{"id":77,"date":"2026-04-19T22:30:29","date_gmt":"2026-04-19T14:30:29","guid":{"rendered":"https:\/\/www.bojinhu.xyz\/?p=77"},"modified":"2026-04-22T12:18:31","modified_gmt":"2026-04-22T04:18:31","slug":"%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.bojinhu.xyz\/index.php\/2026\/04\/19\/%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0\/","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f\u5b66\u4e60\u7b14\u8bb0"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regular Expression\uff0c\u7b80\u79f0 regex \u6216 regexp\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u5b57\u7b26\u7ec4\u5408\u7684\u6a21\u5f0f\u3002\u5bf9\u4e8enlp\u65b9\u5411\uff0c\u8fd9\u662f\u8bed\u8a00\u5904\u7406\u7684\u57fa\u672c\u5de5\u5177\u4e4b\u4e00\uff0c\u65e0\u8bba\u662f\u9a8c\u8bc1\u8f93\u5165\u683c\u5f0f\u3001\u6279\u91cf\u641c\u7d22\u66ff\u6362\u3001\u8fd8\u662f\u4ece\u65e5\u5fd7\u91cc\u63d0\u53d6\u5173\u952e\u4fe1\u606f\uff0c\u6b63\u5219\u90fd\u80fd\u7528\u4e00\u884c\u6a21\u5f0f\u66ff\u4ee3\u5341\u51e0\u884c\u5b57\u7b26\u4e32\u5904\u7406\u4ee3\u7801\u6216\u8005\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5219\u7684\u6838\u5fc3\u601d\u60f3\u662f<strong>\u7528\u7279\u6b8a\u7b26\u53f7\u4ee3\u8868\u4e00\u7c7b\u5b57\u7b26<\/strong>\uff0c\u518d\u901a\u8fc7\u4f4d\u70b9\u3001\u91cd\u590d\u6b21\u6570\u548c\u5206\u7ec4\u903b\u8f91\u6765\u63cf\u8ff0\u76ee\u6807\u5b57\u7b26\u4e32\u7684\u7ed3\u6784\u3002\u5b83\u7684\u5b66\u4e60\u66f2\u7ebf\u6bd4\u8f83\u9661\u5ced\uff0c\u4f46\u4e00\u65e6\u638c\u63e1\uff0c\u6548\u7387\u63d0\u5347\u975e\u5e38\u660e\u663e\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6211\u7684\u5b66\u4e60\u8def\u7ebf\uff1a\u5148\u8bb0\u4f4f <code>* + ? ^ $<\/code> \u8fd9\u4e94\u4e2a\u6700\u5e38\u7528\u7684\u7b26\u53f7\uff0c\u518d\u9010\u6b65\u7406\u89e3 <code>()<\/code> \u6355\u83b7\u7ec4\u3001<code>[]<\/code> \u548c <code>{}<\/code> \u7684\u7ea6\u675f\u4f5c\u7528\uff0c\u6700\u540e\u653b\u514b\u56db\u4e2a\u65ad\u8a00\uff08<code>?=<\/code>, <code>?!<\/code>, <code>?&lt;=<\/code>, <code>?&lt;!<\/code>\uff09\u548c <code>(?:)<\/code> \u975e\u6355\u83b7\u7ec4\u3002\u5efa\u8bae\u914d\u5408\u5728\u7ebf\u6b63\u5219\u6d4b\u8bd5\u5de5\u5177\uff08\u5982 regex101.com\uff09\u8fb9\u5199\u8fb9\u8bd5\uff0c\u7406\u89e3\u5f97\u66f4\u5feb\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u3001\u6838\u5fc3\u7b26\u53f7\u901f\u8bb0\uff08<code>* + ? ^ $<\/code>\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5219\u8868\u8fbe\u5f0f\u6709\u4e94\u4e2a\u6700\u57fa\u7840\u7684\u7b26\u53f7\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7b26\u53f7<\/th><th>\u540d\u79f0<\/th><th>\u542b\u4e49<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead><tbody><tr><td><code>*<\/code><\/td><td>\u661f\u53f7<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f <strong>0 \u6b21\u6216\u591a\u6b21<\/strong><\/td><td><code>zo*<\/code> \u5339\u914d <code>z<\/code>\u3001<code>zo<\/code>\u3001<code>zoo<\/code><\/td><\/tr><tr><td><code>+<\/code><\/td><td>\u52a0\u53f7<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f <strong>1 \u6b21\u6216\u591a\u6b21<\/strong><\/td><td><code>zo+<\/code> \u5339\u914d <code>zo<\/code>\u3001<code>zoo<\/code>\uff0c\u4e0d\u5339\u914d <code>z<\/code><\/td><\/tr><tr><td><code>?<\/code><\/td><td>\u95ee\u53f7<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f <strong>0 \u6b21\u6216 1 \u6b21<\/strong><\/td><td><code>do(es)?<\/code> \u5339\u914d <code>do<\/code> \u6216 <code>does<\/code><\/td><\/tr><tr><td><code>^<\/code><\/td><td>\u8131\u5b57\u7b26<\/td><td>\u5339\u914d\u5b57\u7b26\u4e32\u7684 <strong>\u5f00\u59cb\u4f4d\u7f6e<\/strong><\/td><td><code>^Hello<\/code> \u5339\u914d\u4ee5 <code>Hello<\/code> \u5f00\u5934\u7684\u884c<\/td><\/tr><tr><td><code>$<\/code><\/td><td>\u7f8e\u5143\u7b26<\/td><td>\u5339\u914d\u5b57\u7b26\u4e32\u7684 <strong>\u7ed3\u675f\u4f4d\u7f6e<\/strong><\/td><td><code>world$<\/code> \u5339\u914d\u4ee5 <code>world<\/code> \u7ed3\u5c3e\u7684\u884c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u8bb0\u5fc6\u6280\u5de7\uff1a<code>*<\/code> \u53ef\u4ee5\u4e3a\u96f6\uff0c\u5c31\u50cf\u201c\u661f\u661f\u53ef\u6709\u53ef\u65e0\u201d\uff1b<code>+<\/code> \u81f3\u5c11\u6709\u4e00\u4e2a\uff0c\u5c31\u50cf\u201c\u52a0\u53f7\u589e\u52a0\u201d\uff1b<code>?<\/code> \u8868\u793a\u7591\u95ee\u201c\u6709\u6ca1\u6709\u90fd\u884c\u201d\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u3001\u91cf\u8bcd\u4e0e\u8303\u56f4\u7ea6\u675f\uff08<code>{}<\/code> \u548c <code>[]<\/code>\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u7cbe\u786e\u6b21\u6570\u7ea6\u675f <code>{}<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528\u82b1\u62ec\u53f7\u53ef\u4ee5\u6307\u5b9a\u91cd\u590d\u7684\u7cbe\u786e\u6b21\u6570\u6216\u8303\u56f4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8bed\u6cd5<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td><code>{n}<\/code><\/td><td>\u6070\u597d\u5339\u914d n \u6b21<\/td><\/tr><tr><td><code>{n,}<\/code><\/td><td>\u81f3\u5c11\u5339\u914d n \u6b21<\/td><\/tr><tr><td><code>{n,m}<\/code><\/td><td>\u5339\u914d n \u5230 m \u6b21\uff08n &lt;= m\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>o{2}<\/code> \u53ea\u80fd\u5339\u914d <code>food<\/code> \u4e2d\u7684\u4e24\u4e2a <code>o<\/code>\uff0c\u4e0d\u80fd\u5339\u914d <code>Bob<\/code> \u4e2d\u7684 <code>o<\/code>\u3002<\/li>\n\n\n\n<li><code>o{2,}<\/code> \u5339\u914d <code>foooood<\/code> \u4e2d\u7684\u6240\u6709 <code>o<\/code>\u3002<\/li>\n\n\n\n<li><code>o{1,3}<\/code> \u5339\u914d <code>fooooood<\/code> \u4e2d\u7684\u524d\u4e09\u4e2a <code>o<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8d2a\u5a6a\u4e0e\u975e\u8d2a\u5a6a<\/strong>\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c<code>*<\/code>\u3001<code>+<\/code>\u3001<code>?<\/code> \u548c <code>{}<\/code> \u90fd\u662f\u201c\u8d2a\u5a6a\u201d\u7684\u2014\u2014\u4f1a\u5c3d\u53ef\u80fd\u591a\u5730\u5339\u914d\u5b57\u7b26\u3002\u5728\u540e\u9762\u52a0\u4e00\u4e2a <code>?<\/code> \u53ef\u4ee5\u53d8\u6210\u201c\u975e\u8d2a\u5a6a\u201d\u6a21\u5f0f\uff0c\u5c3d\u53ef\u80fd\u5c11\u5730\u5339\u914d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5b57\u7b26\u4e32 <code>\"oooo\"<\/code>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>o+<\/code> \u5339\u914d\u6574\u4e2a <code>\"oooo\"<\/code><\/li>\n\n\n\n<li><code>o+?<\/code> \u53ea\u5339\u914d\u5355\u4e2a <code>\"o\"<\/code><\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u5b57\u7b26\u96c6\u5408 <code>[]<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b9\u62ec\u53f7\u5b9a\u4e49\u4e00\u4e2a\u5b57\u7b26\u96c6\u5408\uff0c\u5339\u914d\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8bed\u6cd5<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td><code>[abc]<\/code><\/td><td>\u5339\u914d <code>a<\/code>\u3001<code>b<\/code> \u6216 <code>c<\/code> \u4e2d\u7684\u4efb\u610f\u4e00\u4e2a<\/td><\/tr><tr><td><code>[^abc]<\/code><\/td><td>\u5339\u914d\u9664 <code>a<\/code>\u3001<code>b<\/code>\u3001<code>c<\/code> \u4e4b\u5916\u7684\u4efb\u610f\u5b57\u7b26\uff08\u6392\u9664\u578b\uff09<\/td><\/tr><tr><td><code>[a-z]<\/code><\/td><td>\u5339\u914d\u4efb\u610f\u5c0f\u5199\u5b57\u6bcd\uff08\u8303\u56f4\uff09<\/td><\/tr><tr><td><code>[A-Za-z0-9_]<\/code><\/td><td>\u5339\u914d\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff08\u7b49\u540c\u4e8e <code>\\w<\/code>\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6ce8\u610f\u4e8b\u9879<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 <code>[]<\/code> \u5185\u90e8\uff0c\u5927\u591a\u6570\u7279\u6b8a\u5b57\u7b26\uff08\u5982 <code>.<\/code>\u3001<code>*<\/code>\u3001<code>+<\/code>\uff09\u4f1a\u5931\u53bb\u7279\u6b8a\u542b\u4e49\uff0c\u53d8\u6210\u666e\u901a\u5b57\u7b26\u3002\u53ea\u6709 <code>\\<\/code>\u3001<code>^<\/code>\uff08\u5728\u5f00\u5934\u65f6\uff09\u3001<code>-<\/code>\uff08\u5728\u4e2d\u95f4\u65f6\uff09\u548c <code>]<\/code> \u9700\u8981\u8f6c\u4e49\u6216\u7279\u6b8a\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u8fde\u5b57\u7b26 <code>-<\/code> \u5982\u679c\u51fa\u73b0\u5728\u9996\u4f4d\u6216\u672b\u5c3e\uff0c\u5c31\u8868\u793a\u666e\u901a\u5b57\u7b26\u800c\u975e\u8303\u56f4\u3002\u4f8b\u5982 <code>[-az]<\/code> \u5339\u914d <code>-<\/code>\u3001<code>a<\/code> \u6216 <code>z<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u56db\u3001\u5206\u7ec4\u4e0e\u6355\u83b7<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u6355\u83b7\u7ec4 <code>(pattern)<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528\u5706\u62ec\u53f7\u5305\u88f9\u7684\u8868\u8fbe\u5f0f\u4f1a\u88ab\u89c6\u4e3a\u4e00\u4e2a\u5b50\u8868\u8fbe\u5f0f\uff08\u5b50\u6a21\u5f0f\uff09\uff0c\u5339\u914d\u5230\u7684\u6587\u672c\u4f1a\u88ab\u5b58\u50a8\u8d77\u6765\uff0c\u4f9b\u540e\u7eed\u5f15\u7528\uff08\u53cd\u5411\u5f15\u7528\uff09\u6216\u63d0\u53d6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(\\d{4})-(\\d{2})-(\\d{2})<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5339\u914d\u65e5\u671f <code>2025-04-16<\/code>\uff0c\u4e09\u4e2a\u6355\u83b7\u7ec4\u5206\u522b\u5bf9\u5e94\u5e74\u3001\u6708\u3001\u65e5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53cd\u5411\u5f15\u7528\u53ef\u4ee5\u7528 <code>\\1<\/code>\u3001<code>\\2<\/code> \u7b49\u6765\u5f15\u7528\u524d\u9762\u7684\u6355\u83b7\u7ec4\u5185\u5bb9\u3002\u4f8b\u5982\u5339\u914d\u91cd\u590d\u5355\u8bcd\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\\b(\\w+)\\s+\\1\\b<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u5339\u914d <code>hello hello<\/code>\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u975e\u6355\u83b7\u7ec4 <code>(?:pattern)<\/code><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u65f6\u5019\u6211\u4eec\u53ea\u60f3\u7528\u62ec\u53f7\u8fdb\u884c\u5206\u7ec4\uff08\u4f8b\u5982\u914d\u5408 <code>|<\/code> \u505a\u591a\u9009\uff09\uff0c\u4f46\u5e76\u4e0d\u9700\u8981\u6355\u83b7\u5339\u914d\u7684\u6587\u672c\u3002\u8fd9\u65f6\u53ef\u4ee5\u7528 <code>(?:pattern)<\/code>\uff0c\u5b83\u4e0d\u4f1a\u5360\u7528\u6355\u83b7\u7ec4\u7684\u7f16\u53f7\uff0c\u6027\u80fd\u66f4\u597d\uff0c\u8bed\u4e49\u4e5f\u66f4\u6e05\u6670\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>industr(?:y|ies)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u8868\u8fbe\u5f0f\u6bd4 <code>industry|industries<\/code> \u66f4\u7b80\u6d01\uff0c\u800c\u4e14\u4e0d\u4f1a\u4ea7\u751f\u591a\u4f59\u7684\u6355\u83b7\u7ec4\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6211\u901a\u5e38\u5728\u4e24\u79cd\u60c5\u51b5\u4e0b\u4f7f\u7528\u975e\u6355\u83b7\u7ec4\uff1a\u4e00\u662f\u53ea\u9700\u8981\u5206\u7ec4\u4f5c\u7528\uff0c\u4e8c\u662f\u5e0c\u671b\u63d0\u9ad8\u6b63\u5219\u6267\u884c\u6548\u7387\uff08\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5185\u5b58\u5b58\u50a8\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e94\u3001\u56db\u4e2a\u65ad\u8a00\uff08\u73af\u89c6\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u65ad\u8a00\uff08Assertion\uff09\u4e0d\u5339\u914d\u5177\u4f53\u7684\u5b57\u7b26\uff0c\u800c\u662f\u5339\u914d<strong>\u4f4d\u7f6e<\/strong>\uff08\u4f8b\u5982\u5b57\u7b26\u4e4b\u524d\u6216\u4e4b\u540e\u5fc5\u987b\u6ee1\u8db3\u67d0\u79cd\u6761\u4ef6\uff09\u3002\u5b83\u4eec\u4e0d\u6d88\u8017\u5b57\u7b26\uff0c\u6240\u4ee5\u4e5f\u53eb\u201c\u96f6\u5bbd\u65ad\u8a00\u201d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65ad\u8a00<\/th><th>\u540d\u79f0<\/th><th>\u542b\u4e49<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead><tbody><tr><td><code>(?=pattern)<\/code><\/td><td>\u6b63\u5411\u5148\u884c\u65ad\u8a00<\/td><td>\u5339\u914d\u540e\u9762\u662f <code>pattern<\/code> \u7684\u4f4d\u7f6e<\/td><td><code>Windows(?=95|98)<\/code> \u80fd\u5339\u914d <code>Windows98<\/code> \u4e2d\u7684 <code>Windows<\/code>\uff0c\u4f46\u4e0d\u5339\u914d <code>Windows3.1<\/code><\/td><\/tr><tr><td><code>(?!pattern)<\/code><\/td><td>\u8d1f\u5411\u5148\u884c\u65ad\u8a00<\/td><td>\u5339\u914d\u540e\u9762<strong>\u4e0d\u662f<\/strong> <code>pattern<\/code> \u7684\u4f4d\u7f6e<\/td><td><code>Windows(?!95|98)<\/code> \u80fd\u5339\u914d <code>Windows3.1<\/code> \u4e2d\u7684 <code>Windows<\/code>\uff0c\u4f46\u4e0d\u5339\u914d <code>Windows98<\/code><\/td><\/tr><tr><td><code>(?&lt;=pattern)<\/code><\/td><td>\u6b63\u5411\u540e\u884c\u65ad\u8a00<\/td><td>\u5339\u914d\u524d\u9762\u662f <code>pattern<\/code> \u7684\u4f4d\u7f6e<\/td><td><code>(?&lt;=95|98)Windows<\/code> \u80fd\u5339\u914d <code>98Windows<\/code> \u4e2d\u7684 <code>Windows<\/code><\/td><\/tr><tr><td><code>(?&lt;!pattern)<\/code><\/td><td>\u8d1f\u5411\u540e\u884c\u65ad\u8a00<\/td><td>\u5339\u914d\u524d\u9762<strong>\u4e0d\u662f<\/strong> <code>pattern<\/code> \u7684\u4f4d\u7f6e<\/td><td><code>(?&lt;!95|98)Windows<\/code> \u80fd\u5339\u914d <code>3.1Windows<\/code> \u4e2d\u7684 <code>Windows<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5339\u914d\u4e0d\u5305\u542b\u67d0\u4e9b\u5355\u8bcd\u7684\u5b57\u7b26\u4e32\uff1a<code>^(?!.*badword).*$<\/code><\/li>\n\n\n\n<li>\u63d0\u53d6\u6240\u6709 <code>$<\/code> \u7b26\u53f7\u540e\u7684\u6570\u5b57\uff1a<code>(?&lt;=\\$)\\d+<\/code><\/li>\n\n\n\n<li>\u5339\u914d <code>src=<\/code> \u540e\u9762\u7684 URL \u4f46\u4e0d\u5305\u542b\u5f15\u53f7\uff1a<code>(?&lt;=src=[\"'])[^\"']+<\/code><\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u516d\u3001\u5e38\u7528\u5143\u5b57\u7b26\u901f\u67e5<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b57\u7b26<\/th><th>\u63cf\u8ff0<\/th><\/tr><\/thead><tbody><tr><td><code>.<\/code><\/td><td>\u5339\u914d\u9664\u6362\u884c\u7b26 <code>\\r<\/code>\u3001<code>\\n<\/code> \u4e4b\u5916\u7684\u4efb\u610f\u5355\u4e2a\u5b57\u7b26<\/td><\/tr><tr><td><code>\\d<\/code><\/td><td>\u5339\u914d\u4efb\u610f\u6570\u5b57\uff0c\u7b49\u4ef7\u4e8e <code>[0-9]<\/code><\/td><\/tr><tr><td><code>\\D<\/code><\/td><td>\u5339\u914d\u4efb\u610f\u975e\u6570\u5b57\uff0c\u7b49\u4ef7\u4e8e <code>[^0-9]<\/code><\/td><\/tr><tr><td><code>\\w<\/code><\/td><td>\u5339\u914d\u5355\u8bcd\u5b57\u7b26\uff08\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff09\uff0c\u7b49\u4ef7\u4e8e <code>[A-Za-z0-9_]<\/code><\/td><\/tr><tr><td><code>\\W<\/code><\/td><td>\u5339\u914d\u975e\u5355\u8bcd\u5b57\u7b26<\/td><\/tr><tr><td><code>\\s<\/code><\/td><td>\u5339\u914d\u7a7a\u767d\u5b57\u7b26\uff08\u7a7a\u683c\u3001\u5236\u8868\u7b26\u3001\u6362\u9875\u7b26\u7b49\uff09\uff0c\u7b49\u4ef7\u4e8e <code>[ \\f\\n\\r\\t\\v]<\/code><\/td><\/tr><tr><td><code>\\S<\/code><\/td><td>\u5339\u914d\u975e\u7a7a\u767d\u5b57\u7b26<\/td><\/tr><tr><td><code>\\b<\/code><\/td><td>\u5339\u914d\u5355\u8bcd\u8fb9\u754c\uff08\u5355\u8bcd\u5f00\u59cb\u6216\u7ed3\u675f\u7684\u4f4d\u7f6e\uff09<\/td><\/tr><tr><td><code>\\B<\/code><\/td><td>\u5339\u914d\u975e\u5355\u8bcd\u8fb9\u754c<\/td><\/tr><tr><td><code>\\n<\/code><\/td><td>\u6362\u884c\u7b26<\/td><\/tr><tr><td><code>\\r<\/code><\/td><td>\u56de\u8f66\u7b26<\/td><\/tr><tr><td><code>\\t<\/code><\/td><td>\u5236\u8868\u7b26<\/td><\/tr><tr><td><code>\\f<\/code><\/td><td>\u6362\u9875\u7b26<\/td><\/tr><tr><td><code>\\v<\/code><\/td><td>\u5782\u76f4\u5236\u8868\u7b26<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6ce8\u610f<\/strong>\uff1a\u5728 Unicode \u73af\u5883\u4e0b\uff0c<code>\\d<\/code>\u3001<code>\\w<\/code>\u3001<code>\\s<\/code> \u7b49\u53ef\u80fd\u5339\u914d\u5168\u89d2\u5b57\u7b26\uff0c\u5982\u679c\u9700\u8981\u4e25\u683c ASCII \u8303\u56f4\uff0c\u4f7f\u7528 <code>[0-9]<\/code>\u3001<code>[A-Za-z0-9_]<\/code> \u7b49\u81ea\u5b9a\u4e49\u5b57\u7b26\u7c7b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e03\u3001\u8fd0\u7b97\u7b26\u4f18\u5148\u7ea7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684\u5143\u5b57\u7b26\u548c\u7ed3\u6784\u4e5f\u6709\u4f18\u5148\u7ea7\uff0c\u4ece\u9ad8\u5230\u4f4e\u6392\u5217\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4f18\u5148\u7ea7<\/th><th>\u7b26\u53f7<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u6700\u9ad8<\/td><td><code>\\<\/code><\/td><td>\u8f6c\u4e49\u7b26<\/td><\/tr><tr><td>\u9ad8<\/td><td><code>()<\/code>\u3001<code>(?:)<\/code>\u3001<code>(?=)<\/code>\u3001<code>[]<\/code><\/td><td>\u5206\u7ec4\u6216\u5b57\u7b26\u7c7b<\/td><\/tr><tr><td>\u4e2d<\/td><td><code>*<\/code>\u3001<code>+<\/code>\u3001<code>?<\/code>\u3001<code>{n}<\/code>\u3001<code>{n,}<\/code>\u3001<code>{n,m}<\/code><\/td><td>\u91cf\u8bcd<\/td><\/tr><tr><td>\u4f4e<\/td><td><code>^<\/code>\u3001<code>$<\/code>\u3001<code>\\b<\/code>\u3001<code>\\B<\/code><\/td><td>\u951a\u70b9\/\u4f4d\u7f6e<\/td><\/tr><tr><td>\u6b21\u6700\u4f4e<\/td><td>\u4e32\u63a5<\/td><td>\u76f8\u90bb\u5b57\u7b26\u8fde\u63a5\uff08\u5982 <code>ab<\/code>\uff09<\/td><\/tr><tr><td>\u6700\u4f4e<\/td><td><code>|<\/code><\/td><td>\u4ea4\u66ff\uff08\u6216\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f8b\u5b50<\/strong>\uff1a<code>^ab|cd$<\/code> \u7684\u5b9e\u9645\u542b\u4e49\u662f <code>(^ab)|(cd$)<\/code>\uff0c\u800c\u4e0d\u662f <code>^(ab|cd)$<\/code>\u3002\u5982\u679c\u9700\u8981\u5339\u914d\u6574\u884c\u662f <code>ab<\/code> \u6216 <code>cd<\/code>\uff0c\u5e94\u8be5\u4f7f\u7528 <code>^(ab|cd)$<\/code>\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u516b\u3001\u5b9e\u6218\u6848\u4f8b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u9a8c\u8bc1\u90ae\u7bb1\u5730\u5740\uff08\u57fa\u7840\u7248\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>^&#91;a-zA-Z0-9._%+-]+@&#91;a-zA-Z0-9.-]+\\.&#91;a-zA-Z]{2,}$<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u63d0\u53d6 HTML \u6807\u7b7e\u5185\u7684\u6587\u672c\uff08\u975e\u8d2a\u5a6a\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;title&gt;(.*?)&lt;\/title&gt;<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u5339\u914d IPv4 \u5730\u5740<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>\\b(?:25&#91;0-5]|2&#91;0-4]&#91;0-9]|&#91;01]?&#91;0-9]&#91;0-9]?)\\.(?:25&#91;0-5]|2&#91;0-4]&#91;0-9]|&#91;01]?&#91;0-9]&#91;0-9]?)\\.(?:25&#91;0-5]|2&#91;0-4]&#91;0-9]|&#91;01]?&#91;0-9]&#91;0-9]?)\\.(?:25&#91;0-5]|2&#91;0-4]&#91;0-9]|&#91;01]?&#91;0-9]&#91;0-9]?)\\b<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u5339\u914d 24 \u5c0f\u65f6\u5236\u65f6\u95f4\uff08HH:MM\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>^(?:&#91;01]\\d|2&#91;0-3]):&#91;0-5]\\d$<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">5. \u4ece\u65e5\u5fd7\u4e2d\u63d0\u53d6\u6240\u6709\u9519\u8bef\u4ee3\u7801\uff08\u5047\u8bbe\u683c\u5f0f\u4e3a <code>ERROR [code:1234]<\/code>\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>(?&lt;=ERROR \\&#91;code:)\\d+(?=\\])<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e5d\u3001\u5e38\u89c1\u9677\u9631\u4e0e\u5efa\u8bae<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f6c\u4e49\u5b57\u7b26<\/strong>\uff1a\u5728\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\uff0c\u6709 12 \u4e2a\u5b57\u7b26\u9700\u8981\u8f6c\u4e49\u624d\u80fd\u8868\u793a\u5176\u5b57\u9762\u610f\u4e49\uff1a<code>^ $ ( ) * + ? . [ { \\ |<\/code>\u3002\u4f8b\u5982\u8981\u5339\u914d <code>(a+b)<\/code>\uff0c\u9700\u8981\u5199\u6210 <code>\\(a\\+b\\)<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u6362\u884c\u7b26<\/strong>\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b <code>.<\/code> \u4e0d\u5339\u914d\u6362\u884c\u7b26\u3002\u5982\u679c\u9700\u8981\u8de8\u884c\u5339\u914d\uff0c\u4f7f\u7528 <code>[\\s\\S]<\/code> \u6216\u5f00\u542f <code>s<\/code> \u6a21\u5f0f\uff08\u5355\u884c\u6a21\u5f0f\uff09\u3002<\/li>\n\n\n\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u590d\u6742\u7684\u6b63\u5219\u5c24\u5176\u662f\u5d4c\u5957\u91cf\u8bcd\u53ef\u80fd\u5bfc\u81f4\u201c\u707e\u96be\u6027\u56de\u6eaf\u201d\u3002\u5c3d\u91cf\u4f7f\u7528\u975e\u6355\u83b7\u7ec4\u3001\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5d4c\u5957\uff0c\u5fc5\u8981\u65f6\u4f7f\u7528\u539f\u5b50\u7ec4 <code>(?>pattern)<\/code>\uff08\u90e8\u5206\u5f15\u64ce\u652f\u6301\uff09\u3002<\/li>\n\n\n\n<li><strong>\u6d4b\u8bd5\u5de5\u5177<\/strong>\uff1a\u63a8\u8350 regex101.com\uff08\u652f\u6301\u591a\u79cd\u8bed\u8a00\u98ce\u683c\uff0c\u63d0\u4f9b\u8be6\u7ec6\u89e3\u91ca\uff09\u6216 Regexr\u3002\u6211\u4e60\u60ef\u5728\u5199\u4efb\u4f55\u7a0d\u590d\u6742\u7684\u6b63\u5219\u524d\uff0c\u5148\u5728\u6d4b\u8bd5\u5de5\u5177\u91cc\u9a8c\u8bc1\u8fb9\u754c\u60c5\u51b5\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u5341\u3001\u901f\u67e5\u8868\uff08\u6b63\u5219\u5e38\u7528\u8bed\u6cd5\uff09<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9700\u6c42<\/th><th>\u8868\u8fbe\u5f0f<\/th><\/tr><\/thead><tbody><tr><td>\u6570\u5b57<\/td><td><code>\\d<\/code> \u6216 <code>[0-9]<\/code><\/td><\/tr><tr><td>\u975e\u6570\u5b57<\/td><td><code>\\D<\/code><\/td><\/tr><tr><td>\u5b57\u6bcd\u6216\u6570\u5b57\u6216\u4e0b\u5212\u7ebf<\/td><td><code>\\w<\/code><\/td><\/tr><tr><td>\u7a7a\u767d\u5b57\u7b26<\/td><td><code>\\s<\/code><\/td><\/tr><tr><td>\u5355\u8bcd\u8fb9\u754c<\/td><td><code>\\b<\/code><\/td><\/tr><tr><td>\u5f00\u59cb\u4f4d\u7f6e<\/td><td><code>^<\/code><\/td><\/tr><tr><td>\u7ed3\u675f\u4f4d\u7f6e<\/td><td><code>$<\/code><\/td><\/tr><tr><td>0 \u6216\u591a\u6b21<\/td><td><code>*<\/code><\/td><\/tr><tr><td>1 \u6216\u591a\u6b21<\/td><td><code>+<\/code><\/td><\/tr><tr><td>0 \u6216 1 \u6b21<\/td><td><code>?<\/code><\/td><\/tr><tr><td>\u7cbe\u786e n \u6b21<\/td><td><code>{n}<\/code><\/td><\/tr><tr><td>n \u5230 m \u6b21<\/td><td><code>{n,m}<\/code><\/td><\/tr><tr><td>\u6355\u83b7\u7ec4<\/td><td><code>(...)<\/code><\/td><\/tr><tr><td>\u975e\u6355\u83b7\u7ec4<\/td><td><code>(?:...)<\/code><\/td><\/tr><tr><td>\u6b63\u5411\u5148\u884c\u65ad\u8a00<\/td><td><code>(?=...)<\/code><\/td><\/tr><tr><td>\u8d1f\u5411\u5148\u884c\u65ad\u8a00<\/td><td><code>(?!...)<\/code><\/td><\/tr><tr><td>\u6b63\u5411\u540e\u884c\u65ad\u8a00<\/td><td><code>(?&lt;=...)<\/code><\/td><\/tr><tr><td>\u8d1f\u5411\u540e\u884c\u65ad\u8a00<\/td><td><code>(?&lt;!...)<\/code><\/td><\/tr><tr><td>\u903b\u8f91\u6216<\/td><td><code>|<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4ec0\u4e48\uff1f \u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regular Expression\uff0c\u7b80\u79f0 regex \u6216 regexp\uff09 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":78,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[26],"class_list":["post-77","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mtsb","tag-regex"],"_links":{"self":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts\/77","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=77"}],"version-history":[{"count":1,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts\/77\/revisions"}],"predecessor-version":[{"id":79,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/posts\/77\/revisions\/79"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/media\/78"}],"wp:attachment":[{"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bojinhu.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}