql\u8bed\u53e5<\/p>\n show create table classes;\n<\/code><\/pre>\n\n\n\u7ed3\u679c<\/p>\n | classes | CREATE TABLE `classes` (\n `id` int unsigned NOT NULL AUTO_INCREMENT,\n `name` varchar(20) NOT NULL,\n PRIMARY KEY (`id`),\n KEY `my_name` (`name`)\n) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8mb3 |\n<\/code><\/pre>\n\u5176\u4e2dKEY `my_name` (`name`)<\/code>\u4e2d\u7684my_name<\/code>\u5c31\u662fname<\/code>\u5b57\u6bb5\u7684\u7d22\u5f15\u540d<\/p>\n<\/li>\n<\/ul>\n \u5220\u9664\u7d22\u5f15<\/p>\n alter table classes drop index my_name;\n<\/code><\/pre>\n\u6848\u4f8b-\u9a8c\u8bc1\u7d22\u5f15\u67e5\u8be2\u6027\u80fd<\/h4>\n\u521b\u5efa\u6d4b\u8bd5\u8868test_index<\/code>\uff1a<\/p>\n create table test_index(name varchar(10));\n<\/code><\/pre>\n\u5411\u8868\u4e2d\u63d2\u5165\u4e00\u4e07\u6761\u6570\u636e\uff1a<\/p>\n import pymysql\ndef main ():\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host = '192.168.10.128',\n port = 3306,\n user = 'root',\n passwd = 'mysql',\n database = 'python1',\n charset = 'utf8'\n )\n # \u83b7\u53d6\u6e38\u6807\n cursor = conn.cursor()\n sql = "insert into test_index(name) values(%s);"\n # \u5faa\u73af\u6267\u884c\u4e00\u4e07\u6b21\u63d2\u5165\u6570\u636e\u7684\u64cd\u4f5c\n try:\n for i in range(10000):\n # \u6267\u884cSQL\n cursor.execute(sql, ['test'+str(i),])\n # \u63d0\u4ea4\u6570\u636e\u5230\u6570\u636e\u5e93\n conn.commit()\n except Exception as e:\n # \u56de\u6eda\u6570\u636e\n conn.rollback()\n finally:\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n\nif name == 'main':\n main()\n<\/code><\/pre>\n\u9a8c\u8bc1\u7d22\u5f15\u6027\u80fd\u64cd\u4f5c<\/h4>\n\u5f00\u542f\u8fd0\u884c\u65f6\u95f4\u76d1\u6d4b<\/p>\n set profiling = 1;\n<\/code><\/pre>\n\u67e5\u627e\u7b2c\u4e00\u4e07\u6761\u6570\u636etest9999<\/code><\/p>\n select * from test_index where name='test9999';\n<\/code><\/pre>\n\u67e5\u770b\u6267\u884c\u65f6\u95f4<\/p>\n show profiles;\n<\/code><\/pre>\n\u7ed9name<\/code>\u5b57\u6bb5\u521b\u5efa\u7d22\u5f15<\/p>\n alter table test_index add index(name);\n<\/code><\/pre>\n\u518d\u6267\u884c\u4e00\u6b21\u67e5\u8be2\u8bed\u53e5<\/p>\n select * from test_index where name='test9999';\n<\/code><\/pre>\n\u518d\u67e5\u770b\u4e00\u6b21\u6267\u884c\u7684\u65f6\u95f4<\/p>\n show profiles;\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n +----------+------------+------------------------------------------------+\n| Query_ID | Duration | Query |\n+----------+------------+------------------------------------------------+\n| 1 | 0.00852925 | select * from test_index where name='test9999' |\n| 2 | 0.11075650 | alter table test_index add index(name) |\n| 3 | 0.00053750 | select * from test_index where name='test9999' |\n+----------+------------+------------------------------------------------+\n<\/code><\/pre>\n\u6ca1\u52a0\u7d22\u5f15\u67e5\u8be2\u65f6\u95f4\u4e3a0.00852925<\/code>\uff0c\u52a0\u4e86\u7d22\u5f15\u7684\u67e5\u8be2\u65f6\u95f4\u4e3a0.00053750<\/code><\/p>\n \u8054\u5408\u7d22\u5f15<\/h4>\n\u8054\u5408\u7d22\u5f15\u4e5f\u53eb\u590d\u5408\u7d22\u5f15\uff0c\u5373\u4e00\u4e2a\u7d22\u5f15\u8986\u76d6\u8868\u4e2d\u7684\u4e24\u4e2a\u6216\u8005\u591a\u4e2a\u5b57\u6bb5\uff0c\u4e00\u822c\u7528\u5728\u591a\u4e2a\u5b57\u6bb5\u4e00\u8d77\u67e5\u8be2\u7684\u65f6\u5019<\/p>\n \u521b\u5efateacher<\/code>\u8868<\/p>\n create table my_test(id int unsigned not null primary key auto_increment, name varchar(10), age int not null);\n<\/code><\/pre>\n\u521b\u5efa\u8054\u5408\u7d22\u5f15<\/p>\n alter table my_test add index (name,age);\n<\/code><\/pre>\n\u8054\u5408\u7d22\u5f15\u7684\u597d\u5904<\/strong><\/p>\n \n\u51cf\u5c11\u78c1\u76d8\u7a7a\u95f4\u7684\u5f00\u9500\uff0c\u56e0\u4e3a\u6bcf\u521b\u5efa\u4e00\u4e2a\u7d22\u5f15\uff0c\u5176\u5b9e\u5c31\u662f\u521b\u5efa\u4e86\u4e00\u4e2a\u7d22\u5f15\u6587\u4ef6\uff0c\u90a3\u4e48\u4f1a\u589e\u52a0\u78c1\u76d8\u7a7a\u95f4\u7684\u5f00\u9500<\/li>\n<\/ul>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n | my_test | CREATE TABLE `my_test` (\n `id` int unsigned NOT NULL AUTO_INCREMENT,\n `name` varchar(10) DEFAULT NULL,\n `age` int NOT NULL,\n PRIMARY KEY (`id`),\n KEY `name` (`name`,`age`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 |\n<\/code><\/pre>\nKEY `name` (`name`,`age`)<\/code>\uff1a\u5c31\u662f\u8054\u5408\u7d22\u5f15\u7684\u7ed3\u679c<\/p>\n \u8054\u5408\u7d22\u5f15\u7684\u6700\u5de6\u539f\u5219<\/h4>\n\u5728\u4f7f\u7528\u8054\u5408\u7d22\u5f15\u7684\u65f6\u5019\uff0c\u6211\u4eec\u8981\u9075\u5faa\u4e00\u4e2a\u6700\u5de6\u539f\u5219\uff0c\u5373index(name, age)<\/code>\u652f\u6301name<\/code>\u3001age<\/code>\u7ec4\u5408\u67e5\u8be2\uff0c\u800c\u4e0d\u652f\u6301\u5355\u72ec\u7684age<\/code>\u67e5\u8be2\uff0c\u5e94\u4e3a\u6ca1\u6709\u7528\u5230\u521b\u5efa\u7684\u8054\u5408\u7d22\u5f15<\/p>\n \u6700\u5de6\u539f\u5219\u793a\u4f8b\uff1a<\/strong><\/p>\n -- \u4e0b\u9762\u67e5\u8be2\u4f7f\u7528\u4e86\u8054\u5408\u7d22\u5f15\nselect * from students where name = '\u5f20\u4e09';\nselect * from students where name = '\u5c0f\u4e54' and age = 24;\n-- \u4e0b\u9762\u67e5\u8be2\u6ca1\u6709\u4f7f\u7528\u8054\u5408\u7d22\u5f15\nselect * from students where age = 24;\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u5728\u4f7f\u7528\u8054\u5408\u7d22\u5f15\u67e5\u8be2\u6570\u636e\u7684\u65f6\u5019\uff0c\u4e00\u5b9a\u8981\u4fdd\u8bc1\u8054\u5408\u7d22\u5f15\u7684\u6700\u5de6\u4fa7\u5b57\u6bb5\u51fa\u73b0\u5728\u67e5\u8be2\u6761\u4ef6\u91cc\u9762\uff0c\u5426\u5219\u8054\u5408\u7d22\u5f15\u5931\u6548<\/li>\n<\/ul>\nMySQL\u4e2d\u7d22\u5f15\u7684\u4f18\u7f3a\u70b9\u548c\u4f7f\u7528\u539f\u5219<\/h4>\n\n\u4f18\u70b9\uff1a\n\n\u52a0\u5feb\u6570\u636e\u7684\u67e5\u8be2\u901f\u5ea6<\/li>\n<\/ol>\n<\/li>\n \u7f3a\u70b9\uff1a\n\n\u521b\u5efa\u7d22\u5f15\u4f1a\u8017\u8d39\u65f6\u95f4\u548c\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\uff0c\u5e76\u4e14\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u52a0\u6240\u8017\u8d39\u7684\u65f6\u95f4\u4e5f\u4f1a\u589e\u52a0<\/li>\n<\/ol>\n<\/li>\n \u4f7f\u7528\u539f\u5219\uff1a\n\n\u901a\u8fc7\u4f18\u7f3a\u70b9\u5bf9\u6bd4\uff0c\u4e0d\u662f\u7d22\u5f15\u8d8a\u591a\u8d8a\u597d\uff0c\u800c\u662f\u9700\u8981\u81ea\u5df1\u548c\u5408\u7406\u4f7f\u7528<\/li>\n \u5bf9\u7ecf\u5e38\u66f4\u65b0\u7684\u8868\u5c31\u907f\u514d\u5bf9\u5176\u8fdb\u884c\u8fc7\u591a\u7d22\u5f15\u7684\u521b\u5efa\uff0c\u5bf9\u7ecf\u5e38\u7528\u4e8e\u67e5\u8be2\u7684\u5b57\u6bb5\u5e94\u8be5\u521b\u5efa\u7d22\u5f15<\/li>\n \u6570\u636e\u91cf\u5c0f\u7684\u8868\uff0c\u6700\u597d\u4e0d\u8981\u4f7f\u7528\u7d22\u5f15\uff0c\u56e0\u4e3a\u7531\u4e8e\u6570\u636e\u8f83\u5c11\uff0c\u53ef\u80fd\u67e5\u8be2\u5168\u90e8\u6570\u636e\u82b1\u8d39\u7684\u65f6\u95f4\u6bd4\u904d\u5386\u7d22\u5f15\u7684\u65f6\u95f4\u8fd8\u8981\u77ed\uff0c\u7d22\u5f15\u5c31\u53ef\u80fd\u4e0d\u4f1a\u4ea7\u751f\u4f18\u5316\u6548\u679c<\/li>\n \u5728\u4e00\u5b57\u6bb5\u4e0a\u76f8\u540c\u503c\u6bd4\u8f83\u591a\u4e0d\u8981\u5efa\u7acb\u7d22\u5f15\uff0c\u6bd4\u5982\u5728\u5b66\u751f\u8868\u7684\u201c\u6027\u522b\u201d\u5b57\u6bb5\u4e0a\u53ea\u6709\u7537\uff0c\u5973\u4e24\u4e2a\u4e0d\u540c\u7684\u503c\uff0c\u76f8\u53cd\u7684\uff0c\u5728\u4e00\u4e2a\u5b57\u6bb5\u4e0a\u4e0d\u540c\u503c\u8f83\u591a\u53ef\u5efa\u7acb\u7d22\u5f15<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\u4e8c\u5341\u56db\u3001\u95ed\u5305\u548c\u88c5\u9970\u5668<\/h2>\n 1.\u95ed\u5305<\/h3>\n \u95ed\u5305\u7684\u5b9a\u4e49<\/h4>\n\u5728\u51fd\u6570\u5d4c\u5957\u7684\u524d\u63d0\u4e0b\uff0c\u5185\u90e8\u51fd\u6570\u4f7f\u7528\u4e86\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\uff0c\u5e76\u4e14\u5916\u90e8\u51fd\u6570\u8fd4\u56de\u4e86\u5185\u90e8\u51fd\u6570\uff0c\u6211\u4eec\u628a\u8fd9\u4e2a\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u53d8\u91cf\u7684\u5185\u90e8\u51fd\u6570\u79f0\u4e3a\u95ed\u5305<\/strong><\/p>\n \u95ed\u5305\u7684\u6784\u6210\u6761\u4ef6<\/h4>\n\u901a\u8fc7\u95ed\u5305\u7684\u5b9a\u4e49\uff0c\u6211\u4eec\u770b\u5f97\u77e5\u95ed\u5305\u7684\u5f62\u6210\u6761\u4ef6<\/p>\n \n\u5728\u51fd\u6570\u5d4c\u5957(\u51fd\u6570\u91cc\u9762\u518d\u5b9a\u4e49\u51fd\u6570)\u7684\u524d\u63d0\u4e0b<\/li>\n \u5185\u90e8\u51fd\u6570\u4f7f\u7528\u4e86\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf(\u8fd8\u5305\u62ec\u5916\u90e8\u51fd\u6570\u7684\u53c2\u6570)<\/li>\n \u5916\u90e8\u51fd\u6570\u8fd4\u56de\u4e86\u5185\u90e8\u51fd\u6570<\/li>\n<\/ol>\n\u7b80\u5355\u7684\u95ed\u5305\u793a\u4f8b<\/h4>\ndef func_out():\n # \u5916\u90e8\u51fd\u6570\n num1 = 10\n def func_inner(num2):\n # \u5185\u90e8\u51fd\u6570\n # \u5185\u90e8\u51fd\u6570\u4f7f\u7528\u5916\u90e8\u51fd\u6570\u53d8\u91cf\n add = num1 + num2\n print(f'\u7ed3\u679c\u662f\uff1a{add}')\n # \u5916\u90e8\u51fd\u6570\u8fd4\u56de\u5185\u90e8\u51fd\u6570\n return func_inner\n\n\nif name == 'main':\n new_func = func_out()\n new_func(22)\n new_func(2)\n<\/code><\/pre>\n\u8fd0\u884c\u7ed3\u679c\uff1a<\/strong><\/p>\n \u7ed3\u679c\u662f\uff1a32\n\u7ed3\u679c\u662f\uff1a12\n<\/code><\/pre>\n\u95ed\u5305\u6267\u884c\u7ed3\u679c\u8bf4\u660e\uff1a<\/strong><\/p>\n \u901a\u8fc7\u4e0a\u9762\u7684\u8f93\u51fa\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff0c\u95ed\u5305\u4fdd\u5b58\u4e86\u5916\u90e8\u51fd\u6570\u5185\u7684\u53d8\u91cfnum1<\/code>\uff0c\u6bcf\u6b21\u6267\u884c\u95ed\u5305\u90fd\u662f\u5728num = 1<\/code>\u57fa\u7840\u4e0a\u8fdb\u884c\u8ba1\u7b97<\/p>\n \u95ed\u5305\u7684\u4f5c\u7528<\/h4>\n\n\u95ed\u5305\u53ef\u4ee5\u4fdd\u5b58\u5916\u90e8\u51fd\u6570\u5185\u7684\u53d8\u91cf\uff0c\u4e0d\u4f1a\u968f\u7740\u5916\u90e8\u51fd\u6570\u8c03\u7528\u5b8c\u800c\u9500\u6bc1<\/li>\n<\/ul>\n\u6ce8\u610f\u70b9\uff1a<\/strong><\/p>\n \n\u7531\u4e8e\u95ed\u5305\u5f15\u7528\u4e86\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\uff0c\u5219\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\u6ca1\u6709\u53ca\u65f6\u91ca\u653e\uff0c\u6d88\u8017\u5185\u5b58<\/li>\n<\/ul>\n2.\u95ed\u5305\u7684\u4f7f\u7528<\/h3>\n \u6848\u4f8b<\/h4>\n\u9700\u6c42\uff1a\u6839\u636e\u914d\u7f6e\u4fe1\u606f\u4f7f\u7528\u95ed\u5305\u5b9e\u73b0\u4e0d\u540c\u4eba\u7684\u5bf9\u8bdd\u4fe1\u606f\uff0c\u4f8b\u5982\u5bf9\u8bdd\uff1a<\/p>\n \u5f20\u4e09\uff1a\u5230\u5317\u4eac\u4e86\u5417\uff1f<\/p>\n \u674e\u56db\uff1a\u5df2\u7ecf\u5230\u4e86\uff0c\u653e\u5fc3\u5427<\/p>\n \u5b9e\u73b0\u6b65\u9aa4\u8bf4\u660e<\/h4>\n\n\u5b9a\u4e49\u5916\u90e8\u51fd\u6570\u63a5\u6536\u4e0d\u540c\u7684\u914d\u7f6e\u4fe1\u606f\u53c2\u6570\uff0c\u53c2\u6570\u662f\u4eba\u540d<\/li>\n \u5b9a\u4e49\u5185\u90e8\u51fd\u6570\u63a5\u6536\u5bf9\u8bdd\u4fe1\u606f\u53c2\u6570<\/li>\n \u5728\u5185\u90e8\u51fd\u6570\u91cc\u9762\u628a\u914d\u7f6e\u5f62\u8c61\u548c\u5bf9\u8bdd\u4fe1\u606f\u8fdb\u884c\u62fc\u63a5\u8f93\u51fa<\/li>\n<\/ol>\n\u529f\u80fd\u4ee3\u7801\u7684\u5b9e\u73b0<\/h4>\n# \u5916\u90e8\u51fd\u6570\u63a5\u6536\u59d3\u540d\u53c2\u6570\ndef config_name(name):\n # \u5185\u90e8\u51fd\u6570\u4fdd\u5b58\u5916\u90e8\u51fd\u6570\u7684\u53c2\u6570\uff0c\u5e76\u4e14\u5b8c\u6210\u6570\u636e\u663e\u793a\u7684\u50a8\u5b58\n def inner(say):\n print(name + ":" + say)\n # \u5916\u90e8\u51fd\u6570\u8fd4\u56de\u5185\u90e8\u51fd\u6570\n return inner\n\nif name == 'main':\n # \u521b\u5efaTOM\u95ed\u5305\u5b9e\u4f8b\n tom = config_name('tom')\n # \u521b\u5efajerry\u95ed\u5305\u5b9e\u4f8b\n jerry = config_name('jerry')\n # \u6267\u884c\u95ed\u5305\n tom("\u4f60\u5230\u5317\u4eac\u4e86\u5417\uff1f")\n jerry("\u5df2\u7ecf\u5230\u4e86\uff0c\u4f60\u653e\u5fc3\u5427\u3002")\n<\/code><\/pre>\n3.\u4fee\u6539\u95ed\u5305\u5185\u4f7f\u7528\u7684\u5916\u90e8\u53d8\u91cf<\/h3>\n \u4fee\u6539\u95ed\u5305\u5185\u4f7f\u7528\u7684\u5916\u90e8\u53d8\u91cf<\/h4>\n\u4fee\u6539\u95ed\u5305\u5185\u4f7f\u7528\u7684\u5916\u90e8\u53d8\u91cf\u7684\u793a\u4f8b\uff1a<\/strong><\/p>\n def func_out():\n num1 = 10\n def func_inner():\n # \u5728\u95ed\u5305\u5185\u4fee\u6539\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\uff0c\u5176\u5b9e\u662f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\n # num1 = 20\n # \u5728\u95ed\u5305\u5185\u4fee\u6539\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\u9700\u8981\u4f7f\u7528nonlocal\u5173\u952e\u5b57\n nonlocal num1\n num1 = 20\n sum_num = num1 + 10\n print(sum_num)\n\n print("\u4fee\u6539\u524d\u7684\u5916\u90e8\u53d8\u91cf", num1)\n func_inner()\n print("\u4fee\u6539\u540e\u7684\u5916\u90e8\u53d8\u91cf", num1)\n return func_inner\n\nnew_func = func_out()\nnew_func()\n<\/code><\/pre>\n4.\u88c5\u9970\u5668<\/h3>\n \u88c5\u9970\u5668\u7684\u5b9a\u4e49<\/h4>\n\u5c31\u662f\u7ed9\u5df2\u6709\u7684\u51fd\u6570\u589e\u52a0\u989d\u5916\u529f\u80fd\u7684\u51fd\u6570\uff0c\u5b83\u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e2a\u95ed\u5305\u51fd\u6570<\/strong><\/p>\n \u88c5\u9970\u5668\u7684\u529f\u80fd\u7279\u70b9<\/strong><\/p>\n \n\u4e0d\u4fee\u6539\u5df2\u6709\u51fd\u6570\u7684\u6e90\u4ee3\u7801<\/li>\n \u4e0d\u4fee\u6539\u5df2\u6709\u51fd\u6570\u7684\u8c03\u7528\u65b9\u5f0f<\/li>\n \u7ed9\u5df2\u6709\u51fd\u6570\u589e\u52a0\u989d\u5916\u7684\u529f\u80fd<\/li>\n<\/ol>\n\u88c5\u9970\u5668\u7684\u793a\u4f8b<\/h4>\n# \u5b9a\u4e49\u88c5\u9970\u5668\ndef decorator(func): # \u5982\u679c\u95ed\u5305\u51fd\u6570\u7684\u53c2\u6570\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\uff0c\u5e76\u4e14\u662f\u51fd\u6570\u7c7b\u578b\uff0c\u90a3\u4e48\u8fd9\u4e2a\u95ed\u5305\u51fd\u6570\u79f0\u4e3a\u88c5\u9970\u5668\n def inner():\n # \u5728\u5185\u90e8\u51fd\u6570\u91cc\u9762\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n print('\u5df2\u6dfb\u52a0\u767b\u5f55\u9a8c\u8bc1')\n func()\n return inner\n\ndef comment():\n print('\u53d1\u8868\u8bc4\u8bba')\n\nif name == 'main':\n # \u8c03\u7528\u88c5\u9970\u5668\uff0c\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n comment = decorator(comment)\n # \u8c03\u7528\u65b9\u5f0f\u4e0d\u53d8\n comment()\n<\/code><\/pre>\n\u88c5\u9970\u5668\u8bed\u6cd5\u7cd6\u5199\u6cd5<\/h4>\n\u5982\u679c\u591a\u4e2a\u51fd\u6570\u90fd\u9700\u8981\u6dfb\u52a0\u767b\u5f55\u9a8c\u8bc1\u529f\u80fd\uff0c\u6bcf\u6b21\u90fd\u9700\u8981\u5199comment = decorator(comment)<\/code>\u8fd9\u6837\u4ee3\u7801\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\uff0c\u505a\u6cd5\u963f\u662f\u6bd4\u8f83\u9ebb\u70e6<\/p>\n python\u7ed9\u63d0\u4f9b\u4e86\u4e00\u4e2a\u88c5\u9970\u51fd\u6570\u66f4\u52a0\u7b80\u5355\u7684\u5199\u6cd5—\u8bed\u6cd5\u7cd6\uff0c\u8bed\u6cd5\u7cd6\u7684\u4e66\u5199\u683c\u5f0f\u662f@\u88c5\u9970\u5668\u540d<\/code>\u901a\u8fc7\u8bed\u6cd5\u7cd6\u7684\u65b9\u5f0f\u4e5f\u53ef\u4ee5\u5b8c\u6210\u5bf9\u5df2\u6709\u51fd\u6570\u7684\u88c5\u9970<\/p>\n # \u5b9a\u4e49\u88c5\u9970\u5668\ndef decorator(func): # \u5982\u679c\u95ed\u5305\u51fd\u6570\u7684\u53c2\u6570\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\uff0c\u5e76\u4e14\u662f\u51fd\u6570\u7c7b\u578b\uff0c\u90a3\u4e48\u8fd9\u4e2a\u95ed\u5305\u51fd\u6570\u79f0\u4e3a\u88c5\u9970\u5668\n def inner():\n # \u5728\u5185\u90e8\u51fd\u6570\u91cc\u9762\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n print('\u5df2\u6dfb\u52a0\u767b\u5f55\u9a8c\u8bc1')\n func()\n return inner\n@decorator # \u88c5\u9970\u5668\u7684\u8bed\u6cd5\u7cd6\u5199\u6cd5\ndef comment():\n print('\u53d1\u8868\u8bc4\u8bba')\n\nif name == 'main':\n # # \u8c03\u7528\u88c5\u9970\u5668\uff0c\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n # comment = decorator(comment)\n # \u8c03\u7528\u65b9\u5f0f\u4e0d\u53d8\n comment()\n<\/code><\/pre>\n\u88c5\u9970\u5668\u7684\u6267\u884c\u65f6\u673a\uff1a\u5f53\u5f53\u524d\u6a21\u5757\u52a0\u8f7d\u5b8c\u6210\u4ee5\u540e\uff0c\u88c5\u9970\u5668\u4f1a\u7acb\u5373\u6267\u884c\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970<\/p>\n 5.\u88c5\u9970\u5668\u7684\u4f7f\u7528<\/h3>\n \u88c5\u9970\u5668\u7684\u4f7f\u7528\u573a\u666f<\/h4>\n\n\u51fd\u6570\u6267\u884c\u65f6\u95f4\u7684\u7edf\u8ba1<\/li>\n \u8f93\u51fa\u65e5\u5fd7\u4fe1\u606f<\/li>\n<\/ol>\n\u88c5\u9970\u5668\u5b9e\u73b0\u5df2\u6709\u51fd\u6570\u6267\u884c\u65f6\u95f4\u7684\u7edf\u8ba1<\/h4>\nimport time\n\ndef get_time(fn):\n def inner():\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4,\u8ddd\u79bb1970\u5e741\u67081\u65e50\u65f60\u52061\u79d2\u7684\u65f6\u95f4\u5dee\n begin = time.time()\n fn()\n end = time.time()\n result = end - begin\n print('\u6267\u884c\u5b8c\u6210\uff0c\u5171\u8017\u65f6\uff1a', result)\n return inner\n\n@get_time # work = get_time(work), work = inner\ndef work():\n for i in range(10000):\n print(i)\n\nif name == 'main':\n work()\n<\/code><\/pre>\n6.\u901a\u7528\u88c5\u9970\u5668\u7684\u4f7f\u7528<\/h3>\n\u53ef\u4ee5\u88c5\u9970\u4efb\u610f\u7c7b\u578b\u7684\u51fd\u6570<\/strong><\/p>\n \u88c5\u9970\u5e26\u6709\u53c2\u6570\u7684\u51fd\u6570<\/h4>\n# \u88c5\u9970\u5e26\u6709\u53c2\u6570\u7684\u51fd\u6570\ndef func_out(fn):\n def inner(num1, num2):\n print('\u6b63\u5728\u52aa\u529b\u8fdb\u884c\u8ba1\u7b97...')\n fn(num1, num2)\n \n return inner\n\n\n@func_out\ndef add_num(num1, num2):\n result = num1 + num2\n print(f'\u7ed3\u679c\u662f\uff1a{result}')\n\n \nif name == 'main':\n add_num(1,2)\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u4f7f\u7528\u88c5\u9970\u5668\u88c5\u9970\u5df2\u6709\u51fd\u6570\u7684\u65f6\u5019\uff0c\u5185\u90e8\u51fd\u6570\u7684\u7c7b\u578b\u548c\u5df2\u6709\u51fd\u6570\u7684\u5fc5\u987b\u7c7b\u578b\u4fdd\u6301\u4e00\u81f4<\/strong><\/p>\n \u88c5\u9970\u5e26\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u51fd\u6570<\/h4>\n# \u88c5\u9970\u5e26\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u51fd\u6570\ndef func_out(fn):\n def inner(num1, num2):\n print('\u6b63\u5728\u52aa\u529b\u8fdb\u884c\u8ba1\u7b97...')\n num = fn(num1, num2)\n return num\n \n return inner\n\n\n@func_out\ndef add_num(num1, num2):\n result = num1 + num2\n return result\n\n\nif name == 'main':\n result_sum = add_num(1,2)\n print(result_sum)\n<\/code><\/pre>\n\u88c5\u9970\u5e26\u6709\u4e0d\u5b9a\u957f\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u51fd\u6570<\/h4>\n\u8be5\u88c5\u9970\u5668\u8fd8\u53ef\u4ee5\u79f0\u4e3a\u662f\u901a\u7528\u7684\u88c5\u9970\u5668<\/p>\n # \u88c5\u9970\u5e26\u6709\u4e0d\u5b9a\u957f\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u51fd\u6570\ndef func_out(fn):\n def inner(*args, **kwargs):\n print('\u6b63\u5728\u52aa\u529b\u8fdb\u884c\u8ba1\u7b97...')\n num = fn(*args, **kwargs)\n return num\n\n return inner\n\n\n@func_out\ndef add_num(*args, **kwargs):\n result = 0\n # args\uff1a\u5143\u7ec4\u7c7b\u578b\n # kwargs\uff1a\u5b57\u5178\u7c7b\u578b\n for value in args:\n result += value\n for value in kwargs.values():\n result += value\n return result\n\n\nif name == 'main':\n result_sum = add_num(1,2)\n print(f'\u7ed3\u679c\u4e3a\uff1a{result_sum}')\n<\/code><\/pre>\n*args<\/code>\uff1a\u628a\u5143\u7ec4\u91cc\u9762\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\uff0c\u6309\u7167\u4f4d\u7f6e\u53c2\u6570\u7684\u65b9\u5f0f\u8fdb\u884c\u4f20\u53c2<\/p>\n **kwargs<\/code>\uff1a\u628a\u5b57\u5178\u91cc\u9762\u7684\u6bcf\u4e00\u4e2a\u952e\u503c\u5bf9\uff0c\u6309\u7167\u5173\u952e\u5b57\u7684\u65b9\u5f0f\u8fdb\u884c\u4f20\u53c2<\/p>\n \u8fd9\u91cc\u5bf9\u5143\u7ec4\u548c\u5b57\u5178\u8fdb\u884c\u62c6\u5305\uff0c\u4ec5\u9650\u4e8e\u7ed3\u5408\u4e0d\u5b9a\u957f\u53c2\u6570\u7684\u51fd\u6570\u4f7f\u7528<\/p>\n 7.\u591a\u4e2a\u88c5\u9970\u5668\u7684\u4f7f\u7528<\/h3>\n# \u5b9a\u4e49\u88c5\u9970\u5668\ndef make_div(fn):\n print('make_div')\n def inner():\n # \u5728\u5185\u90e8\u51fd\u6570\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n result = '<div>'+ fn() + '<\/div>'\n return result\n return inner\n\n\ndef make_p(fn):\n print('make_p')\n def inner():\n # \u5728\u5185\u90e8\u51fd\u6570\u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u88c5\u9970\n result = '<p>'+ fn() + '<\/p>'\n return result\n return inner\n\n@make_div\n@make_p\ndef content():\n return '666'\n\nif name == 'main':\n new_result = content()\n print(new_result)\n # \u9700\u8981\u8fbe\u5230\u5982\u4e0b\u6548\u679c\uff1a<p>666<\/p>\n<\/code><\/pre>\n\u591a\u4e2a\u88c5\u9970\u5668\u7684\u8fc7\u7a0b\uff1a\u7531\u5185\u5230\u5916\u7684\u4e00\u4e2a\u88c5\u9970\u8fc7\u7a0b\uff0c\u5148\u6267\u884c\u5185\u90e8\u7684\u88c5\u9970\u5668\uff0c\u518d\u6267\u884c\u5916\u90e8\u7684\u88c5\u9970\u5668<\/p>\n \u539f\u7406\u5256\u6790\uff1acontent = make_div(make_p(content))<\/code><\/p>\n \u5206\u5e03\u62c6\u89e3<\/p>\n \ncontent = make_p(content)<\/code>\u5185\u90e8\u88c5\u9970\u5668\u88c5\u9970\u5b8c\u6210content = make_p.inner<\/code><\/li>\n content = make_div(make_p.inner)<\/code><\/li>\n<\/ul>\n8.\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668<\/h3>\n \u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\u4ecb\u7ecd<\/h4>\n\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\u5c31\u662f\u4f7f\u7528\u88c5\u9970\u5668\u88c5\u9970\u51fd\u6570\u7684\u65f6\u5019\u53ef\u4ee5\u4f20\u5165\u6307\u5b9a\u53c2\u6570\uff0c\u8bed\u6cd5\u683c\u5f0f\uff1a@\u88c5\u9970\u5668\u540d(\u53c2\u6570,...)<\/code><\/p>\n def return_func_out(flag):\n # \u5b9a\u4e49\u88c5\u9970\u5668\n def func_out(fn):\n def inner(a, b):\n if flag == '+':\n print('\u6b63\u5728\u6267\u884c\u52a0\u6cd5\u8ba1\u7b97loading...')\n elif flag == "-":\n print('\u6b63\u5728\u6267\u884c\u51cf\u6cd5\u6cd5\u8ba1\u7b97loading...')\n fn(a, b)\n return inner\n # \u5f53\u8c03\u7528\u8be5\u51fd\u6570\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u88c5\u9970\u5668\n return func_out\n\n# \u52a0\u6cd5\u8ba1\u7b97\n"""\nfunc_out = return_func_out('+')\n@return_func_out('+') ==> add_num = func_out(add_num)\n"""\n@return_func_out('+')\ndef add_num(a, b):\n print(a + b)\n\n# \u51cf\u6cd5\u8ba1\u7b97\n@return_func_out('-')\ndef sub_num(a, b):\n print(a - b)\n\nif name == 'main':\n add_num(1, 2)\n sub_num(1, 2)\n<\/code><\/pre>\n\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\uff0c\u5176\u5b9e\u5c31\u662f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570\uff0c\u8ba9\u51fd\u6570\u63a5\u6536\u53c2\u6570\uff0c\u5728\u51fd\u6570\u5185\u90e8\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u88c5\u9970\u5668<\/p>\n 9.\u7c7b\u88c5\u9970\u5668\u7684\u4f7f\u7528<\/h3>\n \u7c7b\u88c5\u9970\u5668\u7684\u4ecb\u7ecd<\/h4>\n\u88c5\u9970\u5668\u8fd8\u6709\u4e00\u79cd\u7279\u6b8a\u7684\u7528\u6cd5\u5c31\u662f\u7c7b\u88c5\u9970\u5668\uff0c\u5c31\u662f\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u6765\u88c5\u9970\u51fd\u6570<\/p>\n \u7c7b\u88c5\u9970\u5668\u793a\u4f8b\uff1a<\/strong><\/p>\n class Char(object):\n def init(self, fn):\n self.fn = fn\n # \u5b9e\u73b0call\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u8ba9\u5bf9\u8c61\u53d8\u6210\u53ef\u8c03\u7528\u7684\u5bf9\u8c61\uff0c\u53ef\u8c03\u7528\u7684\u5bf9\u8c61\u80fd\u591f\u50cf\u51fd\u6570\u4e00\u6837\u4f7f\u7528\n def call(self, *args, **kwargs):\n # \u5bf9\u5df2\u6709\u51fd\u6570\u8fdb\u884c\u5c01\u88c5\n print('\u73b0\u5728\u4e0b\u53485:55\u5206')\n self.fn(*args, **kwargs)\n\n@Char\ndef show():\n print('\u5feb\u8981\u4e0b\u73ed\u4e86')\n\nif name == 'main':\n # \u6267\u884cshow() ==> \u6267\u884cChar\u7c7b\u521b\u5efa\u7684\u5b9e\u4f8b\u5bf9\u8c61\n show()\n<\/code><\/pre>\n\u6269\u5c55<\/h4>\n\n\n\u51fd\u6570\u4e4b\u6240\u4ee5\u80fd\u591f\u8c03\u7528\u662f\u56e0\u4e3a\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u4e86call<\/code>\u65b9\u6cd5<\/p>\n def mytest():\n print(6)\n\nprint(dir(mytest))\n<\/code><\/pre>\n\ndir()<\/code>\u51fd\u6570\uff1a\u7528\u4e8e\u8fd4\u56de\u5bf9\u8c61\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u5217\u8868<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\u4e8c\u5341\u4e94\u3001mini-Web<\/code>\u6846\u67b6<\/h2>\n1.web\u6846\u67b6\u6982\u8ff0<\/h3>\n web\u6846\u67b6\u548cweb\u670d\u52a1\u5668\u7684\u5173\u7cfb\u4ecb\u7ecd<\/h4>\n\u4f7f\u7528web\u6846\u67b6\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u7528\u6237\u7684\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u8fd9\u4e2aweb\u6846\u67b6\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u4e3aweb\u670d\u52a1\u5668\u63d0\u4f9b\u670d\u52a1\u7684\u5e94\u7528\u7a0b\u5e8f<\/strong>\uff0c\u7b80\u79f0web\u6846\u67b6<\/p>\n <\/p>\n \u5173\u7cfb\u8bf4\u660e\uff1a<\/strong><\/p>\n \nweb\u670d\u52a1\u5668\u63a5\u6536\u6d4f\u89c8\u5668\u53d1\u8d77\u7684\u8bf7\u6c42\uff0c\u5982\u679c\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u627eweb\u6846\u67b6\u6765\u5904\u7406<\/li>\n web\u6846\u67b6\u590d\u5236\u5904\u7406\u6d4f\u89c8\u5668\u7684\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u628a\u5904\u7406\u7684\u7ed3\u679c\u53d1\u9001\u7ed9web\u670d\u52a1\u5668<\/li>\n web\u670d\u52a1\u5668\u518d\u628a\u54cd\u5e94\u7ed3\u679c\u53d1\u9001\u7ed9\u6d4f\u89c8\u5668<\/li>\n<\/ul>\n\u9759\u6001\u8d44\u6e90<\/h4>\n\u4e0d\u9700\u8981\u7ecf\u5e38\u53d8\u5316\u7684\u8d44\u6e90\uff0c\u8fd9\u79cd\u8d44\u6e90web\u670d\u52a1\u5668\u53ef\u4ee5\u63d0\u524d\u51c6\u5907\u597d\uff0c\u6bd4\u5982\uff1a.png<\/code>\u3001.jpg<\/code>\u3001.css<\/code>\u3001.js<\/code>\u7b49\u6587\u4ef6<\/p>\n \u52a8\u6001\u8d44\u6e90<\/h4>\n\u548c\u9759\u6001\u8d44\u6e90\u76f8\u53cd\uff0c\u8fd9\u79cd\u8d44\u6e90\u4f1a\u7ecf\u5e38\u53d8\u5316\uff0c\u6bd4\u5982\uff1a\u6211\u4eec\u5728\u4eac\u4e1c\u6d4f\u89c8\u5546\u54c1\u65f6\u7ecf\u5e38\u4f1a\u66f4\u5177\u6761\u4ef6\u8fdb\u884c\u7b5b\u9009\uff0c\u9009\u62e9\u4e0d\u540c\u6761\u4ef6\uff0c\u6d4f\u89c8\u4e0d\u540c\u7684\u5546\u54c1\uff0c\u8fd9\u79cd\u8d44\u6e90web\u670d\u52a1\u5668\u65e0\u6cd5\u63d0\u524d\u51c6\u5907\u597d\uff0c\u9700\u8981web\u6846\u67b6\u6765\u5e2eweb\u670d\u52a1\u5668\u8fdb\u884c\u51c6\u5907\uff0c\u8fd9\u91ccweb\u670d\u52a1\u5668\u53ef\u4ee5\u628a.html<\/code>\u7684\u8d44\u6e90\u8bf7\u6c42\u8ba4\u4e3a\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u4ea4\u7531web\u6846\u67b6\u8fdb\u884c\u5904\u7406<\/p>\n WSGI\u534f\u8bae<\/h4>\n\u5b83\u662fweb\u670d\u52a1\u5668\u548cweb\u6846\u67b6\u4e4b\u95f4\u8fdb\u884c\u534f\u8c03\u5de5\u4f5c\u7684\u4e00\u4e2a\u89c4\u5219\uff0cWSGI\u534f\u8bae\u89c4\u5b9aweb\u670d\u52a1\u5668\u628a\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u4fe1\u606f\u4f20\u7ed9web\u6846\u67b6\u5904\u7406\uff0cweb\u6846\u67b6\u628a\u5904\u7406\u597d\u7684\u7ed3\u679c\u8fd4\u56de\u7ed9web\u670d\u52a1\u5668<\/p>\n \u603b\u7ed3<\/h4>\n\nweb\u6846\u67b6\u662f\u4e13\u95e8\u4e3aweb\u670d\u52a1\u5668\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f<\/li>\n web\u6846\u67b6\u548cweb\u670d\u52a1\u5668\u7684\u5173\u7cfb\u662fweb\u6846\u67b6\u4e13\u95e8\u670d\u52a1\u4e8eweb\u670d\u52a1\u5668\uff0c\u7ed9web\u670d\u52a1\u5668\u63d0\u4f9b\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u670d\u52a1<\/li>\n<\/ul>\n2.\u6846\u67b6\u7a0b\u5e8f\u5f00\u53d1<\/h3>\n \u6846\u67b6\u804c\u8d23\u4ecb\u7ecd<\/h4>\n\n\u63a5\u6536web\u670d\u52a1\u5668\u7684\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u7ed9web\u670d\u52a1\u5668\u63d0\u4f9b\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u670d\u52a1<\/li>\n<\/ul>\n\u52a8\u6001\u8d44\u6e90\u5224\u65ad<\/h4>\n\n\u6839\u636e\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\u7684\u540e\u7f00\u540d\u8fdb\u884c\u5224\u65ad\n\n\u5982\u679c\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\u7684\u540e\u7f00\u540d\u662f.html<\/code>\u5219\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u8ba9web\u6846\u67b6\u7a0b\u5e8f\u8fdb\u884c\u5904\u7406<\/li>\n \u5426\u5219\u662f\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u8ba9web\u670d\u52a1\u5668\u7a0b\u5e8f\u8fdb\u884c\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ul>\nweb\u670d\u52a1\u5668\u7a0b\u5e8f(web.py<\/code>)\u4ee3\u7801\uff1a<\/strong><\/p>\n import socket\nimport threading\nimport sys\nimport framework\n\n# HTTP\u534f\u8bae\u7684Web\u670d\u52a1\u5668\u7c7b\nclass HttpWebServer(object):\n def init(self, port):\n server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n # \u7ed1\u5b9a\u7aef\u53e3\n server_socket.bind(('', port))\n # \u8bbe\u7f6e\u7aef\u53e3\u590d\u7528\n server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)\n # \u8bbe\u7f6e\u76d1\u542c\uff08\u6700\u5927128\u4f4d\uff09\n server_socket.listen(128)\n # \u628aTCP\u670d\u52a1\u5668\u5957\u63a5\u5b57\u4f5c\u4e3aweb\u670d\u52a1\u5668\u5bf9\u8c61\u5c5e\u6027\n self.server_socket = server_socket\n\n # \u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\n @staticmethod\n # @staticmethod \u662f Python \u7c7b\u4e2d\u7684\u9759\u6001\u65b9\u6cd5\u88c5\u9970\u5668\uff0c\u4f5c\u7528\u662f\u5b9a\u4e49\u4e00\u4e2a\u4e0e\u7c7b\u548c\u5b9e\u4f8b\u90fd\u65e0\u5173\u7684\u65b9\u6cd5\u2014\u2014 \u5b83\u65e2\u4e0d\u9700\u8981\u8bbf\u95ee\u7c7b\u5c5e\u6027\uff0c\u4e5f\u4e0d\u9700\u8981\u8bbf\u95ee\u5b9e\u4f8b\u5c5e\u6027\u3002\n def process(new, port):\n print(f'\u5df2\u4e0e{port}\u5efa\u7acb\u8fde\u63a5')\n\n # \u63a5\u6536TCP\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6570\u636e\uff08\u6700\u59274096\u5b57\u8282\uff09\n user_data = new.recv(4096)\n\n # \u5224\u65ad\u662f\u5426\u4e3a\u7a7a\u6570\u636e\n if len(user_data) == 0:\n print(f'{port}\u5df2\u4e0b\u7ebf...')\n new.close()\n return\n\n # \u5bf9\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u8fdb\u884c\u8f6c\u6362\n user_data_info = user_data.decode("utf-8")\n # \u5bf9\u6570\u636e\u6309\u7167\u7a7a\u683c\u8fdb\u884c\u5206\u5272\n user_list = user_data_info.split(' ', maxsplit=2)\n # \u83b7\u53d6\u8bf7\u6c42\u8def\u5f84\n user_name = user_list[1]\n\n if user_name == '\/':\n # \u6307\u5b9a\u8def\u5f84\n user_name = '\/index.html'\n\n # \u5224\u65ad\u662f\u5426\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u4ee5\u540e\u628a\u540e\u7f00.html\u7684\u8bf7\u6c42\u8ba4\u4e3a\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\n if user_name.endswith(".html"):\n """\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n # \u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u627eweb\u6846\u67b6\u8fdb\u884c\u5904\u7406\uff0c\u9700\u8981\u628a\u8bf7\u6c42\u53c2\u6570\u7ed9web\u6846\u67b6\n # \u51c6\u5907\u7ed9web\u6846\u67b6\u7684\u53c2\u6570\u4fe1\u606f\uff0c\u90fd\u8981\u653e\u5728\u5b57\u5178\u5185\n env = {\n "user_name": user_name,\n # \u4f20\u5165\u8bf7\u6c42\u5934\u4fe1\u606f\uff0c\u989d\u5916\u7684\u53c2\u6570\u53ef\u4ee5\u5728\u5b57\u5178\u91cc\u9762\u518d\u6dfb\u52a0\n }\n # 1.\u4f7f\u7528\u6846\u67b6\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0cweb\u6846\u67b6\u9700\u8981\u628a\u5904\u7406\u7ed3\u679c\u8fd4\u56de\u7ed9web\u670d\u52a1\u5668\n # 2.web\u670d\u52a1\u5668\u8d1f\u8d23\u628a\u8fd4\u56de\u7684\u7ed3\u679c\u5c01\u88c5\u6210\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u6d4f\u89c8\u5668\n # \u72b6\u6001\u4fe1\u606f\uff0c\u54cd\u5e94\u5934\u4fe1\u606f\uff0c\u54cd\u5e94\u4f53\u4fe1\u606f\n status, headers, response_body = framework.hande_request(env)\n print(status, headers,response_body)\n # \u54cd\u5e94\u884c\n response_line = "HTTP\/1.1 %srn" % status\n # \u54cd\u5e94\u5934\n response_header = ""\n for header in headers:\n response_header += "%s: %srn" % header\n # \u54cd\u5e94\u62a5\u6587\n response_date = (response_line +\n response_header +\n "rn" +\n response_body).encode("utf-8")\n # \u53d1\u9001\u54cd\u5e94\u62a5\u6587\u6570\u636e\u7ed9\u6d4f\u89c8\u5668\n new.send(response_date)\n # \u5173\u95ed\u8fde\u63a5\n new.close()\n\n\n else:\n """\u9759\u6001\u8d44\u6e90\u8bf7\u6c42"""\n # \u67e5\u770b\u6709\u65e0\u8fd9\u4e2a\u6587\u4ef6\n try:\n # \u6253\u5f00\u6587\u4ef6\n # \u4e3a\u4e86\u517c\u5bb9\u56fe\u7247\u4f7f\u7528rb\u6253\u5f00\n with open(f"HTTP\u9759\u6001{user_name}", "rb") as file: # file\u8868\u793a\u6253\u5f00\u6587\u4ef6\u7684\u5bf9\u8c61\n # with open \u8bfb\u53d6\u6570\u636e\u540e\u5173\u95ed\u6587\u4ef6\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u6765\u5b8c\u6210\uff0c\u7cfb\u7edf\u81ea\u5df1\u5173\u95ed\n file_data = file.read()\n\n except Exception as e:\n # \u5230\u8fd9\u91cc\u8bf4\u660e\u8bf7\u6c42\u7684\u6ca1\u6709\u8be5\u6587\u4ef6\uff0c\u8fd4\u56de404\n # \u54cd\u5e94\u884c\n not_line = 'HTTP\/1.1 404 Not Foundrn'\n # \u54cd\u5e94\u5934\n not_head = 'Server: PWS\/1.0rn'\n with open("HTTP\u9759\u6001\/404.html", "rb") as file:\n not_file = file.read()\n\n not_info = (not_line + not_head + "rn").encode("utf-8") + not_file\n new.send(not_info)\n else:\n # \u628a\u6570\u636e\u5c01\u88c5\u6210HTTP\u54cd\u5e94\u62a5\u6587\u683c\u5f0f\n # \u54cd\u5e94\u884c\n line = 'HTTP\/1.1 200 OKrn'\n # \u54cd\u5e94\u5934\n head = 'Server: PWS\/1.0rn'\n # \u54cd\u5e94\u4f53\n http_body = file_data\n # \u5408\u5e76\n rdr_info = (line + head + "rn").encode("utf-8") + http_body\n # \u53d1\u9001\u54cd\u5e94\u62a5\u6587\u6570\u636e\n new.send(rdr_info)\n finally:\n # \u65ad\u5f00\u8fde\u63a5\n new.close()\n print(f'{port}\u5df2\u4e0b\u7ebf...')\n\n # \u542f\u52a8\u670d\u52a1\u5668\u65b9\u6cd5\n def start(self):\n while True:\n new, port = self.server_socket.accept()\n sub_process = threading.Thread(target=self.process, args=(new, port), daemon=True)\n sub_process.start()\n\ndef main():\n # \u83b7\u53d6\u7ec8\u7aef\u547d\u4ee4\u884c\u53c2\u6570\n parms = sys.argv\n\n if len(parms) != 2:\n print('\u683c\u5f0f\u9519\u8bef\uff01\u5982\u4e0b\uff1a')\n print('python xxx.py \u7aef\u53e3\u53f7(\u6570\u5b57)')\n return\n\n # \u5224\u65ad\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u5426\u90fd\u662f\u7531\u6570\u5b57\u7ec4\u6210\n if not parms[1].isdigit():\n print('\u683c\u5f0f\u9519\u8bef\uff01\u5982\u4e0b\uff1a')\n print('python xxx.py \u7aef\u53e3\u53f7(\u6570\u5b57)')\n return\n\n port = int(parms[1])\n print(f'\u6210\u529f\uff01\u4f60\u7684\u7aef\u53e3\u53f7\u662f{port}')\n # \u521b\u5efaweb\u670d\u52a1\u5668\n http = HttpWebServer(port)\n # \u542f\u52a8\uff01\uff01\uff01\n http.start()\n\nif name == 'main':\n main()\n<\/code><\/pre>\nweb\u6846\u67b6\u7a0b\u5e8f(framework.py<\/code>)\u4ee3\u7801\uff1a<\/strong><\/p>\n import time\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n print(f"\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u5730\u5740\uff1a{request_path}")\n # \u5224\u65ad\u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84\uff0c\u9009\u62e9\u6307\u5b9a\u7684\u51fd\u6570\u5904\u7406\u5bf9\u5e94\u7684\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\n if request_path == "\/index.html": # \u5982\u679c\u662f\u9996\u9875\n # \u83b7\u53d6\u9996\u9875\u6570\u636e\n result = index()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n<\/code><\/pre>\n3.\u6a21\u677f\u66ff\u6362\u529f\u80fd\u5f00\u53d1<\/h3>\nframework.py<\/code>\u4ee3\u7801<\/p>\n import time\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n print(f"\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u5730\u5740\uff1a{request_path}")\n # \u5224\u65ad\u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84\uff0c\u9009\u62e9\u6307\u5b9a\u7684\u51fd\u6570\u5904\u7406\u5bf9\u5e94\u7684\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\n if request_path == "\/index.html": # \u5982\u679c\u662f\u9996\u9875\n # \u83b7\u53d6\u9996\u9875\u6570\u636e\n result = index()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n<\/code><\/pre>\nindex.html<\/code>\u4ee3\u7801<\/p>\n <!DOCTYPE html>\n<html lang="zh-CN">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>\u80a1\u7968\u5b9e\u65f6\u4fe1\u606f<\/title>\n <style>\n body { font-family: "\u5fae\u8f6f\u96c5\u9ed1", sans-serif; margin: 20px; }\n .stock-card { border: 1px solid #eee; border-radius: 8px; padding: 20px; max-width: 600px; margin: 0 auto; }\n .stock-title { color: #333; border-bottom: 2px solid #4285f4; padding-bottom: 10px; }\n .stock-table { width: 100%; border-collapse: collapse; margin-top: 15px; }\n .stock-table td { padding: 10px; border-bottom: 1px solid #f0f0f0; }\n .stock-table td:first-child { color: #666; width: 35%; }\n .rise { color: #ff4444; }\n .fall { color: #00cc66; }\n <\/style>\n<\/head>\n<body>\n <div class="stock-card">\n <h2 class="stock-title">\u80a1\u7968\u5b9e\u65f6\u884c\u60c5<\/h2>\n \n {% content %}\n <\/div>\n<\/body>\n<\/html>\n<\/code><\/pre>\n4.\u8def\u7531\u5217\u8868\u529f\u80fd\u5f00\u53d1<\/h3>\ncenter.html<\/code>\u4ee3\u7801<\/p>\n <!DOCTYPE html>\n<html lang="zh-CN">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>\u4e2a\u4eba\u4e2d\u5fc3<\/title>\n <style>\n * {\n margin: 0;\n padding: 0;\n box-sizing: border-box;\n font-family: Arial, sans-serif;\n }\n body {\n padding: 20px;\n background: #f8f8f8;\n }\n h1 {\n text-align: center;\n color: #333;\n margin-bottom: 30px;\n }\n .user-info {\n text-align: center;\n margin-bottom: 30px;\n }\n .user-info p {\n font-size: 16px;\n color: #666;\n margin-top: 10px;\n }\n .func-list {\n background: white;\n border-radius: 5px;\n padding: 10px;\n }\n .func-item {\n padding: 15px;\n border-bottom: 1px solid #eee;\n }\n .func-item:last-child {\n border: none;\n }\n .func-item a {\n text-decoration: none;\n color: #333;\n font-size: 16px;\n }\n .logout {\n display: block;\n width: 100%;\n padding: 12px;\n margin-top: 20px;\n border: none;\n background: #e64340;\n color: white;\n font-size: 16px;\n border-radius: 5px;\n cursor: pointer;\n }\n \/* \u52a8\u6001\u5185\u5bb9\u533a\u57df\u6837\u5f0f \/\n .dynamic-content {\n margin: 20px 0;\n padding: 15px;\n background: white;\n border-radius: 5px;\n color: #333;\n }\n <\/style>\n<\/head>\n<body>\n <h1>\u4e2a\u4eba\u4e2d\u5fc3<\/h1>\n\n \n <div class="user-info">\n <h3>\u7528\u6237\u540d\uff1a\u5f20\u4e09<\/h3>\n <p>\u4f1a\u5458\u7b49\u7ea7\uff1a\u666e\u901a\u4f1a\u5458<\/p>\n <\/div>\n\n \n <div class="dynamic-content">\n {% content %}\n <\/div>\n\n \n <div class="func-list">\n <div class="func-item"><a href="#">\u6211\u7684\u8ba2\u5355<\/a><\/div>\n <div class="func-item"><a href="#">\u6536\u8d27\u5730\u5740<\/a><\/div>\n <div class="func-item"><a href="#">\u8d26\u6237\u8bbe\u7f6e<\/a><\/div>\n <div class="func-item"><a href="#">\u5e2e\u52a9\u4e2d\u5fc3<\/a><\/div>\n <\/div>\n\n \n <button class="logout">\u9000\u51fa\u767b\u5f55<\/button>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u8def\u7531\u7684\u4ecb\u7ecd<\/h4>\n\u8def\u7531\u5c31\u662f\u8bf7\u6c42\u7684URL\u5230\u5904\u7406\u51fd\u6570\u65f6\u7684\u6620\u5c04\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u63d0\u524d\u628a\u8bf7\u6c42\u7684URL\u548c\u5904\u7406\u51fd\u6570\u5173\u8054\u597d<\/p>\n \u8def\u7531\u5217\u8868<\/strong><\/p>\n \u8def\u7531\u7684\u7ba1\u7406\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e00\u4e2a\u8def\u7531\u5217\u8868\u8fdb\u884c\u7ba1\u7406\uff0c\u901a\u8fc7\u8def\u7531\u5217\u8868\u4fdd\u5b58\u6bcf\u4e00\u4e2a\u8def\u7531<\/p>\n\n\n\n\n\n\n\n\u8bf7\u6c42\u8def\u5f84<\/th>\n \u5904\u7406\u51fd\u6570<\/th>\n<\/tr>\n<\/thead>\n \/login.html<\/td>\n login\u51fd\u6570<\/td>\n<\/tr>\n \/index.html<\/td>\n index\u51fd\u6570<\/td>\n<\/tr>\n \/center.html<\/td>\n center\u51fd\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n import time\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\ndef center():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/center.html", "r", encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u8def\u7531\u5217\u8868,\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u662f\u4e00\u4e2a\u8def\u7531\nroute_list = [\n ("\/index.html", index),\n ("\/center.html", center),\n ("\/not_found.html", not_found),\n]\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n # \u904d\u5386\u8def\u7531\u5217\u8868\uff0c\u5339\u914d\u8bf7\u6c42\u7684url\n for path, func in route_list:\n if request_path == path:\n # \u627e\u5230\u4e86\u6307\u5b9a\u8def\u7531\uff0c\u6267\u884c\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\n result = func()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n<\/code><\/pre>\n5.\u88c5\u9970\u5668\u65b9\u5f0f\u6dfb\u52a0\u8def\u7531<\/h3>\n\u53ef\u4ee5\u81ea\u52a8\u6dfb\u52a0\u8def\u7531<\/p>\n import time\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n\n# \u8def\u7531\u5217\u8868,\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u662f\u4e00\u4e2a\u8def\u7531\nroute_list = [\n # ("\/index.html", index),\n # ("\/center.html", center),\n # ("\/not_found.html", not_found),\n]\n\n# \u5b9a\u4e49\u4e00\u4e2a\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\ndef func_data(fand):\n # \u88c5\u9970\u5668\n def out(fn):\n # \u5f53\u6267\u884c\u88c5\u9970\u5668\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u628a\u8def\u7531\u6dfb\u52a0\u5230\u8def\u7531\u5217\u8868\u91cc\u9762\n # \u5f53\u88c5\u9970\u51fd\u6570\u7684\u65f6\u5019\uff0c\u53ea\u6dfb\u52a0\u4e00\u6b21\u8def\u7531\u5373\u53ef\n route_list.append((fand, fn))\n def inner():\n result = fn()\n return result\n return inner\n return out\n\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\n@func_data("\/index.html")\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\n@func_data("\/not_found.html")\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n@func_data("\/center.html")\ndef center():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/center.html", "r", encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n # \u904d\u5386\u8def\u7531\u5217\u8868\uff0c\u5339\u914d\u8bf7\u6c42\u7684url\n for path, func in route_list:\n if request_path == path:\n # \u627e\u5230\u4e86\u6307\u5b9a\u8def\u7531\uff0c\u6267\u884c\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\n result = func()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n\nif name == 'main':\n # \u6d4b\u8bd5\u88c5\u9970\u5668\u662f\u5426\u6210\u529f\u6dfb\u52a0\u8def\u7531\n print(route_list)\n<\/code><\/pre>\n6.\u663e\u793a\u80a1\u7968\u4fe1\u606f\u9875\u9762\u7684\u5f00\u53d1<\/h3>\n \u6570\u636e\u51c6\u5907<\/h4>\n-- \u521b\u5efa\u6570\u636e\u5e93\ncreate database stock_db charset=utf8;\n-- \u5207\u6362\u6570\u636e\u5e93\nuse stock_db;\n-- \u6267\u884csql\u6587\u4ef6\nsource stock_db.sql;\n<\/code><\/pre>\nstock_db.sql<\/code>\u6587\u4ef6\u7684\u4ee3\u7801<\/strong><\/p>\n CREATE TABLE stock_info (\n id INT COMMENT '\u5e8f\u53f7',\n code CHAR(6) COMMENT '\u80a1\u7968\u4ee3\u7801',\n name VARCHAR(20) COMMENT '\u80a1\u7968\u540d\u79f0',\n rise_rate DECIMAL(5,2) COMMENT '\u6da8\u5e45(%)',\n rise_rate2 DECIMAL(5,2) COMMENT '\u7b2c\u4e8c\u6da8\u5e45(%)',\n price1 DECIMAL(8,2) COMMENT '\u4ef7\u683c1',\n price2 DECIMAL(8,2) COMMENT '\u4ef7\u683c2',\n date DATE COMMENT '\u65e5\u671f'\n) COMMENT '\u80a1\u7968\u4fe1\u606f\u8868';\n\nINSERT INTO stock_info (id, code, name, rise_rate, rise_rate2, price1, price2, date)\nVALUES \n(1, '600000', '\u6d66\u53d1\u94f6\u884c', 1.25, 0.89, 8.56, 8.45, '2025-12-16'),\n(2, '600036', '\u62db\u5546\u94f6\u884c', 2.18, 1.56, 35.89, 35.12, '2025-12-16'),\n(3, '000001', '\u5e73\u5b89\u94f6\u884c', 0.98, 0.72, 12.35, 12.24, '2025-12-16'),\n(4, '601318', '\u4e2d\u56fd\u5e73\u5b89', 1.85, 1.21, 42.68, 41.95, '2025-12-16');\n\nCREATE TABLE focus (\n id INT PRIMARY KEY AUTO_INCREMENT,\n note_info VARCHAR(50) COMMENT '\u5907\u6ce8\u4fe1\u606f',\n info_id INT COMMENT '\u5173\u8054\u7684\u80a1\u7968\u4fe1\u606fID'\n) COMMENT '\u5173\u6ce8\u8868';\n\nINSERT INTO focus (note_info, info_id)\nVALUES \n('\u91cd\u70b9\u5173\u6ce8\u94f6\u884c\u80a1', 1),\n('\u9ad8\u6210\u957f\u6027\u4e2a\u80a1', 2),\n('\u7a33\u5065\u578b\u914d\u7f6e', 3),\n('\u4fdd\u9669\u9f99\u5934\u6807\u7684', 4);\n\nALTER TABLE focus \nADD CONSTRAINT fk_focus_info_id \nFOREIGN KEY (info_id) REFERENCES stock_info(id);\n\nSELECT f.note_info, s.code, s.name, s.rise_rate\nFROM focus f\nLEFT JOIN stock_info s ON f.info_id = s.id;\n<\/code><\/pre>\nframework.py<\/code>\u4ee3\u7801<\/strong><\/p>\n import time\nimport pymysql\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n\n# \u8def\u7531\u5217\u8868,\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u662f\u4e00\u4e2a\u8def\u7531\nroute_list = [\n # ("\/index.html", index),\n # ("\/center.html", center),\n # ("\/not_found.html", not_found),\n]\n\n# \u5b9a\u4e49\u4e00\u4e2a\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\ndef func_data(fand):\n # \u88c5\u9970\u5668\n def out(fn):\n # \u5f53\u6267\u884c\u88c5\u9970\u5668\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u628a\u8def\u7531\u6dfb\u52a0\u5230\u8def\u7531\u5217\u8868\u91cc\u9762\n # \u5f53\u88c5\u9970\u51fd\u6570\u7684\u65f6\u5019\uff0c\u53ea\u6dfb\u52a0\u4e00\u6b21\u8def\u7531\u5373\u53ef\n route_list.append((fand, fn))\n def inner():\n result = fn()\n return result\n return inner\n return out\n\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\n@func_data("\/index.html")\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5\n conn = pymysql.connect(\n host="192.168.10.128",\n port=3306,\n user="root",\n password="mysql",\n database="stock_db",\n charset="utf8",\n )\n # \u83b7\u53d6\u6e38\u6807\n cursor = conn.cursor()\n # \u51c6\u5907sql\n sql = "select from stock_basic;"\n # \u6267\u884csql\n cursor.execute(sql)\n # \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\n result = cursor.fetchall()\n print(result)\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n # \u904d\u5386\u6bcf\u4e00\u6761\u6570\u636e\uff0c\u5b8c\u6210\u6570\u636etr\u6807\u7b7e\u7684\u5c01\u88c5\n date = ""\n for row in result:\n date += """\n <table style="border: 1px solid black">\n <tr>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <\/tr>\n <\/table>\n """ % row\n\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\n@func_data("\/not_found.html")\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n@func_data("\/center.html")\ndef center():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/center.html", "r", encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u6a21\u62df\u6570\u636e\u5e93\u5185\u5bb9\n date = time.ctime() # \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n # \u904d\u5386\u8def\u7531\u5217\u8868\uff0c\u5339\u914d\u8bf7\u6c42\u7684url\n for path, func in route_list:\n if request_path == path:\n # \u627e\u5230\u4e86\u6307\u5b9a\u8def\u7531\uff0c\u6267\u884c\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\n result = func()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n\nif name == 'main':\n # \u6d4b\u8bd5\u88c5\u9970\u5668\u662f\u5426\u6210\u529f\u6dfb\u52a0\u8def\u7531\n print(route_list)\n<\/code><\/pre>\n7.\u4e2a\u4eba\u4e2d\u5fc3\u6570\u636e\u63a5\u53e3\u7684\u5f00\u53d1<\/h3>\nimport time\nimport pymysql\nimport json\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n\n# \u8def\u7531\u5217\u8868,\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u662f\u4e00\u4e2a\u8def\u7531\nroute_list = [\n # ("\/index.html", index),\n # ("\/center.html", center),\n # ("\/not_found.html", not_found),\n]\n\n# \u5b9a\u4e49\u4e00\u4e2a\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\ndef func_data(fand):\n # \u88c5\u9970\u5668\n def out(fn):\n # \u5f53\u6267\u884c\u88c5\u9970\u5668\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u628a\u8def\u7531\u6dfb\u52a0\u5230\u8def\u7531\u5217\u8868\u91cc\u9762\n # \u5f53\u88c5\u9970\u51fd\u6570\u7684\u65f6\u5019\uff0c\u53ea\u6dfb\u52a0\u4e00\u6b21\u8def\u7531\u5373\u53ef\n route_list.append((fand, fn))\n def inner():\n result = fn()\n return result\n return inner\n return out\n\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\n@func_data("\/index.html")\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5\n conn = pymysql.connect(\n host="192.168.10.128",\n port=3306,\n user="root",\n password="mysql",\n database="stock_db",\n charset="utf8",\n )\n # \u83b7\u53d6\u6e38\u6807\n cursor = conn.cursor()\n # \u51c6\u5907sql\n sql = "select * from stock_info;"\n # \u6267\u884csql\n cursor.execute(sql)\n # \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\n result = cursor.fetchall()\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n # \u904d\u5386\u6bcf\u4e00\u6761\u6570\u636e\uff0c\u5b8c\u6210\u6570\u636etr\u6807\u7b7e\u7684\u5c01\u88c5\n date = ""\n for row in result:\n date += """\n <table style="border: 1px solid black">\n <tr>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <\/tr>\n <\/table>\n """ % row\n\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\n@func_data("\/not_found.html")\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n# \u4e2a\u4eba\u4e2d\u5fc3\u6570\u636e\u63a5\u53e3\n@func_data("\/center_data.html")\ndef center_data():\n # \u4ece\u6570\u636e\u5e93\u628a\u6570\u636e\u67e5\u8be2\u51fa\u6765\uff0c\u7136\u540e\u628a\u67e5\u8be2\u51fa\u6765\u7684\u6570\u636e\u8f6c\u6210json\u6570\u636e\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host="192.168.10.128",\n port=3306,\n user="root",\n password="mysql",\n database="stock_db",\n charset="utf8",\n )\n # \u521b\u5efa\u6e38\u6807\n cursor = conn.cursor()\n # \u51c6\u5907sql\n sql = """\n select s.code, s.name, s.rise_rate,s.rise_rate2, s.price1, s.price2, f.note_info \n from stock_info as s inner join focus as f \n on s.id = f.info_id;"""\n # \u6267\u884csql\n cursor.execute(sql)\n # \u5f97\u5230\u6570\u636e\n result = cursor.fetchall()\n print(result)\n # \u5c06\u5143\u7ec4\u8f6c\u6210\u5217\u8868\u5b57\u5178\n center_data_list = [{\n "code":row[0],\n "name":row[1],\n "rise_rate":str(row[2]),\n "rise_rate2":str(row[3]),\n "price1":str(row[4]),\n "price2":str(row[5]),\n "note_info":row[6],\n } for row in result]\n print(center_data_list)\n # \u5c06\u5217\u8868\u8f6c\u6210json\u5b57\u7b26\u4e32\u6570\u636e\n # ensure_ascii=False\uff1a\u53d6\u6d88\u4f7f\u7528ASCII\u89e3\u7801\uff0c\u5219\u80fd\u5728\u63a7\u5236\u53f0\u663e\u793a\u4e2d\u6587\n json_str = json.dumps(center_data_list, ensure_ascii=False)\n print(json_str)\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [\n ("Server", "PWS\/1.1"),\n # \u6307\u5b9a\u7f16\u7801\u683c\u5f0f\uff0c\u56e0\u4e3a\u6ca1\u6709\u6a21\u677f\u6587\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u54cd\u5e94\u5934\u6307\u5b9a\u7f16\u7801\u683c\u5f0f\n ("Content-Type", "text\/html;charset=utf-8")\n ]\n return status, response_header, json_str\n\n\n\n@func_data("\/center.html")\ndef center():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/center.html", "r", encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n date = time.ctime()\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n # \u904d\u5386\u8def\u7531\u5217\u8868\uff0c\u5339\u914d\u8bf7\u6c42\u7684url\n for path, func in route_list:\n if request_path == path:\n # \u627e\u5230\u4e86\u6307\u5b9a\u8def\u7531\uff0c\u6267\u884c\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\n result = func()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n return result\n\nif name == 'main':\n # \u6d4b\u8bd5\u88c5\u9970\u5668\u662f\u5426\u6210\u529f\u6dfb\u52a0\u8def\u7531\n print(route_list)\n # \u6d4b\u8bd5\u662f\u5426\u5f97\u5230\u4e2a\u4eba\u4e2d\u5fc3\u7684\u6570\u636e\n center_data()\n<\/code><\/pre>\n8.ajax\u8bf7\u6c42\u6570\u636e\u6e32\u67d3\u4e2a\u4eba\u4e2d\u5fc3\u9875\u9762<\/h3>\ncender.html<\/code>\u4ee3\u7801<\/p>\n <!DOCTYPE html>\n<html lang="zh-CN" xmlns="http:\/\/www.w3.org\/1999\/html" xmlns="http:\/\/www.w3.org\/1999\/html">\n<head>\n <meta charset="UTF-8">\n <meta name="viewport" content="width=device-width, initial-scale=1.0">\n <title>\u4e2a\u4eba\u4e2d\u5fc3<\/title>\n <style>\n * {\n margin: 0;\n padding: 0;\n box-sizing: border-box;\n font-family: Arial, sans-serif;\n }\n body {\n padding: 20px;\n background: #f8f8f8;\n }\n h1 {\n text-align: center;\n color: #333;\n margin-bottom: 30px;\n }\n .user-info {\n text-align: center;\n margin-bottom: 30px;\n }\n .user-info p {\n font-size: 16px;\n color: #666;\n margin-top: 10px;\n }\n .func-list {\n background: white;\n border-radius: 5px;\n padding: 10px;\n }\n .func-item {\n padding: 15px;\n border-bottom: 1px solid #eee;\n }\n .func-item:last-child {\n border: none;\n }\n .func-item a {\n text-decoration: none;\n color: #333;\n font-size: 16px;\n }\n .logout {\n display: block;\n width: 100%;\n padding: 12px;\n margin-top: 20px;\n border: none;\n background: #e64340;\n color: white;\n font-size: 16px;\n border-radius: 5px;\n cursor: pointer;\n }\n \/* \u52a8\u6001\u5185\u5bb9\u533a\u57df\u6837\u5f0f \/\n .dynamic-content {\n margin: 20px 0;\n padding: 15px;\n background: white;\n border-radius: 5px;\n color: #333;\n }\n <\/style>\n <script src="jquery-1.12.4.min.js"><\/script>\n <script>\n $(document).ready(function () {\n $.get("center_data.html", function (data) {\n \/\/ ajax\u6210\u529f\u56de\u8c03\u540e\u7684\u51fd\u6570\n \/\/ \u5982\u679c\u6307\u5b9a\u4e86\u8fd4\u56de\u6570\u636e\u7684\u89e3\u6790\u65b9\u5f0f\u662fjson\uff0c\u90a3\u4e48data\u5c31\u662fjs\u5bf9\u8c61\n \/\/ console.log(data);\n \/\/ \u83b7\u53d6table\u6807\u7b7e\n var $table = $(".center_data");\n for(var i = 0; i < data.length; i++) {\n \/\/ \u6839\u636e\u4e0b\u6807\u83b7\u53d6\u6bcf\u4e00\u4e2a\u4e2a\u4eba\u4e2d\u5fc3\u6570\u636ejs\u5bf9\u8c61\n var oCenterData = data[i];\n \/\/ \u5c01\u88c5\u540e\u7684\u6bcf\u4e00\u4e2a\u8868\n var oTable = '<tr>' +\n '<td>'+ oCenterData.code +'<\/td>' +\n '<td>'+ oCenterData.name +'<\/td>' +\n '<td>'+ oCenterData.rise_rate +'<\/td>' +\n '<td>'+ oCenterData.rise_rate2 +'<\/td>' +\n '<td>'+ oCenterData.price1 +'<\/td>' +\n '<td>'+ oCenterData.price2 +'<\/td>' +\n '<td>'+ oCenterData.note_info +'<\/td>' +\n '<\/tr>'\n $table.append(oTable);\n }\n },"json");\n })\n <\/script>\n<\/head>\n<body>\n <h1>\u4e2a\u4eba\u4e2d\u5fc3<\/h1>\n\n \n <div class="user-info">\n <h2>\u7528\u6237\u540d\uff1a\u5f20\u4e09<\/h2>\n <p>\u4f1a\u5458\u7b49\u7ea7\uff1a\u666e\u901a\u4f1a\u5458<\/p>\n <\/div>\n <div class="func-list">\n <h3>\u5df2\u8d2d\u4ea7\u54c1<\/h3>\n <table class="center_data">\n\n <\/table>\n <\/div>\n\n \n <button class="logout">\u9000\u51fa\u767b\u5f55<\/button>\n<\/body>\n<\/html>\n<\/code><\/pre>\n9.logging\u65e5\u5fd7<\/h3>\n logging\u65e5\u5fd7\u4ecb\u7ecd<\/h4>\n\u5728\u73b0\u5b9e\u751f\u6d3b\u4e2d\uff0c\u8bb0\u5f55\u65e5\u5fd7\u975e\u5e38\u91cd\u8981\uff0c\u6bd4\u5982\uff1a\u94f6\u884c\u8f6c\u8d26\u65f6\u4f1a\u6709\u8f6c\u8d26\u8bc1\u5f55\uff1b\u98de\u673a\u98de\u884c\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u6709\u4e2a\u9ed1\u76d2\u5b50(\u98de\u884c\u6570\u636e\u8bb0\u5f55\u5668)\u8bb0\u5f55\u7740\u98de\u673a\u7684\u98de\u884c\u8fc7\u7a0b\uff0c\u90a3\u5728\u54b1\u4eecpython\u7a0b\u5e8f\u4e2d\u60f3\u8981\u8bb0\u5f55\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u6240\u4ea7\u751f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u600e\u4e48\u505a\u5462?<\/p>\n \u4f7f\u7528logging<\/code>\u5305\u6765\u5b8c\u6210<\/p>\n \u8bb0\u5f55\u7a0b\u5e8f\u65e5\u5fd7\u4fe1\u606f\u7684\u76ee\u7684\u662f\uff1a<\/strong><\/p>\n \n\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u4e86\u89e3\u7a0b\u5e8f\u7684\u8fd0\u884c\u60c5\u51b5<\/li>\n \u53ef\u4ee5\u5206\u6790\u7528\u6237\u7684\u64cd\u4f5c\u884c\u4e3a\u3001\u559c\u597d\u7b49\u4fe1\u606f<\/li>\n \u65b9\u4fbf\u5f00\u53d1\u4eba\u5458\u68c0\u67e5bug<\/li>\n<\/ol>\nlogging\u65e5\u5fd7\u7ea7\u522b\u4ecb\u7ecd<\/h4>\n\u65e5\u5fd7\u7b49\u7ea7\u53ef\u4ee5\u5206\u4e3a5\u4e2a\uff0c\u4ece\u4f4e\u5230\u9ad8\u5206\u522b\u662f\uff1a<\/p>\n \nDEBUG<\/li>\n INFO<\/li>\n WARNING<\/li>\n ERROR<\/li>\n CRITICAL<\/li>\n<\/ol>\n\u65e5\u5fd7\u7b49\u7ea7\u8bf4\u660e\uff1a<\/strong><\/p>\n \nDEBUG\uff1a\u7a0b\u5e8f\u8c03\u8bd5bug\u65f6\u4f7f\u7528<\/li>\n INFO\uff1a\u7a0b\u5e8f\u6b63\u5e38\u8fd0\u884c\u65f6\u4f7f\u7528<\/li>\n WARNING\uff1a\u7a0b\u5e8f\u672a\u6309\u9884\u671f\u8fd0\u884c\u65f6\u4f7f\u7528\uff0c\u4f46\u5e76\u4e0d\u662f\u9519\u8bef\uff0c\u5982\uff1a\u7528\u6237\u767b\u5f55\u5bc6\u7801\u9519\u8bef<\/li>\n ERROR\uff1a\u7a0b\u5e8f\u672a\u6309\u9884\u671f\u8fd0\u884c\u65f6\u4f7f\u7528\uff0c\u5982\uff1aIO\u64cd\u4f5c\u5931\u8d25<\/li>\n CRITICAL\uff1a\u7279\u522b\u4e25\u91cd\u7684\u95ee\u9898\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u4e0d\u80fd\u518d\u7ee7\u7eed\u8fd0\u884c\u65f6\u4f7f\u7528\uff0c\u5982\uff1a\u78c1\u76d8\u7a7a\u95f4\u4e3a\u7a7a\uff0c\u4e00\u822c\u5f88\u5c11\u4f7f\u7528<\/li>\n \u9ed8\u8ba4\u7684\u662fWARNING\u7b49\u7ea7\uff0c\u5f53WARNING\u6216WARNING\u4e4b\u4e0a\u7b49\u7ea7\u7684\u624d\u8bb0\u5f55\u65e5\u5fd7\u4fe1\u606f<\/li>\n \u65e5\u5fd7\u7b49\u7ea7\u4ece\u4f4e\u5230\u9ad8\u7684\u987a\u5e8f\u662f\uff1aDEBUG < INFO < WARNING < ERROR < CRITICAL<\/li>\n<\/ul>\nlogging\u65e5\u5fd7\u7684\u4f7f\u7528<\/h4>\n\u5728 logging \u5305\u4e2d\u8bb0\u5f55\u65e5\u5fd7\u7684\u65b9\u5f0f\u6709\u4e24\u79cd\uff1a<\/p>\n \n\u8f93\u51fa\u5230\u63a7\u5236\u53f0<\/li>\n \u4fdd\u5b58\u5230\u65e5\u5fd7\u6587\u4ef6<\/li>\n<\/ol>\n\u65e5\u5fd7\u4fe1\u606f\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n import logging\n\nlogging.debug("\u8fd9\u662f\u4e00\u4e2adebug\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.info("\u8fd9\u662f\u4e00\u4e2ainfo\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.warning("\u8fd9\u4e2a\u662f\u4e00\u4e2awarning\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.error("\u8fd9\u4e2a\u662f\u4e00\u4e2aerror\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.critical("\u8fd9\u4e2a\u662f\u4e00\u4e2acritical\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\n<\/code><\/pre>\n\u8fd0\u884c\u7ed3\u679c\uff1a<\/strong><\/p>\n WARNING:root:\u8fd9\u4e2a\u662f\u4e00\u4e2awarning\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\nERROR:root:\u8fd9\u4e2a\u662f\u4e00\u4e2aerror\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\nCRITICAL:root:\u8fd9\u4e2a\u662f\u4e00\u4e2acritical\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u65e5\u5fd7\u4fe1\u606f\u53ea\u663e\u793a\u4e86\u5927\u4e8e\u7b49\u4e8eWARNING\u7ea7\u522b\u7684\u65e5\u5fd7\uff0c\u8fd9\u8bf4\u660e\u9ed8\u8ba4\u7684\u65e5\u5fd7\u7ea7\u522b\u8bbe\u7f6e\u4e3aWARNING<\/li>\n<\/ul>\nlogging\u65e5\u5fd7\u7b49\u7ea7\u548c\u8f93\u51fa\u683c\u5f0f\u7684\u8bbe\u7f6e\uff1a<\/strong><\/p>\n import logging\n\n# \u8bbe\u7f6e\u65e5\u5fd7\u7b49\u7ea7\u548c\u8f93\u51fa\u65e5\u5fd7\u683c\u5f0f\nlogging.basicConfig(level = logging.DEBUG,\n format = '%(asctime)s-%(filename)s[lineno:%(lineno)d)]-%(levelname)s-%(message)s',\n filename="log.txt",\n filemode="w", # \u6bcf\u6b21\u5b58\u5165\u65b0\u7684\u6570\u636e\uff0c\u4e0d\u4fdd\u7559\u539f\u6570\u636e\n # filemode="a", # \u6bcf\u6b21\u589e\u52a0\u65b0\u7684\u6570\u636e\uff0c\u4fdd\u7559\u539f\u6570\u636e\n encoding = "utf-8", # \u6307\u5b9a\u7f16\u7801\u683c\u5f0f\n )\n\nlogging.debug("\u8fd9\u662f\u4e00\u4e2adebug\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.info("\u8fd9\u662f\u4e00\u4e2ainfo\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.warning("\u8fd9\u4e2a\u662f\u4e00\u4e2awarning\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.error("\u8fd9\u4e2a\u662f\u4e00\u4e2aerror\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\nlogging.critical("\u8fd9\u4e2a\u662f\u4e00\u4e2acritical\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f")\n<\/code><\/pre>\n\nlevel<\/code>\uff1a\u8868\u793a\u8bbe\u7f6e\u7ea7\u522b<\/li>\n format<\/code>\uff1a\u8868\u793a\u8bbe\u7f6e\u8f93\u51fa\u683c\u5f0f\n\n%(asctime)s<\/code>\uff1a\u83b7\u53d6\u5f53\u524d\u65f6\u95f4<\/li>\n %(filename)s<\/code>\uff1a\u83b7\u53d6\u7a0b\u5e8f\u6587\u4ef6\u540d\n\n[lineno:%(lineno)d)]<\/code>\uff1a\u83b7\u53d6\u884c\u53f7<\/li>\n<\/ul>\n<\/li>\n %(levelname)s<\/code>\uff1a\u83b7\u53d6logging\u65e5\u5fd7\u7ea7\u522b<\/li>\n %(message)s<\/code>\uff1a\u83b7\u53d6\u65e5\u5fd7\u5185\u5bb9<\/li>\n<\/ul>\n<\/li>\n filename<\/code>\uff1a\u8868\u793a\u65e5\u5fd7\u8f93\u51fa\u7684\u6587\u4ef6\u540d<\/li>\n encoding<\/code>\uff1a\u6307\u5b9a\u7f16\u7801\u683c\u5f0f<\/li>\n<\/ul>\n\u8fd0\u884c\u7ed3\u679c\uff1a<\/strong><\/p>\n 2025-12-16 19:18:40,862-\u6d4b\u8bd5.py[lineno:8)]-DEBUG-\u8fd9\u662f\u4e00\u4e2adebug\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n2025-12-16 19:18:40,863-\u6d4b\u8bd5.py[lineno:9)]-INFO-\u8fd9\u662f\u4e00\u4e2ainfo\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n2025-12-16 19:18:40,863-\u6d4b\u8bd5.py[lineno:10)]-WARNING-\u8fd9\u4e2a\u662f\u4e00\u4e2awarning\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n2025-12-16 19:18:40,863-\u6d4b\u8bd5.py[lineno:11)]-ERROR-\u8fd9\u4e2a\u662f\u4e00\u4e2aerror\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n2025-12-16 19:18:40,863-\u6d4b\u8bd5.py[lineno:12)]-CRITICAL-\u8fd9\u4e2a\u662f\u4e00\u4e2acritical\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\n<\/code><\/pre>\nlogging\u65e5\u5fd7\u5728mini-web\u9879\u76ee\u4e2d\u5e94\u7528<\/h4>\nweb.py<\/code>\u7a0b\u5e8f\u4f7f\u7528 logging \u65e5\u5fd7\u7684\u8bbe\u7f6e<\/strong><\/p>\n \u7a0b\u5e8f\u5165\u53e3\u6a21\u5757\u8bbe\u7f6e logging \u65e5\u5fd7<\/p>\n import socket\nimport threading\nimport sys\nimport framework\nimport logging\n# \u5728\u7a0b\u5e8f\u5165\u53e3\u6a21\u5757\uff0c\u8bbe\u7f6elogging\u65e5\u5fd7\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u53ea\u914d\u7f6e\u4e00\u6b21\uff0c\u6574\u4e2a\u7a0b\u5e8f\u90fd\u80fd\u4f7f\u7528\uff0c\u597d\u6bd4\u5355\u4f8b\n# \u8bbe\u7f6e\u65e5\u5fd7\u7b49\u7ea7\u548c\u8f93\u51fa\u65e5\u5fd7\u683c\u5f0f\nlogging.basicConfig(level = logging.DEBUG,\n format = '%(asctime)s-%(filename)s[lineno:%(lineno)d)]-%(levelname)s-%(message)s',\n filename="log.txt",\n # filemode="w", # \u6bcf\u6b21\u5b58\u5165\u65b0\u7684\u6570\u636e\uff0c\u4e0d\u4fdd\u7559\u539f\u6570\u636e\n filemode="a", # \u6bcf\u6b21\u589e\u52a0\u65b0\u7684\u6570\u636e\uff0c\u4fdd\u7559\u539f\u6570\u636e\n encoding = "utf-8", # \u6307\u5b9a\u7f16\u7801\u683c\u5f0f\n )\n\n# HTTP\u534f\u8bae\u7684Web\u670d\u52a1\u5668\u7c7b\nclass HttpWebServer(object):\n def init(self, port):\n server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n # \u7ed1\u5b9a\u7aef\u53e3\n server_socket.bind(('', port))\n # \u8bbe\u7f6e\u7aef\u53e3\u590d\u7528\n server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)\n # \u8bbe\u7f6e\u76d1\u542c\uff08\u6700\u5927128\u4f4d\uff09\n server_socket.listen(128)\n # \u628aTCP\u670d\u52a1\u5668\u5957\u63a5\u5b57\u4f5c\u4e3aweb\u670d\u52a1\u5668\u5bf9\u8c61\u5c5e\u6027\n self.server_socket = server_socket\n\n # \u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\n @staticmethod\n # @staticmethod \u662f Python \u7c7b\u4e2d\u7684\u9759\u6001\u65b9\u6cd5\u88c5\u9970\u5668\uff0c\u4f5c\u7528\u662f\u5b9a\u4e49\u4e00\u4e2a\u4e0e\u7c7b\u548c\u5b9e\u4f8b\u90fd\u65e0\u5173\u7684\u65b9\u6cd5\u2014\u2014 \u5b83\u65e2\u4e0d\u9700\u8981\u8bbf\u95ee\u7c7b\u5c5e\u6027\uff0c\u4e5f\u4e0d\u9700\u8981\u8bbf\u95ee\u5b9e\u4f8b\u5c5e\u6027\u3002\n def process(new, port):\n print(f'\u5df2\u4e0e{port}\u5efa\u7acb\u8fde\u63a5')\n\n # \u63a5\u6536TCP\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6570\u636e\uff08\u6700\u59274096\u5b57\u8282\uff09\n user_data = new.recv(4096)\n\n # \u5224\u65ad\u662f\u5426\u4e3a\u7a7a\u6570\u636e\n if len(user_data) == 0:\n print(f'{port}\u5df2\u4e0b\u7ebf...')\n new.close()\n return\n\n # \u5bf9\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u8fdb\u884c\u8f6c\u6362\n user_data_info = user_data.decode("utf-8")\n # \u5bf9\u6570\u636e\u6309\u7167\u7a7a\u683c\u8fdb\u884c\u5206\u5272\n user_list = user_data_info.split(' ', maxsplit=2)\n # \u83b7\u53d6\u8bf7\u6c42\u8def\u5f84\n user_name = user_list[1]\n\n if user_name == '\/':\n # \u6307\u5b9a\u8def\u5f84\n user_name = '\/index.html'\n\n # \u5224\u65ad\u662f\u5426\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0c\u4ee5\u540e\u628a\u540e\u7f00.html\u7684\u8bf7\u6c42\u8ba4\u4e3a\u662f\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\n if user_name.endswith(".html"):\n """\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n logging.info(f"\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u5730\u5740:{user_name}")\n # \u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\u627eweb\u6846\u67b6\u8fdb\u884c\u5904\u7406\uff0c\u9700\u8981\u628a\u8bf7\u6c42\u53c2\u6570\u7ed9web\u6846\u67b6\n # \u51c6\u5907\u7ed9web\u6846\u67b6\u7684\u53c2\u6570\u4fe1\u606f\uff0c\u90fd\u8981\u653e\u5728\u5b57\u5178\u5185\n env = {\n "user_name": user_name,\n # \u4f20\u5165\u8bf7\u6c42\u5934\u4fe1\u606f\uff0c\u989d\u5916\u7684\u53c2\u6570\u53ef\u4ee5\u5728\u5b57\u5178\u91cc\u9762\u518d\u6dfb\u52a0\n }\n # 1.\u4f7f\u7528\u6846\u67b6\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\uff0cweb\u6846\u67b6\u9700\u8981\u628a\u5904\u7406\u7ed3\u679c\u8fd4\u56de\u7ed9web\u670d\u52a1\u5668\n # 2.web\u670d\u52a1\u5668\u8d1f\u8d23\u628a\u8fd4\u56de\u7684\u7ed3\u679c\u5c01\u88c5\u6210\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u6d4f\u89c8\u5668\n # \u72b6\u6001\u4fe1\u606f\uff0c\u54cd\u5e94\u5934\u4fe1\u606f\uff0c\u54cd\u5e94\u4f53\u4fe1\u606f\n status, headers, response_body = framework.hande_request(env)\n print(status, headers,response_body)\n # \u54cd\u5e94\u884c\n response_line = "HTTP\/1.1 %srn" % status\n # \u54cd\u5e94\u5934\n response_header = ""\n for header in headers:\n response_header += "%s: %srn" % header\n # \u54cd\u5e94\u62a5\u6587\n response_date = (response_line +\n response_header +\n "rn" +\n response_body).encode("utf-8")\n # \u53d1\u9001\u54cd\u5e94\u62a5\u6587\u6570\u636e\u7ed9\u6d4f\u89c8\u5668\n new.send(response_date)\n # \u5173\u95ed\u8fde\u63a5\n new.close()\n\n\n else:\n """\u9759\u6001\u8d44\u6e90\u8bf7\u6c42"""\n logging.info(f"\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u5730\u5740:{user_name}")\n # \u67e5\u770b\u6709\u65e0\u8fd9\u4e2a\u6587\u4ef6\n try:\n # \u6253\u5f00\u6587\u4ef6\n # \u4e3a\u4e86\u517c\u5bb9\u56fe\u7247\u4f7f\u7528rb\u6253\u5f00\n with open(f"HTTP\u9759\u6001{user_name}", "rb") as file: # file\u8868\u793a\u6253\u5f00\u6587\u4ef6\u7684\u5bf9\u8c61\n # with open \u8bfb\u53d6\u6570\u636e\u540e\u5173\u95ed\u6587\u4ef6\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u6765\u5b8c\u6210\uff0c\u7cfb\u7edf\u81ea\u5df1\u5173\u95ed\n file_data = file.read()\n\n except Exception as e:\n # \u5230\u8fd9\u91cc\u8bf4\u660e\u8bf7\u6c42\u7684\u6ca1\u6709\u8be5\u6587\u4ef6\uff0c\u8fd4\u56de404\n logging.warning("\u8bbf\u95ee\u65e0\u6548\u5730\u5740")\n # \u54cd\u5e94\u884c\n not_line = 'HTTP\/1.1 404 Not Foundrn'\n # \u54cd\u5e94\u5934\n not_head = 'Server: PWS\/1.0rn'\n with open("HTTP\u9759\u6001\/404.html", "rb") as file:\n not_file = file.read()\n\n not_info = (not_line + not_head + "rn").encode("utf-8") + not_file\n new.send(not_info)\n else:\n # \u628a\u6570\u636e\u5c01\u88c5\u6210HTTP\u54cd\u5e94\u62a5\u6587\u683c\u5f0f\n # \u54cd\u5e94\u884c\n line = 'HTTP\/1.1 200 OKrn'\n # \u54cd\u5e94\u5934\n head = 'Server: PWS\/1.0rn'\n # \u54cd\u5e94\u4f53\n http_body = file_data\n # \u5408\u5e76\n rdr_info = (line + head + "rn").encode("utf-8") + http_body\n # \u53d1\u9001\u54cd\u5e94\u62a5\u6587\u6570\u636e\n new.send(rdr_info)\n finally:\n # \u65ad\u5f00\u8fde\u63a5\n new.close()\n print(f'{port}\u5df2\u4e0b\u7ebf...')\n\n # \u542f\u52a8\u670d\u52a1\u5668\u65b9\u6cd5\n def start(self):\n while True:\n new, port = self.server_socket.accept()\n sub_process = threading.Thread(target=self.process, args=(new, port), daemon=True)\n sub_process.start()\n\ndef main():\n # \u83b7\u53d6\u7ec8\u7aef\u547d\u4ee4\u884c\u53c2\u6570\n parms = sys.argv\n\n if len(parms) != 2:\n print('\u683c\u5f0f\u9519\u8bef\uff01\u5982\u4e0b\uff1a')\n print('python xxx.py \u7aef\u53e3\u53f7(\u6570\u5b57)')\n logging.warning("\u5728\u7ec8\u7aef\u542f\u52a8\u7a0b\u5e8f\u7684\u53c2\u6570\u4e0d\u7b49\u4e8e2")\n return\n\n # \u5224\u65ad\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u5426\u90fd\u662f\u7531\u6570\u5b57\u7ec4\u6210\n if not parms[1].isdigit():\n print('\u683c\u5f0f\u9519\u8bef\uff01\u5982\u4e0b\uff1a')\n print('python xxx.py \u7aef\u53e3\u53f7(\u6570\u5b57)')\n logging.warning("\u5728\u7ec8\u7aef\u542f\u52a8\u7a0b\u5e8f\u7684\u7c7b\u578b\u4e0d\u662f\u6570\u5b57\u5b57\u7b26\u4e32")\n return\n\n port = int(parms[1])\n print(f'\u6210\u529f\uff01\u4f60\u7684\u7aef\u53e3\u53f7\u662f{port}')\n # \u521b\u5efaweb\u670d\u52a1\u5668\n http = HttpWebServer(port)\n # \u542f\u52a8\uff01\uff01\uff01\n http.start()\n\nif name == 'main':\n main()\n<\/code><\/pre>\nframework.py<\/code>\u7a0b\u5e8f\u4f7f\u7528 logging \u65e5\u5fd7\u7684\u8bbe\u7f6e<\/strong><\/p>\n import pymysql\nimport json\nimport logging\n"""web\u6846\u67b6\u7684\u804c\u8d23\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42"""\n\n# \u8def\u7531\u5217\u8868,\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u662f\u4e00\u4e2a\u8def\u7531\nroute_list = [\n # ("\/index.html", index),\n # ("\/center.html", center),\n # ("\/not_found.html", not_found),\n]\n\n# \u5b9a\u4e49\u4e00\u4e2a\u5e26\u6709\u53c2\u6570\u7684\u88c5\u9970\u5668\ndef func_data(fand):\n # \u88c5\u9970\u5668\n def out(fn):\n # \u5f53\u6267\u884c\u88c5\u9970\u5668\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u628a\u8def\u7531\u6dfb\u52a0\u5230\u8def\u7531\u5217\u8868\u91cc\u9762\n # \u5f53\u88c5\u9970\u51fd\u6570\u7684\u65f6\u5019\uff0c\u53ea\u6dfb\u52a0\u4e00\u6b21\u8def\u7531\u5373\u53ef\n route_list.append((fand, fn))\n def inner():\n result = fn()\n return result\n return inner\n return out\n\n# \u83b7\u53d6\u9996\u9875\u6570\u636e\n@func_data("\/index.html")\ndef index():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/index.html", "r",encoding='utf-8') as f:\n f_data = f.read()\n # \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u628a\u6a21\u677f\u91cc\u7684\u6a21\u677f\u53d8\u91cf({% content %})\uff0c\u66ff\u6362\u6210\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n # \u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5\n conn = pymysql.connect(\n host="192.168.10.128",\n port=3306,\n user="root",\n password="mysql",\n database="stock_db",\n charset="utf8",\n )\n # \u83b7\u53d6\u6e38\u6807\n cursor = conn.cursor()\n # \u51c6\u5907sql\n sql = "select from stock_info;"\n # \u6267\u884csql\n cursor.execute(sql)\n # \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\n result = cursor.fetchall()\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n # \u904d\u5386\u6bcf\u4e00\u6761\u6570\u636e\uff0c\u5b8c\u6210\u6570\u636etr\u6807\u7b7e\u7684\u5c01\u88c5\n date = ""\n for row in result:\n date += """\n <table style="border: 1px solid black">\n <tr>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <td>%s<\/td>\n <\/tr>\n <\/table>\n """ % row\n\n response_body = f_data.replace("{% content %}", date)\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u6ca1\u6709\u627e\u5230\u7684\u52a8\u6001\u8d44\u6e90\n@func_data("\/not_found.html")\ndef not_found():\n # \u72b6\u6001\u4fe1\u606f\n status = "404 Not Found"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # web\u6846\u67b6\u5904\u7406\u540e\u7684\u6570\u636e\n date = "Not Found"\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, date\n\n# \u4e2a\u4eba\u4e2d\u5fc3\u6570\u636e\u63a5\u53e3\n@func_data("\/center_data.html")\ndef center_data():\n # \u4ece\u6570\u636e\u5e93\u628a\u6570\u636e\u67e5\u8be2\u51fa\u6765\uff0c\u7136\u540e\u628a\u67e5\u8be2\u51fa\u6765\u7684\u6570\u636e\u8f6c\u6210json\u6570\u636e\n # \u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\n conn = pymysql.connect(\n host="192.168.10.128",\n port=3306,\n user="root",\n password="mysql",\n database="stock_db",\n charset="utf8",\n )\n # \u521b\u5efa\u6e38\u6807\n cursor = conn.cursor()\n # \u51c6\u5907sql\n sql = """\n select s.code, s.name, s.rise_rate,s.rise_rate2, s.price1, s.price2, f.note_info \n from stock_info as s inner join focus as f \n on s.id = f.info_id;"""\n # \u6267\u884csql\n cursor.execute(sql)\n # \u5f97\u5230\u6570\u636e\n result = cursor.fetchall()\n # print(result)\n # \u5c06\u5143\u7ec4\u8f6c\u6210\u5217\u8868\u5b57\u5178\n center_data_list = [{\n "code":row[0],\n "name":row[1],\n "rise_rate":str(row[2]),\n "rise_rate2":str(row[3]),\n "price1":str(row[4]),\n "price2":str(row[5]),\n "note_info":row[6],\n } for row in result]\n # print(center_data_list)\n # \u5c06\u5217\u8868\u8f6c\u6210json\u5b57\u7b26\u4e32\u6570\u636e\n # ensure_ascii=False\uff1a\u53d6\u6d88\u4f7f\u7528ASCII\u89e3\u7801\uff0c\u5219\u80fd\u5728\u63a7\u5236\u53f0\u663e\u793a\u4e2d\u6587\n json_str = json.dumps(center_data_list, ensure_ascii=False)\n print(json_str)\n # \u5173\u95ed\u6e38\u6807\n cursor.close()\n # \u5173\u95ed\u8fde\u63a5\n conn.close()\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [\n ("Server", "PWS\/1.1"),\n # \u6307\u5b9a\u7f16\u7801\u683c\u5f0f\uff0c\u56e0\u4e3a\u6ca1\u6709\u6a21\u677f\u6587\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u54cd\u5e94\u5934\u6307\u5b9a\u7f16\u7801\u683c\u5f0f\n ("Content-Type", "text\/html;charset=utf-8")\n ]\n return status, response_header, json_str\n\n\n\n@func_data("\/center.html")\ndef center():\n # \u72b6\u6001\u4fe1\u606f\n status = "200 OK"\n # \u54cd\u5e94\u5934\n response_header = [("Server", "PWS\/1.1")]\n # \u6253\u5f00\u6307\u5b9a\u7684\u6a21\u677f\u6587\u4ef6\uff0c\u8bfb\u53d6\u6a21\u677f\u6587\u4ef6\u4e2d\u7684\u6570\u636e\n with open("HTTP\u52a8\u6001\/center.html", "r", encoding='utf-8') as f:\n f_data = f.read()\n\n response_body = f_data.replace("{% content %}", "")\n # \u8fd9\u91cc\u8fd4\u56de\u7684\u662f\u5143\u7ec4\n return status, response_header, response_body\n\n# \u5904\u7406\u52a8\u6001\u8d44\u6e90\u8bf7\u6c42\ndef hande_request(evn):\n # \u83b7\u53d6\u52a8\u6001\u7684\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\n request_path = evn["user_name"]\n # \u904d\u5386\u8def\u7531\u5217\u8868\uff0c\u5339\u914d\u8bf7\u6c42\u7684url\n for path, func in route_list:\n if request_path == path:\n # \u627e\u5230\u4e86\u6307\u5b9a\u8def\u7531\uff0c\u6267\u884c\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\n result = func()\n return result\n else:\n # \u6ca1\u6709\u8fd9\u4e2a\u9875\u9762\uff0c\u8fd4\u56de404\u9875\u9762\n result = not_found()\n logging.error(f"\u6ca1\u6709\u8bbe\u7f6e\u76f8\u5173\u7684\u8def\u7531\u4fe1\u606f\uff1a{request_path}")\n return result\n\nif name == 'main':\n # \u6d4b\u8bd5\u88c5\u9970\u5668\u662f\u5426\u6210\u529f\u6dfb\u52a0\u8def\u7531\n print(route_list)\n # \u6d4b\u8bd5\u662f\u5426\u5f97\u5230\u4e2a\u4eba\u4e2d\u5fc3\u7684\u6570\u636e\n center_data()\n<\/code><\/pre>\n\u4e8c\u5341\u516d\u3001\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n 1.property\u5c5e\u6027<\/h3>\n property\u5c5e\u6027\u7684\u4ecb\u7ecd<\/h4>\nproperty\u5c5e\u6027\u5c31\u662f\u8d1f\u8d23\u628a\u4e00\u4e2a\u65b9\u6cd5\u5f53\u505a\u5c5e\u6027\u8fdb\u884c\u4f7f\u7528\uff0c\u8fd9\u6837\u505a\u53ef\u4ee5\u7b80\u5316\u4ee3\u7801<\/p>\n \u5b9a\u4e49property\u5c5e\u6027\u6709\u4e24\u79cd\u65b9\u5f0f<\/strong><\/p>\n \n\u88c5\u9970\u5668\u65b9\u5f0f<\/li>\n \u7c7b\u5c5e\u6027\u65b9\u5f0f<\/li>\n<\/ol>\n\u88c5\u9970\u5668\u65b9\u5f0f<\/h4>\nclass Student(object):\n def init(self):\n # \u5b9a\u4e49\u79c1\u6709\u5c5e\u6027age\n self.age = 0\n\n @property # \u5f53\u5bf9\u8c61\u8c03\u7528age\u5c5e\u6027\u7684\u65f6\u5019\uff0c\u4f1a\u6267\u884c\u4e0b\u9762\u7684\u65b9\u6cd5\n def age(self):\n print("\u83b7\u53d6\u5c5e\u6027")\n return self.age\n\n @age.setter # \u5f53\u5bf9\u8c61\u8c03\u7528age\u5c5e\u6027\u8bbe\u7f6e\u503c\u7684\u65f6\u5019\uff0c\u4f1a\u8c03\u7528\u4e0b\u9762\u7684\u65b9\u6cd5\n def age(self, new_age):\n print("\u8bbe\u7f6e\u5c5e\u6027")\n if new_age >= 0 and new_age <= 100:\n self.__age = new_age\n else:\n print("\u6210\u7cbe\u4e86\uff1f")\n\n\nstudent = Student()\nage = student.age\nprint(age)\nstudent.age = 37\nage = student.age\nprint(age)\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font>\u4f7f\u7528\u88c5\u9970\u5668\u65b9\u5f0f\u7684 property \u5c5e\u6027\uff0c\u90a3\u4e48\u65b9\u6cd5\u540d\u4fdd\u6301\u4e00\u81f4<\/strong><\/p>\n \u7c7b\u5c5e\u6027\u65b9\u5f0f<\/h4>\nclass Student(object):\n def init(self):\n # \u5b9a\u4e49\u79c1\u6709\u5c5e\u6027age\n self.__age = 0\n\n def get_age(self):\n print("\u83b7\u53d6\u5c5e\u6027")\n return self.__age\n\n def set_age(self, new_age):\n print("\u8bbe\u7f6e\u5c5e\u6027")\n if new_age >= 0 and new_age <= 100:\n self.__age = new_age\n else:\n print("\u6210\u7cbe\u4e86\uff1f")\n\n # get_age\uff1a\u8868\u793a\u83b7\u53d6age\u5c5e\u6027\u65f6\u6267\u884c\u7684\u65b9\u6cd5\n # set_age\uff1a\u8868\u793a\u8bbe\u7f6eage\u5c5e\u6027\u65f6\u6267\u884c\u7684\u65b9\u6cd5\n age = property(get_age, set_age)\n\n\nstudent = Student()\nage = student.age\nprint(age)\nstudent.age = 37\nage = student.age\nprint(age)\n<\/code><\/pre>\n2.with\u8bed\u53e5\u548c\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/h3>\n with\u8bed\u53e5\u7684\u4f7f\u7528<\/h4>\n\u57fa\u7840\u7248\u672c\u5411\u6587\u4ef6\u4e2d\u5199\u5165\u6570\u636e\u7684\u793a\u4f8b\uff1a<\/strong><\/p>\n # \u4ee5\u5199\u7684\u65b9\u5f0f\u6253\u5f00\u6587\u4ef6\nf = open("1.txt","w")\n# \u5199\u5165\u6587\u4ef6\u5185\u5bb9\nf.write("hello world")\n# \u5173\u95ed\u6587\u4ef6\nf.close()\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u6587\u4ef6\u4f7f\u7528\u5b8c\u540e\u5fc5\u987b\u5173\u95ed\uff0c\u56e0\u4e3a\u6587\u4ef6\u5bf9\u8c61\u4f1a\u5360\u6709\u64cd\u4f5c\u7cfb\u7edf\u7684\u8d44\u6e90\uff0c\u5e76\u4e14\u64cd\u4f5c\u7cfb\u7edf\u540c\u4e00\u65f6\u95f4\u80fd\u6253\u5f00\u7684\u6587\u4ef6\u6570\u91cf\u4e5f\u662f\u6709\u9650\u7684<\/li>\n<\/ul>\n\u8fd9\u79cd\u5199\u6cd5\u5b58\u5728\u4e00\u5b9a\u7684\u9519\u8bef\uff0c\u5982\u4e0b\uff1a<\/p>\n # \u4ee5\u53ea\u8bfb\u7684\u65b9\u5f0f\u6253\u5f00\nf = open("log.txt", "r")\n# \u5199\u5165\u6570\u636e\nf.write("hello")\nprint("over")\n# \u5173\u95ed\u6587\u4ef6\nf.close()\n<\/code><\/pre>\n\u8fd9\u65f6\u5019\u7a0b\u5e8f\u65e0\u6cd5\u8fd0\u884c\u5e76\u62a5\u9519\uff0c\u4e14\u6587\u4ef6\u65e0\u6cd5\u91ca\u653e\u7ee7\u7eed\u5360\u7528\u7cfb\u7edf\u7f13\u5b58\uff0c\u9700\u8981\u6dfb\u52a0\u5f02\u5e38\uff1a<\/p>\n try:\n # \u4ee5\u53ea\u8bfb\u7684\u65b9\u5f0f\u6253\u5f00\n f = open("log.txt", "r")\n # \u5199\u5165\u6570\u636e\n f.write("hello")\nexcept Exception as e:\n print(e)\nfinally:\n print("over")\n # \u5173\u95ed\u6587\u4ef6\n f.close()\n<\/code><\/pre>\nwith\u8bed\u53e5\u65e2\u7b80\u5355\u53c8\u5b89\u5168\uff0c\u5e76\u4e14with\u8bed\u53e5\u6267\u884c\u5b8c\u6210\u540e\u81ea\u52a8\u8c03\u7528\u5173\u95ed\u6587\u4ef6\u64cd\u4f5c\uff0c\u5373\u4f7f\u51fa\u73b0\u5f02\u5e38\u4e5f\u4f1a\u81ea\u52a8\u8c03\u7528\u5173\u95ed\u6587\u4ef6\u64cd\u4f5c<\/strong><\/p>\n \u793a\u4f8b\uff1a<\/strong><\/p>\n with open("log.txt","r") as f:\n f_data = f.read()\n # \u5199\u5165\u6587\u4ef6\u65f6\uff0c\u5373\u4f7f\u4f1a\u62a5\u9519\uff0c\u4e5f\u4f1a\u5173\u95ed\u6587\u4ef6\n # f.write("aaaa")\n print(f_data)\n<\/code><\/pre>\n\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/h4>\n\u4e00\u4e2a\u7c7b\u53ea\u8981\u5b9e\u73b0\u4e86enter()<\/code>\u548cexit()<\/code>\u8fd9\u4e24\u4e2a\u65b9\u6cd5\uff0c\u901a\u8fc7\u8be5\u7c7b\u521b\u5efa\u7684\u5bf9\u8c61\u6211\u4eec\u5c31\u79f0\u4e4b\u4e3a\u4e0a\u4e0b\u7ba1\u7406\u5668<\/p>\n \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u53ef\u4ee5\u4f7f\u7528 with \u8bed\u53e5\uff0cwith \u8bed\u53e5\u4e4b\u6240\u4ee5\u90a3\u4e48\u5f3a\u5927\uff0c\u80cc\u540e\u662f\u7531\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u505a\u652f\u6491\u7684<\/strong>\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e0a\u9762\u4f7f\u7528 open \u51fd\u6570\u521b\u5efa\u6587\u4ef6\u5bf9\u8c61\u5c31\u662f\u4e00\u4e2a\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u5bf9\u8c61<\/p>\n \u81ea\u5b9a\u4e49\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u7c7b\uff0c\u6a21\u62df\u6587\u4ef6\u64cd\u4f5c<\/p>\n \u5b9a\u4e49\u4e00\u4e2a File \u7c7b\uff0c\u5b9e\u73b0enter()<\/code>\u548cexit()<\/code>\u65b9\u6cd5\uff0c\u4f7f\u7528 with \u8bed\u53e5\u6765\u5b8c\u6210\u64cd\u4f5c\u6587\u4ef6\uff0c\u793a\u4f8b\uff1a<\/p>\n # \u81ea\u5b9a\u4e49\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u7c7b\nclass File(object):\n # \u521d\u59cb\u5316\u65b9\u6cd5\n def init(self, file_name, file_mode):\n # \u6587\u4ef6\u540d\n self.file_name = file_name\n # \u6587\u4ef6\u7684\u6253\u5f00\u65b9\u5f0f\n self.file_mode = file_mode\n\n # \u4e0a\u6587\u65b9\u6cd5\uff0c\u8d1f\u8d23\u8fd4\u56de\u64cd\u4f5c\u5bf9\u8c61\u8d44\u6e90\uff0c\u6bd4\u5982\u6587\u4ef6\u5bf9\u8c61\uff0c\u6570\u636e\u5e93\u8fde\u63a5\u5bf9\u8c61\n def enter(self):\n print("\u6267\u884c\u4e0a\u6587\u65b9\u6cd5")\n self.file = open(self.file_name, self.file_mode)\n return self.file\n\n # \u5f53 with \u8bed\u53e5\u6267\u884c\u5b8c\u6210\u4ee5\u540e\uff0c\u81ea\u52a8\u6267\u884c exit()\u65b9\u6cd5\n # \u4e0b\u6587\u65b9\u6cd5\uff0c\u8d1f\u8d23\u91ca\u653e\u5bf9\u8c61\u8d44\u6e90\uff0c\u5173\u95ed\u6587\u4ef6\uff0c\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\u5bf9\u8c61\n def exit(self, exc_type, exc_val, exc_tb):\n print("\u6267\u884c\u4e0b\u6587\u65b9\u6cd5")\n self.file.close()\n\nif name == 'main':\n # with \u8bed\u53e5\u7ed3\u5408\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u5bf9\u8c61\u4f7f\u7528\n with File("log.txt", "r") as f:\n file_data = f.read()\n print(file_data)\n # f.write("hhh")\n<\/code><\/pre>\n\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u7684\u53e6\u5916\u4e00\u79cd\u5b9e\u73b0\u65b9\u5f0f<\/h4>\n\u5047\u5982\u60f3\u8ba9\u4e00\u4e2a\u51fd\u6570\u79f0\u4e3a\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff0cPython \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a@contextmanager<\/code>\u7684\u88c5\u9970\u5668\uff0c\u66f4\u8fdb\u4e00\u6b65\u7b80\u5316\u4e86\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u901a\u8fc7 yield \u5c06\u51fd\u6570\u5206\u5272\u6210\u4e24\u90e8\u5206\uff0cyield \u4e0a\u9762\u7684\u8bed\u53e5\u5728enter<\/code>\u65b9\u6cd5\u4e2d\u6267\u884c\uff0cyield \u4e0b\u9762\u7684\u8bed\u53e5\u5728exit<\/code>\u65b9\u6cd5\u4e2d\u6267\u884c\uff0c\u7d27\u8ddf\u5728 yield \u540e\u9762\u7684\u53c2\u6570\u662f\u51fd\u6570\u7684\u8fd4\u56de\u503c<\/p>\n # \u5bfc\u5165\u6a21\u5757\nfrom contextlib import contextmanager\n\n# \u52a0\u4e0a\u88c5\u9970\u5668\u8fd9\u4e2a\u4ee3\u7801\uff0c\u90a3\u4e48\u4e0b\u9762\u51fd\u6570\u521b\u5efa\u7684\u5bf9\u8c61\u5c31\u662f\u4e00\u4e2a\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\n@contextmanager\ndef my_open(file_name, file_mode):\n try:\n file = open(file_name, file_mode)\n # yield \u5173\u952e\u5b57\u4e4b\u524d\u7684\u4ee3\u7801\u53ef\u4ee5\u8ba4\u4e3a\u662f\u4e0a\u6587\u65b9\u6cd5\uff0c\u8d1f\u8d23\u8fd4\u56de\u64cd\u4f5c\u5bf9\u8c61\u8d44\u6e90\n yield file\n except Exception as e:\n print(e)\n finally:\n # yield \u5173\u952e\u5b57\u4e4b\u540e\u7684\u4ee3\u7801\u53ef\u4ee5\u8ba4\u4e3a\u662f\u4e0b\u6587\u65b9\u6cd5\uff0c\u8d1f\u8d23\u91ca\u653e\u64cd\u4f5c\u5bf9\u8c61\u7684\u8d44\u6e90\n print("over")\n file.close()\n\n# \u666e\u901a\u51fd\u6570\u4e0d\u80fd\u7ed3\u5408with\u8bed\u53e5\u4f7f\u7528\uff0cwith\u8bed\u53e5\u7ed3\u5408\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u4f7f\u7528\nwith my_open("log.txt", "r") as f:\n file_data = f.read()\n print(file_data)\n<\/code><\/pre>\n3.\u751f\u6210\u5668\u7684\u521b\u5efa\u65b9\u5f0f<\/h3>\n \u751f\u6210\u5668\u7684\u4ecb\u7ecd<\/h4>\n\u6839\u636e\u7a0b\u5e8f\u5458\u5236\u5b9a\u7684\u89c4\u5219\u5faa\u73af\u751f\u6210\u6570\u636e\uff0c\u5f53\u6761\u4ef6\u4e0d\u6210\u7acb\u65f6\uff0c\u5219\u751f\u6210\u6570\u636e\u7ed3\u675f\uff0c\u6570\u636e\u4e0d\u662f\u4e00\u6b21\u6027\u5168\u90e8\u751f\u6210\u5904\u7406\uff0c\u800c\u662f\u4f7f\u7528\u4e00\u4e2a\uff0c\u518d\u751f\u6210\u4e00\u4e2a\uff0c\u53ef\u4ee5\u8282\u7ea6\u5927\u91cf\u7684\u5185\u5b58<\/strong><\/p>\n \u521b\u5efa\u751f\u6210\u5668\u7684\u65b9\u6cd5<\/h4>\n\n\u751f\u6210\u5668\u63a8\u5bfc\u5f0f<\/li>\n yield<\/code>\u5173\u952e\u5b57<\/li>\n<\/ol>\n\u751f\u6210\u5668\u63a8\u5bfc\u5f0f<\/strong><\/p>\n \n\u4e0e\u5217\u8868\u63a8\u5bfc\u5f0f\u7c7b\u4f3c\uff0c\u53ea\u4e0d\u8fc7\u751f\u6210\u5668\u63a8\u5bfc\u5f0f\u4f7f\u7528\u5c0f\u62ec\u53f7<\/li>\n<\/ul>\n# \u751f\u6210\u5668\u63a8\u5bfc\u5f0f\nmy_generator = (x2 for x in range(3))\nprint(my_generator)\n\n# \u751f\u6210\u5668\u53d6\u503c\u4f7f\u7528next\u51fd\u6570\u83b7\u53d6\u751f\u6210\u5668\u4e2d\u7684\u4e0b\u4e00\u4e2a\u503c\n# \u65b9\u6cd5\u4e00\n# # \u53d6\u7b2c\u4e00\u4e2a\u503c\n# value = next(my_generator)\n# print(value)\n# # \u53d6\u7b2c\u4e8c\u4e2a\u503c\n# value = next(my_generator)\n# print(value)\n# # \u53d6\u7b2c\u4e09\u4e2a\u503c\n# value = next(my_generator)\n# print(value)\n# # \u5f53\u751f\u6210\u5668\u6ca1\u6709\u503c\u65f6\uff0c\u4f1a\u629b\u51faStopIteration\uff0c\u8868\u793a\u751f\u6210\u5668\u751f\u6210\u6570\u636e\u5b8c\u6bd5\n# value = next(my_generator)\n# print(value)\n\n# \u65b9\u6cd5\u4e8c\n# while True:\n# try:\n# value = next(my_generator)\n# print(value)\n# except StopIteration as e:\n# # \u8df3\u51fa\u5faa\u73af\u8868\u793a\u53d6\u503c\u5b8c\u6210\n# break\n\n# \u65b9\u6cd5\u4e09\n# for\u5faa\u73af\u5185\u90e8\u8c03\u7528next\u51fd\u6570\u83b7\u53d6\u751f\u6210\u5668\u4e2d\u7684\u4e0b\u4e00\u4e2a\u503c\uff0c\u5f53\u51fa\u73b0\u5f02\u5e38for\u5faa\u73af\u5185\u90e8\u81ea\u52a8\u8fdb\u884c\u4e86\u5f02\u5e38\u6355\u83b7\nfor value in my_generator:\n print(value)\n<\/code><\/pre>\nyield<\/code>\u5173\u952e\u5b57<\/strong><\/p>\n # yield \u5173\u952e\u5b57\n# \u5728\u51fd\u6570\u5185\u770b\u5230\u6709yield\u5173\u952e\u5b57\uff0c\u90a3\u4e48\u8fd9\u4e2a\u51fd\u6570\u5c31\u662f\u4e00\u4e2a\u751f\u6210\u5668\ndef my_generator():\n for i in range(3):\n print('\u5f00\u59cb\u751f\u6210\u6570\u636e...')\n # \u5f53\u7a0b\u5e8f\u6267\u884c\u5230yield\u5173\u952e\u5b57\u7684\u65f6\u5019\uff0c\u4ee3\u7801\u4f1a\u6682\u505c\u5e76\u628a\u7ed3\u679c\u8fd4\u56de\uff0c\u518d\u6b21\u542f\u52a8\u751f\u6210\u5668\u7684\u65f6\u5019\uff0c\u4f1a\u5728\u6682\u505c\u7684\u4f4d\u7f6e\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\n yield i\n print('\u751f\u6210\u5b8c\u6210...')\n\nresult = my_generator()\nprint(result)\n\n# \u83b7\u53d6\u751f\u6210\u5668\u4e0b\u4e00\u4e2a\u503c\n# value = next(result)\n# print(value)\n# value = next(result)\n# print(value)\n# value = next(result)\n# print(value)\n\nfor value in result:\n print(value)\n<\/code><\/pre>\n\u8bf4\u660e\uff1a<\/strong><\/p>\n \nnext<\/code>\u51fd\u6570\uff1a\u83b7\u53d6\u751f\u6210\u5668\u4e2d\u4e0b\u4e00\u4e2a\u503c<\/li>\n<\/ul>\n\u751f\u6210\u5668\u7684\u4f7f\u7528\u573a\u666f<\/h4>\n\u6570\u5b66\u4e2d\u6709\u4e2a\u8457\u540d\u7684\u6590\u6ce2\u90a3\u5951\u6570\u5217(Fibonacci)\uff0c\u6570\u5217\u4e2d\u7684\u7b2c\u4e00\u4e2a\u6570\u4e3a0\uff0c\u7b2c\u4e8c\u4e2a\u6570\u4e3a1\uff0c\u5176\u540e\u7684\u6bcf\u4e2a\u6570\u90fd\u53ef\u4ee5\u7531\u524d\u4e24\u4e2a\u6570\u76f8\u52a0\u5f97\u5230\uff1a<\/p>\n 0,1,1,2,3,5,8,13.21.34,...<\/code><\/p>\n \u73b0\u5728\u6211\u4eec\u4f7f\u7528\u751f\u6210\u5668\u6765\u5b9e\u73b0\u8fd9\u4e2a\u6590\u6ce2\u90a3\u5951\u6570\u5217\uff0c\u6bcf\u6b21\u53d6\u503c\u90fd\u901a\u8fc7\u7b97\u6cd5\u6765\u751f\u6210\u4e0b\u4e00\u4e2a\u6570\u636e\uff0c\u751f\u6210\u5668\u6bcf\u6b21\u8c03\u7528\u53ea\u751f\u6210\u4e00\u4e2a\u6570\u636e\uff0c\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u5185\u5b58<\/strong><\/p>\n # num \u8868\u793a\u751f\u6210\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u4e2a\u6570\ndef fibonacci(num):\n # \u521d\u59cb\u5316\u524d\u4e24\u4e2a\u503c\n a = 0\n b = 1\n # \u8bb0\u5f55\u6bcf\u6b21\u751f\u6210\u6570\u636e\u4e2a\u6570\u7684\u7d22\u5f15\n current_index = 0\n # \u5faa\u73af\u5224\u65ad\u6761\u4ef6\u662f\u5426\u6210\u7acb\n while current_index < num:\n result = a\n # \u6761\u4ef6\u6210\u7acb\uff0c\u4ea4\u6362\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\n a, b = b, a + b\n current_index += 1\n yield result\n\n# \u521b\u5efa\u751f\u6210\u5668\nvalues = fibonacci(9)\nfor value in values:\n print(value)\n<\/code><\/pre>\n4.\u6df1\u62f7\u8d1d\u548c\u6d45\u62f7\u8d1d<\/h3>\n \u6d45\u62f7\u8d1d<\/h4>\ncopy<\/code>\u51fd\u6570\u662f\u6d45\u62f7\u8d1d\uff0c\u53ea\u5bf9\u53ef\u53d8\u7c7b\u578b\u7684\u7b2c\u4e00\u5c42\u5bf9\u8c61\u8fdb\u884c\u62f7\u8d1d\uff0c\u5bf9\u62f7\u8d1d\u7684\u5bf9\u8c61\u5f00\u8f9f\u65b0\u7684\u5185\u5b58\u7a7a\u95f4\u8fdb\u884c\u5b58\u50a8\uff0c\u4e0d\u4f1a\u62f7\u8d1d\u5bf9\u8c61\u5185\u90e8\u7684\u5b50\u5bf9\u8c61<\/p>\n \u4e0d\u53ef\u53d8\u7c7b\u578b\u7684\u6d45\u62f7\u8d1d\u793a\u4f8b\uff1a<\/strong><\/p>\n # \u5bfc\u5165\u6a21\u5757\nimport copy\n# \u4e0d\u53ef\u53d8\u7c7b\u578b\uff1a\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u3001\u5143\u7ec4\n\nnum1 = 1\n\n# copy()\u8868\u793a\u662f\u4e00\u4e2a\u6d45\u62f7\u8d1d\u51fd\u6570\n# \u6d45\u62f7\u8d1d\nnum2 = copy.copy(num1)\n# \u67e5\u770b\u540e\uff0c\u5185\u5b58\u5730\u5740\u6ca1\u6709\u53d1\u751f\u53d8\u5316\uff0c\u8bf4\u660e\u6ca1\u6709\u5bf9\u5bf9\u8c61\u8fdb\u884c\u62f7\u8d1d\uff0c\u4e5f\u5c31\u662f\u8bf4\u6ca1\u6709\u5f00\u8f9f\u65b0\u7684\u5185\u5b58\u7a7a\u95f4\nprint("num1:", id(num1),"num2:", id(num2))\n# \u5bf9\u4e0d\u53ef\u53d8\u7c7b\u578b\u8fdb\u884c\u6d45\u62f7\u8d1d\uff0c\u5b9e\u9645\u4e0a\u662f\u5bf9\u5f15\u7528\u7684\u4e00\u4e2a\u62f7\u8d1d\uff0c\u4e24\u4e2a\u53d8\u91cf\u6307\u5411\u540c\u4e00\u4e2a\u5185\u5b58\u5730\u5740\n\nmy_tuple1 = (1,2)\nmy_tuple2 = copy.copy(my_tuple1)\nprint("my_tuple:", id(my_tuple1),"my_tuple2:", id(my_tuple2))\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n num1: 140713757680760 num2: 140713757680760\nmy_tuple1: 2254377987328 my_tuple2: 2254377987328\n<\/code><\/pre>\n\u7ed3\u8bba\uff1a<\/strong><\/p>\n \n\u6d45\u62f7\u8d1d\u4e0d\u4f1a\u5bf9\u4e0d\u53ef\u53d8\u7c7b\u578b\u8fdb\u884c\u62f7\u8d1d\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e0d\u4f1a\u5f00\u8f9f\u65b0\u7684\u5185\u5b58\u7a7a\u95f4<\/li>\n<\/ul>\n\u53ef\u53d8\u7c7b\u578b\u7684\u6d45\u62f7\u8d1d\u793a\u4f8b\uff1a<\/strong><\/p>\n # \u5bfc\u5165\u6a21\u5757\nimport copy\n# \u53ef\u53d8\u7c7b\u578b\uff1a\u5217\u8868\u3001\u5b57\u5178\u3001\u96c6\u5408\nmy_list1 = [1,99,[2,3,4]]\nmy_list2 = copy.copy(my_list1)\nprint("my_list1:",id(my_list1),"my_list2:",id(my_list2))\nmy_list1.append(100)\nprint("my_list1 = ",my_list1)\nprint("my_list2 = ",my_list2)\n\n# \u5b50\u5143\u7d20\u6307\u5411\u540c\u4e00\u5185\u5b58\u5730\u5740\nprint("my_list1[2]:",id(my_list1[2]),"my_list2[2]",id(my_list2[2]))\nmy_list1[2].append(6)\nprint("my_list1 = ",my_list1)\nprint("my_list2 = ",my_list2)\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n my_list1: 2119685538240 my_list2: 2119686127872\nmy_list1 = [1, 99, [2, 3, 4], 100]\nmy_list2 = [1, 99, [2, 3, 4]]\nmy_list1[2]: 2119684650432 my_list2[2] 2119684650432\nmy_list1 = [1, 99, [2, 3, 4, 6], 100]\nmy_list2 = [1, 99, [2, 3, 4, 6]]\n<\/code><\/pre>\n\u53ef\u53d8\u7c7b\u578b\u7684\u6d45\u62f7\u8d1d\u8bf4\u660e\uff1a<\/strong><\/p>\n \n\u901a\u8fc7\u4e0a\u9762\u7684\u6267\u884c\u7ed3\u679c\u53ef\u4ee5\u5f97\u77e5\uff0c\u53ef\u53d8\u7c7b\u578b\u8fdb\u884c\u6d45\u62f7\u8d1d\u53ea\u5bf9\u53ef\u53d8\u7c7b\u578b\u7684\u7b2c\u4e00\u5c42\u5bf9\u8c61\u8fdb\u884c\u62f7\u8d1d\uff0c\u5bf9\u62f7\u8d1d\u7684\u5bf9\u8c61\u4f1a\u5f00\u8f9f\u65b0\u7684\u5185\u5b58\u7a7a\u95f4\u8fdb\u884c\u5b58\u50a8\uff0c\u5b50\u5bf9\u8c61\u4e0d\u8fdb\u884c\u62f7\u8d1d<\/li>\n<\/ul>\n\u6df1\u62f7\u8d1d<\/h4>\ndeepcopy<\/code>\u51fd\u6570\u662f\u6df1\u62f7\u8d1d\uff0c\u53ea\u8981\u53d1\u73b0\u5bf9\u8c61\u6709\u53ef\u53d8\u7c7b\u578b\u5c31\u4f1a\u5bf9\u8be5\u5bf9\u8c61\u5230\u6700\u540e\u4e00\u4e2a\u53ef\u53d8\u7c7b\u578b\u7684\u6bcf\u4e00\u5c42\u5bf9\u8c61\u8fdb\u884c\u62f7\u8d1d\uff0c\u5bf9\u6bcf\u4e00\u5c42\u62f7\u8d1d\u7684\u5bf9\u8c61\u90fd\u4f1a\u5f00\u8f9f\u65b0\u7684\u5185\u5b58\u7a7a\u95f4\u8fdb\u884c\u5b58\u50a8<\/p>\n \u4e0d\u53ef\u53d8\u7c7b\u578b\u7684\u6df1\u62f7\u8d1d\u793a\u4f8b\uff1a<\/strong><\/p>\n # \u5bfc\u5165\u6a21\u5757\nimport copy\n\n# \u4e0d\u53ef\u53d8\u7c7b\u578b\uff1a\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u3001\u5143\u7ec4(\u5185\u90e8\u4e0d\u5305\u542b\u53ef\u53d8\u7c7b\u578b\u5143\u7d20)\nnum1 = 2\nnum2 = copy.deepcopy(num1)\nprint("num1:", id(num1))\nprint("num2:", id(num2))\n\nstr1 = "hello"\nstr2 = copy.deepcopy(str1)\nprint("str1:", id(str1))\nprint("str2:", id(str2))\n\n# \u5143\u7ec4\u5185\u4e0d\u5305\u542b\u53ef\u53d8\u7c7b\u578b\ntuple1 = (1, 2, 5)\ntuple2 = copy.deepcopy(tuple1)\nprint("tuple1:", id(tuple1))\nprint("tuple2:", id(tuple2))\n\n# \u5143\u7ec4\u5185\u5305\u542b\u53ef\u53d8\u7c7b\u578b\ntuple3 = (1, 2, [1,2,3,4,5])\ntuple4 = copy.deepcopy(tuple3)\nprint("tuple3:", id(tuple3))\nprint("tuple4:", id(tuple4))\ntuple3[2].append(6)\nprint("tuple3 = ",tuple3)\nprint("tuple4 = ",tuple4)\n# \u5176\u4e2d\u5217\u8868\u5185\u5b58\u5730\u5740\nprint("tuple3_list:", id(tuple3[2]))\nprint("tuple4_list:", id(tuple4[2]))\n# \u5176\u4e2d1\u7684\u5185\u5b58\u5730\u5740\nprint("tuple3_tuple:", id(tuple3[1]))\nprint("tuple4_tuple:", id(tuple4[1]))\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n num1: 140713757680792\nnum2: 140713757680792\nstr1: 2405597593296\nstr2: 2405597593296\ntuple1: 2405327734960\ntuple2: 2405327734960\ntuple3: 2405608245264\ntuple4: 2405597714032\ntuple3 = (1, 2, [1, 2, 3, 4, 5, 6])\ntuple4 = (1, 2, [1, 2, 3, 4, 5])\ntuple3_list: 2405320619456\ntuple4_list: 2405322096896\ntuple3_tuple: 140713757680792\ntuple4_tuple: 140713757680792\n<\/code><\/pre>\n\u6ce8\uff1a<\/strong><\/font><\/p>\n \n\u4e0d\u53ef\u53d8\u7c7b\u578b\u4e00\u822c\u4e0d\u62f7\u8d1d(\u62f7\u8d1d\u6ca1\u6709\u610f\u4e49)<\/li>\n \u5143\u7ec4\u5185\u7684\u6570\u636e\uff0c\u5982(1, [1,2])<\/code>\n\n\u5176\u4e2d1<\/code>\u548c\u62f7\u8d1d\u540e\u76841<\/code>\u5185\u5b58\u7a7a\u95f4\u5730\u5740\u76f8\u540c<\/li>\n \u5b50\u5bf9\u8c61[1,2]<\/code>\u62f7\u8d1d\u540e\u7684\u5185\u5b58\u7a7a\u95f4\u5730\u5740\u4e0d\u540c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\u53ef\u53d8\u7c7b\u578b\u7684\u6df1\u62f7\u8d1d\u793a\u4f8b\uff1a<\/strong><\/p>\n # \u5bfc\u5165\u6a21\u5757\nimport copy\n\n# \u53ef\u53d8\u7c7b\u578b\uff1a\u5217\u8868\u3001\u5b57\u5178\u3001\u96c6\u5408\nlist1 = [1,2,[3,4]]\nlist2 = copy.deepcopy(list1)\nprint('list1:',id(list1))\nprint('list2:',id(list2))\n# \u5b50\u5bf9\u8c61\u7684\u5185\u5b58\u7a7a\u95f4\u5730\u5740\nprint('list1\u5b50\u5bf9\u8c61:',id(list1[2]))\nprint('list2\u5b50\u5bf9\u8c61:',id(list2[2]))\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n list1: 1595591852480\nlist2: 1595592442112\nlist1\u5b50\u5143\u7d20: 1595590833600\nlist2\u5b50\u5143\u7d20: 1595592068800\n<\/code><\/pre>\n\u6df1\u62f7\u8d1d\u548c\u6d45\u62f7\u8d1d\u7684\u533a\u522b\uff1a<\/strong><\/p>\n \n\u6d45\u62f7\u8d1d\u6700\u591a\u62f7\u8d1d\u5bf9\u8c61\u7684\u4e00\u5c42<\/li>\n \u6df1\u62f7\u8d1d\u53ef\u4ee5\u62f7\u8d1d\u5bf9\u8c61\u7684\u591a\u5c42<\/li>\n<\/ul>\n5.\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6982\u8ff0<\/h3>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4ecb\u7ecd<\/h4>\n\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u6709\u67e5\u627e\u7b26\u5408\u67d0\u4e9b\u8d1f\u8d23\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u7684\u9700\u8981\uff0c\u6bd4\u5982\uff1a\u90ae\u7bb1\u3001\u56fe\u7247\u3001\u624b\u673a\u53f7\u7801\u7b49\uff0c\u8fd9\u4e2a\u65f6\u5019\u60f3\u5339\u914d\u6216\u8005\u67e5\u627e\u7b26\u5408\u67d0\u4e9b\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u5c31\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u4e86<\/p>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u6982\u5ff5<\/h4>\n\u6b63\u5219\u8868\u8fbe\u5f0f\u5c31\u662f\u8bb0\u5f55\u6587\u672c\u89c4\u5219\u7684\u4ee3\u7801<\/strong><\/p>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6837\u5b50<\/h4>\n0d{2}-d{8}<\/code>\u8fd9\u4e2a\u5c31\u662f\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u8868\u8fbe\u7684\u610f\u601d\u662f\u5339\u914d\u7684\u5ea7\u673a\u53f7\u7801<\/p>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u7279\u70b9<\/h4>\n\n\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\u5f88\u4ee4\u4eba\u5934\u75bc\uff0c\u53ef\u8bfb\u6027\u5dee<\/li>\n \u6b63\u5219\u8868\u8fbe\u5f0f\u901a\u7528\u6027\u5f88\u5f3a\uff0c\u80fd\u591f\u9002\u7528\u4e8e\u5f88\u591a\u7f16\u7a0b\u8bed\u8a00<\/li>\n<\/ul>\n\u603b\u7ed3<\/h4>\n\n\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u5339\u914d\u7b26\u5408\u67d0\u4e9b\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u6570\u636e<\/li>\n<\/ul>\n6.re\u7684\u6a21\u5757\u4ecb\u7ecd<\/h3>\n re\u6a21\u5757\u7684\u4ecb\u7ecd<\/h4>\n\u5728Python\u4e2d\u9700\u8981\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5339\u914d\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2are<\/code>\u6a21\u5757<\/p>\n re\u6a21\u5757\u7684\u4f7f\u7528<\/h4>\nimport re\n\n# \u6839\u636e\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u6570\u636e\n# \u7b2c\u4e00\u4e2a\u53c2\u6570\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f\n# \u7b2c\u4e8c\u4e2a\u53c2\u6570\uff1a\u8981\u5339\u914d\u7684\u5b57\u7b26\u4e32\n# \u8fd4\u56de\u5339\u914d\u5bf9\u8c61\nmatch_ojb = re.match("hel","hello")\n# \u83b7\u53d6\u5339\u914d\u7ed3\u679c\nresult = match_ojb.group()\nprint(result)\n<\/code><\/pre>\n\u8fd0\u884c\u7ed3\u679c\uff1a<\/strong><\/p>\n hel\n<\/code><\/pre>\n\u603b\u7ed3\uff1a<\/strong><\/p>\n \nre.match()<\/code>\uff1a\u6839\u636e\u6b63\u5219\u8868\u8fbe\u5f0f\u4ece\u5934\u5f00\u59cb\u5339\u914d\u5b57\u7b26\u4e32\u6570\u636e<\/li>\n<\/ul>\n7.\u5339\u914d\u5355\u4e2a\u5b57\u7b26<\/h3>\n \u5339\u914d\u5355\u4e2a\u5b57\u7b26<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\u4ee3\u7801<\/th>\n \u529f\u80fd<\/th>\n<\/tr>\n<\/thead>\n .<\/code><\/td>\n \u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26(\u9664\u4e86n<\/code>)<\/td>\n<\/tr>\n []<\/code><\/td>\n \u5339\u914d[]<\/code>\u4e2d\u5217\u4e3e\u7684\u5b57\u7b26<\/td>\n<\/tr>\n d<\/code><\/td>\n \u5339\u914d\u6570\u5b57\uff0c\u53730 – 9<\/td>\n<\/tr>\n D<\/code><\/td>\n \u5339\u914d\u975e\u6570\u5b57\uff0c\u5373\u4e0d\u662f\u6570\u5b57<\/td>\n<\/tr>\n s<\/code><\/td>\n \u5339\u914d\u7a7a\u767d\uff0c\u5373\u7a7a\u683c\u3001tab\u952e(t<\/code>)<\/td>\n<\/tr>\n S<\/code><\/td>\n \u5339\u914d\u975e\u7a7a\u767d<\/td>\n<\/tr>\n w<\/code><\/td>\n \u5339\u914d\u975e\u7279\u6b8a\u5b57\u7b26\uff0c\u5373a-z<\/code>\u3001A-Z<\/code>\u30010-9<\/code>\u3001_<\/code>\u3001\u6c49\u5b57<\/code><\/td>\n<\/tr>\n W<\/code><\/td>\n \u5339\u914d\u7279\u6b8a\u5b57\u7b26\uff0c\u5373\u975e\u5b57\u6bcd\u3001\u975e\u6570\u5b57\u3001\u975e\u6c49\u5b57\u3001\u975e\u4e0b\u5212\u7ebf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n import re\n\n# . \uff1a\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26(\u9664\u4e86`n`)\nmatch_obj = re.match("t.o","two")\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# []\uff1a\u5339\u914d`[]`\u4e2d\u5217\u4e3e\u7684\u5b57\u7b26\nmatch_obj = re.match("\u846b\u82a6\u5a03[1234]","\u846b\u82a6\u5a032")\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# d\uff1a\u5339\u914d\u6570\u5b57\uff0c\u53730 - 9\n# \u5339\u914d\u94f6\u884c\u5361\u5bc6\u7801\u4e2d\u7684\u5176\u4e2d\u4e00\u4f4d\u3011\n# \u5199\u6cd51\n# match_obj = re.match("[0123456789]","7")\n# \u5199\u6cd52\n# match_obj = re.match("[0-9]","7")\nmatch_obj = re.match("\\d","7") # SyntaxWarning\u5f02\u5e38\n# match_obj = re.match("\\d","7") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# D\uff1a\u5339\u914d\u975e\u6570\u5b57\uff0c\u5373\u4e0d\u662f\u6570\u5b57\n# match_obj = re.match("D","7") # SyntaxWarning\u5f02\u5e38\nmatch_obj = re.match("\\D","7") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# s\uff1a\u5339\u914d\u7a7a\u767d\uff0c\u5373\u7a7a\u683c\u3001tab\u952e(t)\n# match_obj = re.match("\u846b\u82a6\u5a03sd","\u846b\u82a6\u5a03 1") # SyntaxWarning\u5f02\u5e38\nmatch_obj = re.match("\u846b\u82a6\u5a03\\s\\d","\u846b\u82a6\u5a03 1") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# S\uff1a\u5339\u914d\u975e\u7a7a\u767d\nmatch_obj = re.match("\u846b\u82a6\u5a03\\S\\d","\u846b\u82a6\u5a03 1") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n \n\n# w\uff1a\u5339\u914d\u975e\u7279\u6b8a\u5b57\u7b26\uff0c\u5373a-z\u3001A-Z\u30010-9\u3001_\u3001\u6c49\u5b57\n# \u5339\u914d\u67d0\u7f51\u7ad9\u4e2d\u5bc6\u7801\u4e2d\u7684\u5176\u4e2d\u4e00\u4f4d\uff1a\u5bc6\u7801\u662f\u7531\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\u7ec4\u6210\n# match_obj = re.match("w","_") # SyntaxWarning\u5f02\u5e38\nmatch_obj = re.match("\\w","_") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# W\uff1a\u5339\u914d\u7279\u6b8a\u5b57\u7b26\uff0c\u5373\u975e\u5b57\u6bcd\u3001\u975e\u6570\u5b57\u3001\u975e\u6c49\u5b57\u3001\u975e\u4e0b\u5212\u7ebf\n# match_obj = re.match("W","%") # SyntaxWarning\u5f02\u5e38\nmatch_obj = re.match("\\W","%") # \u4e0d\u4f1a\u63d0\u793a\u62a5\u9519\n# match_obj\u4e3a\u975e\u7a7a\u5c31\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\nif match_obj:\n # \u83b7\u53d6\u5339\u914d\u7ed3\u679c\n result = match_obj.group()\n print(result)\nelse:\n # \u5339\u914d\u5931\u8d25\uff0c\u90a3\u4e48match_obj=None\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n8.\u5339\u914d\u591a\u4e2a\u5b57\u7b26<\/h3>\n\n\n\n\n\n\n\n\n\n\u4ee3\u7801<\/th>\n \u529f\u80fd<\/th>\n<\/tr>\n<\/thead>\n <\/code><\/td>\n \u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b00\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u5373\u53ef\u6709\u53ef\u65e0<\/td>\n<\/tr>\n +<\/code><\/td>\n \u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b01\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u5373\u81f3\u5c11\u67091\u6b21<\/td>\n<\/tr>\n ?<\/code><\/td>\n \u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b00\u6b21\u6216\u80051\u6b21\uff0c\u5373\u8981\u4e48\u6709\u4e00\u6b21\uff0c\u8981\u4e48\u6ca1\u6709<\/td>\n<\/tr>\n {m}<\/code><\/td>\n \u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0m\u6b21<\/td>\n<\/tr>\n {m,n}<\/code><\/td>\n \u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0\u4ecem\u5230n\u6b21<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n import re\n\n# \uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b00\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u5373\u53ef\u6709\u53ef\u65e0\n# match_obj = re.match("two", "twwwwwwwo")\nmatch_obj = re.match("t.o", "tsfddfdo")\n# match_obj = re.match("t.o", "to")\nif match_obj:\n result = match_obj.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# +\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b01\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u5373\u81f3\u5c11\u67091\u6b21\nmatch_obj = re.match("t.+o", "to")\nif match_obj:\n result = match_obj.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# \uff1f\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b00\u6b21\u6216\u80051\u6b21\uff0c\u5373\u8981\u4e48\u6709\u4e00\u6b21\uff0c\u8981\u4e48\u6ca1\u6709\n# match_obj = re.match("https?", "http")\nmatch_obj = re.match("https?", "https")\nif match_obj:\n result = match_obj.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# {m}\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0m\u6b21\n# match_obj = re.match("ht{2}ps?", "http")\n# match_obj = re.match("ht{2}ps?", "htttps")\nmatch_obj = re.match("ht{2}ps?", "https")\nif match_obj:\n result = match_obj.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n\n# {m,n}\uff1a\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0\u4ecem\u5230n\u6b21\nmatch_obj = re.match("ht{1,3}ps?", "htttps")\nif match_obj:\n result = match_obj.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n# \u6269\u5c55\uff1a{m,n}\u4e2d\uff0c\u5f53n\u4e0d\u6307\u5b9a\u65f6\uff0c\u8868\u793a\u4ecem\u5230\u65e0\u9650\u6b21\n<\/code><\/pre>\n9.\u5339\u914d\u5f00\u5934\u548c\u7ed3\u5c3e<\/h3>\n \u5339\u914d\u5f00\u5934\u548c\u7ed3\u5c3e<\/h4>\n\n\n\n\n\n\n\u4ee3\u7801<\/th>\n \u529f\u80fd<\/th>\n<\/tr>\n<\/thead>\n ^<\/code><\/td>\n \u5339\u914d\u5b57\u7b26\u4e32\u5f00\u5934<\/td>\n<\/tr>\n $<\/code><\/td>\n \u5339\u914d\u5b57\u7b26\u4e32\u7ed3\u5c3e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n import re\n\n# ^\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u5f00\u5934\nmatch_ojb = re.match("^\\d.","1abc")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n# $\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7ed3\u5c3e\nmatch_ojb = re.match(".\\d$","abc1")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n\n# \u5f00\u5934\u6570\u5b57\uff0c\u7ed3\u5c3e\u6570\u5b57\nmatch_ojb = re.match("^\\d.\\d$","2\u6211\u7684abc1")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n\u9664\u4e86\u6307\u5b9a\u5b57\u7b26\u4ee5\u5916\u90fd\u5339\u914d<\/h4>\n[^\u6307\u5b9a\u5b57\u7b26]<\/code>\uff1a\u8868\u793a\u9664\u4e86\u6307\u5b9a\u5b57\u7b26\u90fd\u5339\u914d<\/p>\n \u9700\u6c42\uff1a\u7b2c\u4e00\u4e2a\u5b57\u7b26\u9664\u4e86 aeiou \u7684\u5b57\u7b26\u90fd\u5339\u914d<\/p>\n import re\n\nmatch_ojb = re.match("[^aeiou]","hello")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n\u7ed3\u679c\uff1a<\/strong><\/p>\n h\n<\/code><\/pre>\n10.\u5339\u914d\u5206\u7ec4<\/h3>\n \u5339\u914d\u5206\u7ec4\u6b63\u5219\u8868\u8fbe\u5f0f<\/h4>\n\n\n\n\n\n\n\n\n\n\u4ee3\u7801<\/th>\n \u529f\u80fd<\/th>\n<\/tr>\n<\/thead>\n `<\/td>\n `<\/td>\n<\/tr>\n (ab)<\/code><\/td>\n \u5c06\u62ec\u53f7\u4e2d\u7684\u5b57\u7b26\u4f5c\u4e3a\u4e00\u4e2a\u5206\u7ec4<\/td>\n<\/tr>\n num<\/code><\/td>\n \u5f15\u7528\u5206\u7ec4num\u5339\u914d\u5230\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n (?P<name>)<\/code><\/td>\n \u5206\u7ec4\u8d77\u522b\u540d<\/td>\n<\/tr>\n (?P=name)<\/code><\/td>\n \u5f15\u7528\u522b\u540d\u4e3aname\u5206\u7ec4\u5339\u914d\u5230\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n import re\n\n# \u6c34\u679c\u5217\u8868\nfruit_list = ["apple", "banana", "cherry","orange", "strawberry", "peach"]\n\n# | \uff1a\u5339\u914d\u5de6\u53f3\u4efb\u610f\u4e00\u4e2a\u8868\u8fbe\u5f0f\nfor value in fruit_list:\n # \u6839\u636e\u6bcf\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5339\u914d\n match_ojb = re.match("banana|strawberry", value)\n if match_ojb:\n result = match_ojb.group()\n print("\u6211\u60f3\u5403\u7684\u6c34\u679c:",result)\n else:\n print(f"\u6211\u4e0d\u60f3\u5403\u7684\u6c34\u679c:{value}")\n<\/code><\/pre>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n \u9700\u6c42\uff1a\u5339\u914d\u51fa\uff0c163\u3001126\u3001qq\u7b49\u90ae\u7bb1<\/p>\n import re\n# \u5339\u914d\u51fa\uff0c163\u3001126\u3001qq\u7b49\u90ae\u7bb1\n# \\. \u8868\u793a\u5bf9\u6b63\u5219\u8868\u8fbe\u5f0f\u91cc\u9762\u7684\u70b9\u8fdb\u884c\u8f6c\u4e49,\u53d8\u6210\u4e86\u666e\u901a\u7684\u5b57\u7b26\u4e32\uff0c\u53ea\u80fd\u5339\u914d.\u5b57\u7b26\n# (163|126|qq) \u5c0f\u62ec\u53f7\u91cc\u9762\u8868\u793a\u5206\u7ec4\uff0c\u51fa\u73b0\u4e00\u4e2a\u5c0f\u62ec\u53f7\u5c31\u8868\u793a\u4e00\u4e2a\u5206\u7ec4\uff0c\u5206\u7ec4\u662f\u4ece1\u5f00\u59cb\u7684\n# \u5982\u679c\u51fa\u73b0\u591a\u4e2a\u5c0f\u62ec\u53f7\uff0c\u5206\u7ec4\u7684\u987a\u5e8f\u662f\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u6392\u5e8f\nmatch_ojb = re.match("[a-zA-Z0-9_]{4,20}@(163|126|qq)\\.com", "hello@126.com")\nif match_ojb:\n # \u83b7\u53d6\u6574\u4e2a\u5339\u914d\u6570\u636e\uff0c\u5982\u679c\u4f7f\u7528\u5206\u7ec4\u6570\u7684\u8bdd\uff0c\u9ed8\u8ba4\u662f0\n result = match_ojb.group(0)\n # \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5206\u7ec4\u5339\u914d\u7684\u6570\u636e\n # result = match_ojb.group(1)\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n \u9700\u6c42\uff1aqq:30128743\u53ea\u53d6\u5176\u4e2d\u4e00\u90e8\u5206<\/p>\n import re\n\nmatch_ojb = re.match("qq:([1-9]\\d{4,11})", "qq:30128743")\nif match_ojb:\n # \u83b7\u53d6\u6574\u4e2a\u5339\u914d\u6570\u636e\uff0c\u5982\u679c\u4f7f\u7528\u5206\u7ec4\u6570\u7684\u8bdd\uff0c\u9ed8\u8ba4\u662f0\n result = match_ojb.group()\n print(result)\n\n result = match_ojb.group(1)\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n\u793a\u4f8b\uff1anum<\/code><\/p>\n \u9700\u6c42\uff1a\u5339\u914d\u51fa<html>hhhh<\/html><\/code><\/p>\n import re\n\n# match_ojb = re.match("<[a-zA-Z1-6]+>.<\/[a-zA-Z1-6]+>", "<html>hhhh<\/div>")\n# \u60f3\u4f7f\u524d\u540e\u6807\u7b7e\u5185\u5bb9\u4e00\u81f4\uff0c\u53ef\u4ee5\u4f7f\u7528num\nmatch_ojb = re.match("<([a-zA-Z1-6]+)>.<\/\\1>", "<html>hhhh<\/html>")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n\u793a\u4f8b\uff1a<\/strong><\/p>\n \u4f7f\u7528(?P<name>)<\/code>\u7ed9\u5206\u7ec4\u8d77\u522b\u540d\u4e14\u4f7f\u7528(?P=name)<\/code>\u5f15\u7528\u522b\u540d\u4e3aname\u5206\u7ec4\u5339\u914d\u5230\u5b57\u7b26\u4e32<\/p>\n import re\n\nmatch_ojb = re.match("<(?P<name1>[a-zA-Z1-6]+)>.<\/(?P=name1)>", "<html>hhhh<\/html>")\nif match_ojb:\n result = match_ojb.group()\n print(result)\nelse:\n print("\u5339\u914d\u5931\u8d25...")\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u4e8c\u5341\u3001jQuery jQuery\u4e0b\u8f7d\u5730\u5740\uff1a\u70b9\u51fb\u6b64\u5904 \u4e0b\u8f7d\u6559\u7a0b\uff1ajQuery\u7684\u4e0b\u8f7d\u6559\u7a0b 1.jQuery\u7684\u4ecb\u7ecd […]<\/p>\n","protected":false},"author":1,"featured_media":70,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[12],"class_list":["post-176","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"_links":{"self":[{"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/posts\/176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/comments?post=176"}],"version-history":[{"count":3,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/posts\/176\/revisions"}],"predecessor-version":[{"id":237,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/posts\/176\/revisions\/237"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/media\/70"}],"wp:attachment":[{"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/media?parent=176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/categories?post=176"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.huihuia24.top\/index.php\/wp-json\/wp\/v2\/tags?post=176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}