{"id":1320,"date":"2024-04-13T11:20:44","date_gmt":"2024-04-13T03:20:44","guid":{"rendered":"http:\/\/www.porruhub.com\/?p=1320"},"modified":"2024-04-13T11:45:28","modified_gmt":"2024-04-13T03:45:28","slug":"1320","status":"publish","type":"post","link":"http:\/\/www.porruhub.com\/index.php\/2024\/04\/13\/1320\/","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li><strong>^<\/strong>&nbsp;\u4e3a\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li><strong>[0-9]+<\/strong>\u5339\u914d\u591a\u4e2a\u6570\u5b57\uff0c&nbsp;<strong>[0-9]<\/strong>&nbsp;\u5339\u914d\u5355\u4e2a\u6570\u5b57\uff0c<strong>+<\/strong>&nbsp;\u5339\u914d\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u3002<\/li>\n\n\n\n<li><strong>abc$<\/strong>\u5339\u914d\u5b57\u6bcd\u00a0<strong>abc<\/strong>\u00a0\u5e76\u4ee5\u00a0<strong>abc<\/strong>\u00a0\u7ed3\u5c3e\uff0c<strong>$<\/strong>\u00a0\u4e3a\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u7ed3\u675f\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>^[a-zA-Z0-9_-]{3,15}$<\/li>\n\n\n\n<li><code>^<\/code>\u00a0\u8868\u793a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u3002<\/li>\n\n\n\n<li><code>[a-zA-Z0-9_-]<\/code>\u00a0\u8868\u793a\u5b57\u7b26\u96c6\uff0c\u5305\u542b\u5c0f\u5199\u5b57\u6bcd\u3001\u5927\u5199\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\u548c\u8fde\u63a5\u5b57\u7b26\u00a0<strong>&#8211;<\/strong>\u3002<\/li>\n\n\n\n<li><code>{3,15}<\/code>\u00a0\u8868\u793a\u524d\u9762\u7684\u5b57\u7b26\u96c6\u6700\u5c11\u51fa\u73b0 3 \u6b21\uff0c\u6700\u591a\u51fa\u73b0 15 \u6b21\uff0c\u4ece\u800c\u9650\u5236\u4e86\u7528\u6237\u540d\u7684\u957f\u5ea6\u5728 3 \u5230 15 \u4e2a\u5b57\u7b26\u4e4b\u95f4\u3002<\/li>\n\n\n\n<li><code>$<\/code>\u00a0\u8868\u793a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u5c3e\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u6b63\u5219\u8868\u8fbe\u5f0f\u5143\u5b57\u7b26\u548c\u7279\u6027<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b57\u7b26\u5339\u914d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u666e\u901a\u5b57\u7b26\uff1a\u666e\u901a\u5b57\u7b26\u6309\u7167\u5b57\u9762\u610f\u4e49\u8fdb\u884c\u5339\u914d\uff0c\u4f8b\u5982\u5339\u914d\u5b57\u6bcd &#8220;a&#8221; \u5c06\u5339\u914d\u5230\u6587\u672c\u4e2d\u7684 &#8220;a&#8221; 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class=\"wp-block-heading\">\u8fb9\u754c\u5339\u914d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>^<\/code>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u3002<\/li>\n\n\n\n<li><code>$<\/code>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u5c3e\u3002<\/li>\n\n\n\n<li><code>\\b<\/code>\uff1a\u5339\u914d\u5355\u8bcd\u8fb9\u754c\u3002<\/li>\n\n\n\n<li><code>\\B<\/code>\uff1a\u5339\u914d\u975e\u5355\u8bcd\u8fb9\u754c\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5206\u7ec4\u548c\u6355\u83b7<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>( )<\/code>\uff1a\u7528\u4e8e\u5206\u7ec4\u548c\u6355\u83b7\u5b50\u8868\u8fbe\u5f0f\u3002<\/li>\n\n\n\n<li><code>(?: )<\/code>\uff1a\u7528\u4e8e\u5206\u7ec4\u4f46\u4e0d\u6355\u83b7\u5b50\u8868\u8fbe\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7279\u6b8a\u5b57\u7b26<\/h3>\n\n\n\n<ul 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)<\/td><td>\u6807\u8bb0\u4e00\u4e2a\u5b50\u8868\u8fbe\u5f0f\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u4f4d\u7f6e\u3002\u5b50\u8868\u8fbe\u5f0f\u53ef\u4ee5\u83b7\u53d6\u4f9b\u4ee5\u540e\u4f7f\u7528\u3002\u8981\u5339\u914d\u8fd9\u4e9b\u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528 \\( \u548c \\)\u3002<\/td><\/tr><tr><td>*<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u591a\u6b21\u3002\u8981\u5339\u914d * \u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528 \\*\u3002<\/td><\/tr><tr><td>+<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21\u3002\u8981\u5339\u914d + \u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528 \\+\u3002<\/td><\/tr><tr><td>.<\/td><td>\u5339\u914d\u9664\u6362\u884c\u7b26 \\n \u4e4b\u5916\u7684\u4efb\u4f55\u5355\u5b57\u7b26\u3002\u8981\u5339\u914d . \uff0c\u8bf7\u4f7f\u7528 \\. \u3002<\/td><\/tr><tr><td>[<\/td><td>\u6807\u8bb0\u4e00\u4e2a\u4e2d\u62ec\u53f7\u8868\u8fbe\u5f0f\u7684\u5f00\u59cb\u3002\u8981\u5339\u914d 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&#8220;(&#8220;\u3002<\/td><\/tr><tr><td>^<\/td><td>\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u4f4d\u7f6e\uff0c\u9664\u975e\u5728\u65b9\u62ec\u53f7\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\uff0c\u5f53\u8be5\u7b26\u53f7\u5728\u65b9\u62ec\u53f7\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\u65f6\uff0c\u8868\u793a\u4e0d\u63a5\u53d7\u8be5\u65b9\u62ec\u53f7\u8868\u8fbe\u5f0f\u4e2d\u7684\u5b57\u7b26\u96c6\u5408\u3002\u8981\u5339\u914d ^ \u5b57\u7b26\u672c\u8eab\uff0c\u8bf7\u4f7f\u7528 \\^\u3002<\/td><\/tr><tr><td>{<\/td><td>\u6807\u8bb0\u9650\u5b9a\u7b26\u8868\u8fbe\u5f0f\u7684\u5f00\u59cb\u3002\u8981\u5339\u914d {\uff0c\u8bf7\u4f7f\u7528 \\{\u3002<\/td><\/tr><tr><td>|<\/td><td>\u6307\u660e\u4e24\u9879\u4e4b\u95f4\u7684\u4e00\u4e2a\u9009\u62e9\u3002\u8981\u5339\u914d |\uff0c\u8bf7\u4f7f\u7528 \\|\u3002<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u9650\u5b9a\u7b26<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>\u5b57\u7b26<\/th><th>\u63cf\u8ff0<\/th><th><\/th><\/tr><tr><td>*<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982\uff0c<strong>zo*<\/strong>&nbsp;\u80fd\u5339\u914d&nbsp;<strong>&#8220;z&#8221;<\/strong>&nbsp;\u4ee5\u53ca&nbsp;<strong>&#8220;zoo&#8221;<\/strong>\u3002<strong>*<\/strong>&nbsp;\u7b49\u4ef7\u4e8e&nbsp;<strong>{0,}<\/strong>\u3002<\/td><td><\/td><\/tr><tr><td>+<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982\uff0c<strong>zo+<\/strong>&nbsp;\u80fd\u5339\u914d&nbsp;<strong>&#8220;zo&#8221;<\/strong>&nbsp;\u4ee5\u53ca &#8220;<strong>zoo&#8221;<\/strong>\uff0c\u4f46\u4e0d\u80fd\u5339\u914d&nbsp;<strong>&#8220;z&#8221;<\/strong>\u3002<strong>+<\/strong>&nbsp;\u7b49\u4ef7\u4e8e&nbsp;<strong>{1,}<\/strong>\u3002<\/td><td><\/td><\/tr><tr><td>?<\/td><td>\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u4e00\u6b21\u3002\u4f8b\u5982\uff0c<strong>do(es)?<\/strong>\u00a0\u53ef\u4ee5\u5339\u914d\u00a0<strong>&#8220;do&#8221;<\/strong>\u00a0\u3001\u00a0<strong>&#8220;does&#8221;<\/strong>\u3001\u00a0<strong>&#8220;doxy&#8221;<\/strong>\u00a0\u4e2d\u7684\u00a0<strong>&#8220;do&#8221;<\/strong>\u00a0\u548c\u00a0<strong>&#8220;does&#8221;<\/strong>\u3002<strong>?<\/strong>\u00a0\u7b49\u4ef7\u4e8e\u00a0<strong>{0,1}<\/strong>\u3002<\/td><td><\/td><\/tr><tr><td>{n}<\/td><td>n \u662f\u4e00\u4e2a\u975e\u8d1f\u6574\u6570\u3002\u5339\u914d\u786e\u5b9a\u7684&nbsp;<strong>n<\/strong>&nbsp;\u6b21\u3002\u4f8b\u5982\uff0c<strong>o{2}<\/strong>&nbsp;\u4e0d\u80fd\u5339\u914d&nbsp;<strong>&#8220;Bob&#8221;<\/strong>&nbsp;\u4e2d\u7684&nbsp;<strong>o<\/strong>\uff0c\u4f46\u662f\u80fd\u5339\u914d&nbsp;<strong>&#8220;food&#8221;<\/strong>&nbsp;\u4e2d\u7684\u4e24\u4e2a&nbsp;<strong>o<\/strong>\u3002<\/td><td><\/td><\/tr><tr><td>{n,}<\/td><td>n \u662f\u4e00\u4e2a\u975e\u8d1f\u6574\u6570\u3002\u81f3\u5c11\u5339\u914dn 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class=\"wp-block-heading\">\u5b9a\u4f4d\u7b26<\/h2>\n\n\n\n<p>\u5b9a\u4f4d\u7b26\u4f7f\u60a8\u80fd\u591f\u5c06\u6b63\u5219\u8868\u8fbe\u5f0f\u56fa\u5b9a\u5230\u884c\u9996\u6216\u884c\u5c3e\u3002\u5b83\u4eec\u8fd8\u4f7f\u60a8\u80fd\u591f\u521b\u5efa\u8fd9\u6837\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u8fd9\u4e9b\u6b63\u5219\u8868\u8fbe\u5f0f\u51fa\u73b0\u5728\u4e00\u4e2a\u5355\u8bcd\u5185\u3001\u5728\u4e00\u4e2a\u5355\u8bcd\u7684\u5f00\u5934\u6216\u8005\u4e00\u4e2a\u5355\u8bcd\u7684\u7ed3\u5c3e\u3002<\/p>\n\n\n\n<p>\u5b9a\u4f4d\u7b26\u7528\u6765\u63cf\u8ff0\u5b57\u7b26\u4e32\u6216\u5355\u8bcd\u7684\u8fb9\u754c\uff0c<strong>^<\/strong>&nbsp;\u548c&nbsp;<strong>$<\/strong>&nbsp;\u5206\u522b\u6307\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u4e0e\u7ed3\u675f\uff0c<strong>\\b<\/strong>&nbsp;\u63cf\u8ff0\u5355\u8bcd\u7684\u524d\u6216\u540e\u8fb9\u754c\uff0c<strong>\\B<\/strong>&nbsp;\u8868\u793a\u975e\u5355\u8bcd\u8fb9\u754c\u3002<\/p>\n\n\n\n<p>\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5b9a\u4f4d\u7b26\u6709\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>\u5b57\u7b26<\/th><th>\u63cf\u8ff0<\/th><th><\/th><\/tr><tr><td>^<\/td><td>\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u5f00\u59cb\u7684\u4f4d\u7f6e\u3002\u5982\u679c\u8bbe\u7f6e\u4e86 RegExp \u5bf9\u8c61\u7684 Multiline \u5c5e\u6027\uff0c^ \u8fd8\u4f1a\u4e0e \\n \u6216 \\r \u4e4b\u540e\u7684\u4f4d\u7f6e\u5339\u914d\u3002<\/td><td><\/td><\/tr><tr><td>$<\/td><td>\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7ed3\u5c3e\u7684\u4f4d\u7f6e\u3002\u5982\u679c\u8bbe\u7f6e\u4e86 RegExp \u5bf9\u8c61\u7684 Multiline \u5c5e\u6027\uff0c$ \u8fd8\u4f1a\u4e0e \\n \u6216 \\r \u4e4b\u524d\u7684\u4f4d\u7f6e\u5339\u914d\u3002<\/td><td><\/td><\/tr><tr><td>\\b<\/td><td>\u5339\u914d\u4e00\u4e2a\u5355\u8bcd\u8fb9\u754c\uff0c\u5373\u5b57\u4e0e\u7a7a\u683c\u95f4\u7684\u4f4d\u7f6e\u3002<\/td><td><\/td><\/tr><tr><td>\\B<\/td><td>\u975e\u5355\u8bcd\u8fb9\u754c\u5339\u914d\u3002<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" 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