{"id":89,"date":"2023-06-05T13:09:43","date_gmt":"2023-06-05T05:09:43","guid":{"rendered":"http:\/\/pro369.com\/php\/?p=89"},"modified":"2019-04-16T16:30:22","modified_gmt":"2019-04-16T16:30:22","slug":"%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f%e7%9a%84%e7%a0%94%e7%a9%b6","status":"publish","type":"post","link":"https:\/\/por.tw\/php\/%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f%e7%9a%84%e7%a0%94%e7%a9%b6\/","title":{"rendered":"\u6b63\u5247\u8868\u9054\u5f0f\u7684\u7814\u7a76"},"content":{"rendered":"

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1.\u4ec0\u9ebc\u662f\u6b63\u5247\u8868\u9054\u5f0f<\/strong><\/font><\/p>\n

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2.\u4e0d\u540c\u7684\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce<\/strong><\/font><\/p>\n

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3.\u6587\u5b57\u5143\u865f<\/strong><\/font><\/p>\n

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    \u7279\u6b8a\u5b57\u5143<\/p>\n

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[ ] ^ $ . | ? * + ( )<\/p>\n

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    \u4e0d\u53ef\u986f\u793a\u5b57\u5143<\/p>\n

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<<\t>>\u4ee3\u8868Tab(0×09)<\/p>\n

<<
\n>>\u4ee3\u8868\u63db\u884c\u7b26(0x0D)<\/p>\n

<<
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    \u6b63\u5247\u5c0e\u5411\u7684\u5f15\u64ce\u7e3d\u662f\u8fd4\u56de\u6700\u5de6\u908a\u7684\u7b26\u5408<\/p>\n

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\u7576\u628a<<cat>>\u61c9\u7528\u5230\u300cHe captured a catfish for his cat\u300d\uff0c\u5f15\u64ce\u5148\u6bd4\u8f03<<c>>\u548c\u300cH\u300d\uff0c\u7d50\u679c\u5931\u6557\u4e86\u3002\u65bc\u662f\u5f15\u64ce\u518d\u6bd4\u8f03<<c>>\u548c\u300ce\u300d\uff0c\u4e5f\u5931\u6557\u4e86\u3002\u76f4\u5230\u7b2c\u56db\u500b\u5b57\u5143\uff0c<<c>>\u7b26\u5408\u4e86\u300cc\u300d\u3002<<a>>\u7b26\u5408\u4e86\u7b2c\u4e94\u500b\u5b57\u5143\u3002\u5230\u7b2c\u516d\u500b\u5b57\u5143<<t>>\u6c92\u80fd\u7b26\u5408\u300cp\u300d\uff0c\u4e5f\u5931\u6557\u4e86\u3002\u5f15\u64ce\u518d\u7e7c\u7e8c\u5f9e\u7b2c\u4e94\u500b\u5b57\u5143\u91cd\u65b0\u6aa2\u67e5\u7b26\u5408\u6027\u3002\u76f4\u5230\u7b2c\u5341\u4e94\u500b\u5b57\u5143\u958b\u59cb\uff0c<<cat>>\u7b26\u5408\u4e0a\u4e86\u300ccatfish\u300d\u4e2d\u7684\u300ccat\u300d\uff0c\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u6025\u5207\u7684\u8fd4\u56de\u7b2c\u4e00\u500b\u7b26\u5408\u7684\u7d50\u679c\uff0c\u800c\u4e0d\u6703\u518d\u7e7c\u7e8c\u5c0b\u627e\u662f\u5426\u6709\u5176\u4ed6\u66f4\u597d\u7684\u7b26\u5408\u3002<\/p>\n

5.\u5b57\u96c6<\/strong><\/font><\/p>\n

\u5b57\u96c6\u662f\u7531\u4e00\u5c0d\u65b9\u62ec\u865f\u300c[]\u300d\u62ec\u8d77\u4f86\u7684\u5b57\u96c6\u5408\u3002\u4f7f\u7528\u5b57\u96c6\uff0c\u4f60\u53ef\u4ee5\u544a\u8a34\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u50c5\u50c5\u7b26\u5408\u591a\u500b\u5b57\u5143\u4e2d\u7684\u4e00\u500b\u3002\u5982\u679c\u4f60\u60f3\u7b26\u5408\u4e00\u500b\u300ca\u300d\u6216\u4e00\u500b\u300ce\u300d\uff0c\u4f7f\u7528<<[ae]>>\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528<<gr[ae]y>>\u7b26\u5408gray\u6216grey\u3002\u9019\u5728\u4f60\u4e0d\u78ba\u5b9a\u4f60\u8981\u641c\u5c0b\u7684\u5b57\u5143\u662f\u63a1\u7528\u7f8e\u570b\u82f1\u8a9e\u9084\u662f\u82f1\u570b\u82f1\u8a9e\u6642\u7279\u5225\u6709\u7528\u3002\u76f8\u53cd\uff0c<<gr[ae]y>>\u5c07\u4e0d\u6703\u7b26\u5408graay\u6216graey\u3002\u5b57\u96c6\u4e2d\u7684\u5b57\u5143\u9806\u5e8f\u4e26\u6c92\u6709\u4ec0\u9ebc\u95dc\u4fc2\uff0c\u7d50\u679c\u90fd\u662f\u76f8\u540c\u7684\u3002<\/p>\n

\u4f60\u53ef\u4ee5\u4f7f\u7528\u9023\u5b57\u5143\u300c-\u300d\u5b9a\u7fa9\u4e00\u500b\u5b57\u5143\u7bc4\u570d\u4f5c\u70ba\u5b57\u96c6\u3002<<[0-9]>>\u7b26\u54080\u52309\u4e4b\u9593\u7684\u55ae\u500b\u6578\u5b57\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0d\u6b62\u4e00\u500b\u7bc4\u570d\u3002<<[0-9a-fA-F] >>\u7b26\u5408\u55ae\u500b\u7684\u5341\u516d\u9032\u4f4d\u6578\u5b57\uff0c\u4e26\u4e14\u5927\u5c0f\u5beb\u4e0d\u654f\u611f\u3002\u4f60\u4e5f\u53ef\u4ee5\u7d50\u5408\u7bc4\u570d\u5b9a\u7fa9\u8207\u55ae\u500b\u5b57\u5143\u5b9a\u7fa9\u3002<<[0-9a-fxA-FX]>>\u7b26\u5408\u4e00\u500b\u5341\u516d\u9032\u4f4d\u6578\u5b57\u6216\u5b57\u6bcdX\u3002\u518d\u6b21\u5f37\u8abf\u4e00\u4e0b\uff0c\u5b57\u5143\u548c\u7bc4\u570d\u5b9a\u7fa9\u7684\u5148\u5f8c\u9806\u5e8f\u5c0d\u7d50\u679c\u6c92\u6709\u5f71\u97ff\u3002<\/p>\n

    \u5b57\u96c6\u7684\u4e00\u4e9b\u61c9\u7528<\/p>\n

\u5c0b\u627e\u4e00\u500b\u53ef\u80fd\u6709\u62fc\u5b57\u932f\u8aa4\u7684\u55ae\u8a5e\uff0c\u6bd4\u5982<<sep[ae]r[ae]te>> \u6216 <<li[cs]en[cs]e>>\u3002<\/p>\n

\u5c0b\u627e\u7a0b\u5f0f\u8a9e\u7cfb\u7684\u6a19\u8b58\u7b26\uff0c<<A-Za-z_][A-Za-z_0-9]*>>\u3002(*\u8868\u793a\u91cd\u89070\u6216\u591a\u6b21)<\/p>\n

\u5c0b\u627eC\u98a8\u683c\u7684\u5341\u516d\u9032\u4f4d\u6578<<0[xX][A-Fa-f0-9]+>>\u3002(+\u8868\u793a\u91cd\u8907\u4e00\u6b21\u6216\u591a\u6b21)<\/p>\n

    \u53d6\u53cd\u5b57\u96c6<\/p>\n

\u5728\u5de6\u65b9\u62ec\u865f\u300c[\u300d\u5f8c\u9762\u7dca\u8ddf\u4e00\u500b\u5c16\u62ec\u865f\u300c^\u300d\uff0c\u5c07\u6703\u5c0d\u5b57\u96c6\u53d6\u53cd\u3002\u7d50\u679c\u662f\u5b57\u96c6\u5c07\u7b26\u5408\u4efb\u4f55\u4e0d\u5728\u65b9\u62ec\u865f\u4e2d\u7684\u5b57\u5143\u3002\u4e0d\u50cf\u300c.\u300d\uff0c\u53d6\u53cd\u5b57\u96c6\u662f\u53ef\u4ee5\u7b26\u5408\u63db\u884c\u63db\u884c\u7b26\u7684\u3002<\/p>\n

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\u5982\u679c\u4f60\u53ea\u60f3\u7b26\u5408\u4e00\u500bq\uff0c\u689d\u4ef6\u662fq\u5f8c\u9762\u6709\u4e00\u500b\u4e0d\u662fu\u7684\u5b57\u5143\uff0c\u6211\u5011\u53ef\u4ee5\u7528\u5f8c\u9762\u5c07\u8b1b\u5230\u7684\u5411\u524d\u6aa2\u8996\u4f86\u89e3\u6c7a\u3002<\/p>\n

    \u5b57\u96c6\u4e2d\u7684\u5143\u5b57\u5143<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u5b57\u96c6\u4e2d\u53ea\u67094\u500b \u5b57\u5143\u5177\u6709\u7279\u6b8a\u542b\u7fa9\u3002\u5b83\u5011\u662f\uff1a\u300c] ^ -\u300d\u3002\u300c]\u300d\u4ee3\u8868\u5b57\u96c6\u5b9a\u7fa9\u7684\u7d50\u675f\uff1b\u300c\u300d\u4ee3\u8868\u8f49\u7fa9\uff1b\u300c^\u300d\u4ee3\u8868\u53d6\u53cd\uff1b\u300c-\u300d\u4ee3\u8868\u7bc4\u570d\u5b9a\u7fa9\u3002\u5176\u4ed6\u5e38\u898b\u7684\u5143\u5b57\u5143\u5728\u5b57\u96c6\u5b9a\u7fa9\u5167\u5b9a\u90fd\u662f\u6a19\u6e96\u5b57\u5143\uff0c\u4e0d\u9700\u8981\u8f49\u7fa9\u3002\u4f8b\u5982\uff0c\u8981\u641c\u5c0b\u661f\u865f*\u6216\u52a0\u865f+\uff0c\u4f60\u53ef\u4ee5\u7528<<[+*]>>\u3002\u7576\u7136\uff0c\u5982\u679c\u4f60\u5c0d\u90a3\u4e9b\u901a\u5e38\u7684\u5143\u5b57\u5143\u9032\u884c\u8f49\u7fa9\uff0c\u4f60\u7684\u6b63\u5247\u8868\u9054\u5f0f\u4e00\u6a23\u6703\u5de5\u4f5c\u5f97\u5f88\u597d\uff0c\u4f46\u662f\u9019\u6703\u964d\u4f4e\u53ef\u8b80\u6027\u3002<\/p>\n

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    \u5b57\u96c6\u7684\u7c21\u5beb<\/p>\n

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<<d>>\u4ee3\u8868<<[0-9]>>;<\/p>\n

<<w>>\u4ee3\u8868\u55ae\u8a5e\u5b57\u5143\u3002\u9019\u500b\u662f\u96a8\u6b63\u5247\u8868\u9054\u5f0f\u5be6\u73fe\u7684\u4e0d\u540c\u800c\u6709\u4e9b\u5dee\u7570\u3002\u7d55\u5927\u591a\u6578\u7684\u6b63\u5247\u8868\u9054\u5f0f\u5be6\u73fe\u7684\u55ae\u8a5e\u5b57\u96c6\u90fd\u5305\u62ec\u4e86<<A-Za-z0-9_]>>\u3002<\/p>\n

<<s>>\u4ee3\u8868\u300c\u767d\u5b57\u5143\u300d\u3002\u9019\u500b\u4e5f\u662f\u548c\u4e0d\u540c\u7684\u5be6\u73fe\u6709\u95dc\u7684\u3002\u5728\u7d55\u5927\u591a\u6578\u7684\u5be6\u73fe\u4e2d\uff0c\u90fd\u5305\u62ec\u4e86\u7a7a\u683c\u7b26\u548cTab\u7b26\uff0c\u4ee5\u53ca\u63db\u884c\u63db\u884c\u7b26<<
\n>>\u3002<\/p>\n

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\u53d6\u53cd\u5b57\u96c6\u7684\u7c21\u5beb<\/p>\n

<<[S]>> = <<[^s]>><\/p>\n

<<[W]>> = <<[^w]>><\/p>\n

<<[D]>> = <<[^d]>><\/p>\n

    \u5b57\u96c6\u7684\u91cd\u8907<\/p>\n

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6.\u4f7f\u7528?*\u6216+ \u9032\u884c\u91cd\u8907<\/strong><\/font><\/p>\n

?\uff1a\u544a\u8a34\u5f15\u64ce\u7b26\u5408\u524d\u5c0e\u5b57\u51430\u6b21\u6216\u4e00\u6b21\u3002\u4e8b\u5be6\u4e0a\u662f\u8868\u793a\u524d\u5c0e\u5b57\u5143\u662f\u53ef\u9078\u7684\u3002<\/p>\n

+\uff1a\u544a\u8a34\u5f15\u64ce\u7b26\u5408\u524d\u5c0e\u5b57\u51431\u6b21\u6216\u591a\u6b21<\/p>\n

*\uff1a\u544a\u8a34\u5f15\u64ce\u7b26\u5408\u524d\u5c0e\u5b57\u51430\u6b21\u6216\u591a\u6b21<\/p>\n

<[A-Za-z][A-Za-z0-9]*>\u7b26\u5408\u6c92\u6709\u5c6c\u6027\u7684HTML\u6a19\u7c64\uff0c\u300c<\u300d\u4ee5\u53ca\u300c>\u300d\u662f\u6587\u5b57\u5143\u865f\u3002\u7b2c\u4e00\u500b\u5b57\u96c6\u7b26\u5408\u4e00\u500b\u5b57\u6bcd\uff0c\u7b2c\u4e8c\u500b\u5b57\u96c6\u7b26\u5408\u4e00\u500b\u5b57\u6bcd\u6216\u6578\u5b57\u3002<\/p>\n

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    \u9650\u5236\u6027\u91cd\u8907<\/p>\n

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    \u6ce8\u610f\u8caa\u5a6a\u6027<\/p>\n

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    \u6df1\u5165\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u5167\u5b9a<\/p>\n

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    \u7528\u61f6\u60f0\u6027\u53d6\u4ee3\u8caa\u5a6a\u6027<\/p>\n

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    \u60f0\u6027\u5ef6\u4f38\u7684\u4e00\u500b\u66ff\u4ee3\u5c08\u6848<\/p>\n

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\n]( Unix)\u7684\u7c21\u5beb\u3002<\/p>\n

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\u73fe\u4ee3\u7684\u5de5\u5177\u548c\u8a9e\u7cfb\u80fd\u5920\u5c07\u6b63\u5247\u8868\u9054\u5f0f\u61c9\u7528\u5230\u5f88\u5927\u7684\u5b57\u4e32\u751a\u81f3\u6574\u500b\u6a94\u6848\u4e0a\u53bb\u3002\u672c\u6559\u5b78\u8a0e\u8ad6\u7684\u6240\u6709\u6b63\u5247\u8868\u9054\u5f0f\u5be6\u73fe\u90fd\u63d0\u4f9b\u4e00\u500b\u9078\u9805\uff0c\u53ef\u4ee5\u4f7f\u300c.\u300d\u7b26\u5408\u6240\u6709\u7684\u5b57\u5143\uff0c\u5167\u542b\u65b0\u884c\u7b26\u3002\u5728RegexBuddy, EditPad Pro\u6216PowerGREP\u7b49\u5de5\u5177\u4e2d\uff0c\u4f60\u53ef\u4ee5\u7c21\u55ae\u7684\u9078\u4e2d\u300c\u9ede\u865f\u7b26\u5408\u65b0\u884c\u7b26\u300d\u3002\u5728Perl\u4e2d\uff0c\u300c.\u300d\u53ef\u4ee5\u7b26\u5408\u65b0\u884c\u7b26\u7684\u6a21\u5f0f\u88ab\u7a31\u4f5c\u300c\u55ae\u884c\u6a21\u5f0f\u300d\u3002\u5f88\u4e0d\u5e78\uff0c\u9019\u662f\u4e00\u500b\u5f88\u5bb9\u6613\u6df7\u6dc6\u7684\u540d\u8a5e\u3002\u56e0\u70ba\u9084\u6709\u6240\u8b02\u300c\u591a\u884c\u6a21\u5f0f\u300d\u3002\u591a\u884c\u6a21\u5f0f\u53ea\u5f71\u97ff\u884c\u9996\u884c\u5c3e\u7684\u9328\u5b9a(anchor)\uff0c\u800c\u55ae\u884c\u6a21\u5f0f\u53ea\u5f71\u97ff\u300c.\u300d\u3002<\/p>\n

\u5176\u4ed6\u8a9e\u7cfb\u548c\u6b63\u5247\u8868\u9054\u5f0f\u5eab\u4e5f\u63a1\u7528\u4e86Perl\u7684\u8853\u8a9e\u5b9a\u7fa9\u3002\u7576\u5728.NET Framework\u4e2d\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u985e\u6642\uff0c\u4f60\u53ef\u4ee5\u7528\u985e\u4f3c\u4e0b\u9762\u7684\u8a9e\u53e5\u4f86\u555f\u52d5\u55ae\u884c\u6a21\u5f0f\uff1aRegex.Match(\u300cstring\u300d,\u300dregex\u300d,RegexOptions.SingleLine)<\/p>\n

    \u4fdd\u5b88\u7684\u4f7f\u7528\u9ede\u865f\u300c.\u300d<\/p>\n

\u9ede\u865f\u53ef\u4ee5\u8aaa\u662f\u6700\u5f37\u5927\u7684\u5143\u5b57\u5143\u3002\u5b83\u5bb9\u8a31\u4f60\u5077\u61f6\uff1a\u7528\u4e00\u500b\u9ede\u865f\uff0c\u5c31\u80fd\u7b26\u5408\u5e7e\u4e4e\u6240\u6709\u7684\u5b57\u5143\u3002\u4f46\u662f\u554f\u984c\u5728\u65bc\uff0c\u5b83\u4e5f\u5e38\u5e38\u6703\u7b26\u5408\u4e0d\u8a72\u7b26\u5408\u7684\u5b57\u5143\u3002<\/p>\n

\u6211\u6703\u4ee5\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\u4f86\u8aaa\u660e\u3002\u8b93\u6211\u5011\u770b\u770b\u5982\u4f55\u7b26\u5408\u4e00\u500b\u5177\u6709\u300cmm\/dd\/yy\u300d\u683c\u5f0f\u7684\u65e5\u671f\uff0c\u4f46\u662f\u6211\u5011\u60f3\u5bb9\u8a31\u4f7f\u7528\u8005\u4f86\u9078\u53d6\u5206\u9694\u8a2d\u5b9a\u3002\u5f88\u5feb\u80fd\u60f3\u5230\u7684\u4e00\u500b\u5c08\u6848\u662f<<dd.dd.dd>>\u3002\u770b\u4e0a\u53bb\u5b83\u80fd\u7b26\u5408\u65e5\u671f\u300c02\/12\/03\u300d\u3002\u554f\u984c\u5728\u65bc02512703\u4e5f\u6703\u88ab\u8a8d\u70ba\u662f\u4e00\u500b\u6709\u6548\u7684\u65e5\u671f\u3002<\/p>\n

<<dd[-\/.]dd[-\/.]dd>>\u770b\u4e0a\u53bb\u662f\u4e00\u500b\u597d\u4e00\u9ede\u7684\u89e3\u6c7a\u5c08\u6848\u3002\u8a18\u4f4f\u9ede\u865f\u5728\u4e00\u500b\u5b57\u96c6\u88e1\u4e0d\u662f\u5143\u5b57\u5143\u3002\u9019\u500b\u5c08\u6848\u9060\u4e0d\u5920\u5b8c\u5584\uff0c\u5b83\u6703\u7b26\u5408\u300c99\/99\/99\u300d\u3002\u800c<<[0-1]d[-\/.][0-3]d[-\/.]dd>>\u53c8\u66f4\u9032\u4e00\u6b65\u3002\u5118\u7ba1\u4ed6\u4e5f\u6703\u7b26\u5408\u300c19\/39\/99\u300d\u3002\u4f60\u60f3\u8981\u4f60\u7684\u6b63\u5247\u8868\u9054\u5f0f\u9054\u5230\u5982\u4f55\u5b8c\u7f8e\u7684\u7a0b\u5ea6\u53d6\u6c7a\u65bc\u4f60\u60f3\u9054\u5230\u4ec0\u9ebc\u6a23\u7684\u76ee\u7684\u3002\u5982\u679c\u4f60\u60f3\u6821\u9a57\u4f7f\u7528\u8005\u8f38\u5165\uff0c\u5247\u9700\u8981\u76e1\u53ef\u80fd\u7684\u5b8c\u7f8e\u3002\u5982\u679c\u4f60\u53ea\u662f\u60f3\u5206\u6790\u4e00\u500b\u5df2\u77e5\u7684\u6e90\uff0c\u4e26\u4e14\u6211\u5011\u77e5\u9053\u6c92\u6709\u932f\u8aa4\u7684\u8cc7\u6599\uff0c\u7528\u4e00\u500b\u6bd4\u8f03\u597d\u7684\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u7b26\u5408\u4f60\u60f3\u8981\u641c\u5c0b\u7684\u5b57\u5143\u5c31\u5df2\u7d93\u8db3\u5920\u3002<\/p>\n

 <\/p>\n

8.\u5b57\u4e32\u958b\u59cb\u548c\u7d50\u675f\u7684\u9328\u5b9a<\/p>\n

\u9328\u5b9a\u548c\u4e00\u822c\u7684\u6b63\u5247\u8868\u9054\u5f0f\u7b26\u865f\u4e0d\u540c\uff0c\u5b83\u4e0d\u7b26\u5408\u4efb\u4f55\u5b57\u5143\u3002\u76f8\u53cd\uff0c\u4ed6\u5011\u7b26\u5408\u7684\u662f\u5b57\u5143\u4e4b\u524d\u6216\u4e4b\u5f8c\u7684\u4f4d\u7f6e\u3002\u300c^\u300d\u7b26\u5408\u4e00\u884c\u5b57\u4e32\u7b2c\u4e00\u500b\u5b57\u5143\u524d\u7684\u4f4d\u7f6e\u3002<<^a>>\u5c07\u6703\u7b26\u5408\u5b57\u4e32\u300cabc\u300d\u4e2d\u7684a\u3002<<^b>>\u5c07\u4e0d\u6703\u7b26\u5408\u300cabc\u300d\u4e2d\u7684\u4efb\u4f55\u5b57\u5143\u3002<\/p>\n

\u985e\u4f3c\u7684\uff0c$\u7b26\u5408\u5b57\u4e32\u4e2d\u6700\u5f8c\u4e00\u500b\u5b57\u5143\u7684\u5f8c\u9762\u7684\u4f4d\u7f6e\u3002\u6240\u4ee5<<c$>>\u7b26\u5408\u300cabc\u300d\u4e2d\u7684c\u3002<\/p>\n

    \u9328\u5b9a\u7684\u61c9\u7528<\/p>\n

\u5728\u5beb\u7a0b\u5f0f\u8a9e\u7cfb\u4e2d\u6821\u9a57\u4f7f\u7528\u8005\u8f38\u5165\u6642\uff0c\u4f7f\u7528\u9328\u5b9a\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u4f60\u60f3\u6821\u9a57\u4f7f\u7528\u8005\u7684\u8f38\u5165\u70ba\u6574\u6578\uff0c\u7528<<^d+$>>\u3002<\/p>\n

\u4f7f\u7528\u8005\u8f38\u5165\u4e2d\uff0c\u5e38\u5e38\u6703\u6709\u591a\u9918\u7684\u524d\u5c0e\u7a7a\u683c\u6216\u7d50\u675f\u7a7a\u683c\u3002\u4f60\u53ef\u4ee5\u7528<<^s*>>\u548c<<s*$>>\u4f86\u7b26\u5408\u524d\u5c0e\u7a7a\u683c\u6216\u7d50\u675f\u7a7a\u683c\u3002<\/p>\n

    \u4f7f\u7528\u300c^\u300d\u548c\u300c$\u300d\u4f5c\u70ba\u884c\u7684\u958b\u59cb\u548c\u7d50\u675f\u9328\u5b9a<\/p>\n

\u5982\u679c\u4f60\u6709\u4e00\u500b\u5305\u62ec\u4e86\u591a\u884c\u7684\u5b57\u4e32\u3002\u4f8b\u5982\uff1a\u300cfirst line<\/p>\n

second line\u300d(\u5176\u4e2d<\/p>\n

\u8868\u793a\u4e00\u500b\u65b0\u884c\u7b26)\u3002\u5e38\u5e38\u9700\u8981\u5c0d\u6bcf\u884c\u5206\u5225\u8655\u7406\u800c\u4e0d\u662f\u6574\u500b\u5b57\u4e32\u3002\u56e0\u6b64\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u90fd\u63d0\u4f9b\u4e00\u500b\u9078\u9805\uff0c\u53ef\u4ee5\u5ef6\u4f38\u9019\u5169\u7a2e\u9328\u5b9a\u7684\u542b\u7fa9\u3002\u300c^\u300d\u53ef\u4ee5\u7b26\u5408\u5b57\u4e32\u7684\u958b\u59cb\u4f4d\u7f6e(\u5728f\u4e4b\u524d)\uff0c\u4ee5\u53ca\u6bcf\u4e00\u500b\u65b0\u884c\u7b26\u7684\u5f8c\u9762\u4f4d\u7f6e(\u5728<\/p>\n

\u548cs\u4e4b\u9593)\u3002\u985e\u4f3c\u7684\uff0c$\u6703\u7b26\u5408\u5b57\u4e32\u7684\u7d50\u675f\u4f4d\u7f6e(\u6700\u5f8c\u4e00\u500be\u4e4b\u5f8c)\uff0c\u4ee5\u53ca\u6bcf\u500b\u65b0\u884c\u7b26\u7684\u524d\u9762(\u5728e\u8207<\/p>\n

\u4e4b\u9593)\u3002<\/p>\n

\u5728.NET\u4e2d\uff0c\u7576\u4f60\u4f7f\u7528\u5982\u4e0b\u4ee3\u78bc\u6642\uff0c\u5c07\u6703\u5b9a\u7fa9\u9328\u5b9a\u7b26\u5408\u6bcf\u4e00\u500b\u65b0\u884c\u7b26\u7684\u524d\u9762\u548c\u5f8c\u9762\u4f4d\u7f6e\uff1aRegex.Match(\u300cstring\u300d, \u300cregex\u300d, RegexOptions.Multiline)<\/p>\n

\u61c9\u7528\uff1astring str = Regex.Replace(Original, \u300c^\u300d, \u300c> \u300c, RegexOptions.Multiline)–\u5c07\u6703\u5728\u6bcf\u884c\u7684\u884c\u9996\u63d2\u5165\u300c> \u300d\u3002<\/p>\n

    \u7d55\u5c0d\u9328\u5b9a<\/p>\n

<<A>>\u53ea\u7b26\u5408\u6574\u500b\u5b57\u4e32\u7684\u958b\u59cb\u4f4d\u7f6e\uff0c<<\u001a>>\u53ea\u7b26\u5408\u6574\u500b\u5b57\u4e32\u7684\u7d50\u675f\u4f4d\u7f6e\u3002\u5373\u4f7f\u4f60\u4f7f\u7528\u4e86\u300c\u591a\u884c\u6a21\u5f0f\u300d\uff0c<<A>>\u548c<<\u001a>>\u4e5f\u6c38\u9060\u4e0d\u7b26\u5408\u65b0\u884c\u7b26\u3002<\/p>\n

\u5373\u4f7f\u001a\u548c$\u53ea\u7b26\u5408\u5b57\u4e32\u7684\u7d50\u675f\u4f4d\u7f6e\uff0c\u4ecd\u7136\u6709\u4e00\u500b\u4f8b\u5916\u7684\u60c5\u6cc1\u3002\u5982\u679c\u5b57\u4e32\u4ee5\u65b0\u884c\u7b26\u7d50\u675f\uff0c\u5247\u001a\u548c$\u5c07\u6703\u7b26\u5408\u65b0\u884c\u7b26\u524d\u9762\u7684\u4f4d\u7f6e\uff0c\u800c\u4e0d\u662f\u6574\u500b\u5b57\u4e32\u7684\u6700\u5f8c\u9762\u3002\u9019\u500b\u300c\u6539\u9032\u300d\u662f\u7531Perl\u5f15\u9032\u7684\uff0c\u7136\u5f8c\u88ab\u8a31\u591a\u7684\u6b63\u5247\u8868\u9054\u5f0f\u5be6\u73fe\u6240\u9075\u5faa\uff0c\u5167\u542bJava\uff0c.NET\u7b49\u3002\u5982\u679c\u61c9\u7528<<^[a-z]+$>>\u5230\u300cjoe
\n\u300d\uff0c\u5247\u7b26\u5408\u7d50\u679c\u662f\u300cjoe\u300d\u800c\u4e0d\u662f\u300cjoe
\n\u300d\u3002<\/p>\n

9.\u55ae\u8a5e\u908a\u754c<\/p>\n

\u5143\u5b57\u5143<<\b>>\u4e5f\u662f\u4e00\u7a2e\u5c0d\u4f4d\u7f6e\u9032\u884c\u7b26\u5408\u7684\u300c\u9328\u300d\u3002\u9019\u7a2e\u7b26\u5408\u662f0\u9577\u5ea6\u7b26\u5408\u3002<\/p>\n

\u67094\u7a2e\u4f4d\u7f6e\u88ab\u8a8d\u70ba\u662f\u300c\u55ae\u8a5e\u908a\u754c\u300d\uff1a<\/p>\n

1)  \u5728\u5b57\u4e32\u7684\u7b2c\u4e00\u500b\u5b57\u5143\u524d\u7684\u4f4d\u7f6e(\u5982\u679c\u5b57\u4e32\u7684\u7b2c\u4e00\u500b\u5b57\u5143\u662f\u4e00\u500b\u300c\u55ae\u8a5e\u5b57\u5143\u300d)<\/p>\n

2)  \u5728\u5b57\u4e32\u7684\u6700\u5f8c\u4e00\u500b\u5b57\u5143\u5f8c\u7684\u4f4d\u7f6e(\u5982\u679c\u5b57\u4e32\u7684\u6700\u5f8c\u4e00\u500b\u5b57\u5143\u662f\u4e00\u500b\u300c\u55ae\u8a5e\u5b57\u5143\u300d)<\/p>\n

3)  \u5728\u4e00\u500b\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u548c\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u4e4b\u9593\uff0c\u5176\u4e2d\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u7dca\u8ddf\u5728\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u4e4b\u5f8c<\/p>\n

4)  \u5728\u4e00\u500b\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u548c\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u4e4b\u9593\uff0c\u5176\u4e2d\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u7dca\u8ddf\u5728\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u5f8c\u9762<\/p>\n

\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u662f\u53ef\u4ee5\u7528\u300cw\u300d\u7b26\u5408\u7684\u5b57\u5143\uff0c\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u662f\u53ef\u4ee5\u7528\u300cW\u300d\u7b26\u5408\u7684\u5b57\u5143\u3002\u5728\u5927\u591a\u6578\u7684\u6b63\u5247\u8868\u9054\u5f0f\u5be6\u73fe\u4e2d\uff0c\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u901a\u5e38\u5167\u542b<<[a-zA-Z0-9_]>>\u3002<\/p>\n

\u4f8b\u5982\uff1a<<\b4\b>>\u80fd\u5920\u7b26\u5408\u55ae\u500b\u76844\u800c\u4e0d\u662f\u4e00\u500b\u66f4\u5927\u6578\u7684\u4e00\u90e8\u5206\u3002\u9019\u500b\u6b63\u5247\u8868\u9054\u5f0f\u4e0d\u6703\u7b26\u5408\u300c44\u300d\u4e2d\u76844\u3002<\/p>\n

\u63db\u7a2e\u8aaa\u6cd5\uff0c\u5e7e\u4e4e\u53ef\u4ee5\u8aaa<<\b>>\u7b26\u5408\u4e00\u500b\u300c\u5b57\u6bcd\u6578\u5b57\u5e8f\u5217\u300d\u7684\u958b\u59cb\u548c\u7d50\u675f\u7684\u4f4d\u7f6e\u3002<\/p>\n

\u300c\u55ae\u8a5e\u908a\u754c\u300d\u7684\u53d6\u53cd\u96c6\u70ba<<B>>\uff0c\u4ed6\u8981\u7b26\u5408\u7684\u4f4d\u7f6e\u662f\u5169\u500b\u300c\u55ae\u8a5e\u5b57\u5143\u300d\u4e4b\u9593\u6216\u662f\u5169\u500b\u300c\u975e\u55ae\u8a5e\u5b57\u5143\u300d\u4e4b\u9593\u7684\u4f4d\u7f6e\u3002<\/p>\n

    \u6df1\u5165\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u5167\u5b9a<\/p>\n

\u8b93\u6211\u5011\u770b\u770b\u628a\u6b63\u5247\u8868\u9054\u5f0f<<\bis\b>>\u61c9\u7528\u5230\u5b57\u4e32\u300cThis island is beautiful\u300d\u3002\u5f15\u64ce\u5148\u8655\u7406\u7b26\u865f<<\b>>\u3002\u56e0\u70ba\b\u662f0\u9577\u5ea6 \uff0c\u6240\u4ee5\u7b2c\u4e00\u500b\u5b57\u5143T\u524d\u9762\u7684\u4f4d\u7f6e\u6703\u88ab\u8003\u5bdf\u3002\u56e0\u70baT\u662f\u4e00\u500b\u300c\u55ae\u8a5e\u5b57\u5143\u300d\uff0c\u800c\u5b83\u524d\u9762\u7684\u5b57\u5143\u662f\u4e00\u500b\u7a7a\u5b57\u5143(void)\uff0c\u6240\u4ee5\b\u7b26\u5408\u4e86\u55ae\u8a5e\u908a\u754c\u3002\u63a5\u8457<<i>>\u548c\u7b2c\u4e00\u500b\u5b57\u5143\u300cT\u300d\u7b26\u5408\u5931\u6557\u3002\u7b26\u5408\u904e\u7a0b\u7e7c\u7e8c\u9032\u884c\uff0c\u76f4\u5230\u7b2c\u4e94\u500b\u7a7a\u683c\u7b26\uff0c\u548c\u7b2c\u56db\u500b\u5b57\u5143\u300cs\u300d\u4e4b\u9593\u53c8\u7b26\u5408\u4e86<<\b>>\u3002\u7136\u800c\u7a7a\u683c\u7b26\u548c<<i>>\u4e0d\u7b26\u5408\u3002\u7e7c\u7e8c\u5411\u5f8c\uff0c\u5230\u4e86\u7b2c\u516d\u500b\u5b57\u5143\u300ci\u300d\uff0c\u548c\u7b2c\u4e94\u500b\u7a7a\u683c\u5b57\u5143\u4e4b\u9593\u7b26\u5408\u4e86<<\b>>\uff0c\u7136\u5f8c<<is>>\u548c\u7b2c\u516d\u3001\u7b2c\u4e03\u500b\u5b57\u5143\u90fd\u7b26\u5408\u4e86\u3002\u7136\u800c\u7b2c\u516b\u500b\u5b57\u5143\u548c\u7b2c\u4e8c\u500b\u300c\u55ae\u8a5e\u908a\u754c\u300d\u4e0d\u7b26\u5408\uff0c\u6240\u4ee5\u7b26\u5408\u53c8\u5931\u6557\u4e86\u3002\u5230\u4e86\u7b2c13\u500b\u5b57\u5143i\uff0c\u56e0\u70ba\u548c\u524d\u9762\u4e00\u500b\u7a7a\u683c\u7b26\u5f62\u6210\u300c\u55ae\u8a5e\u908a\u754c\u300d\uff0c\u540c\u6642<<is>>\u548c\u300cis\u300d\u7b26\u5408\u3002\u5f15\u64ce\u63a5\u8457\u5617\u8a66\u7b26\u5408\u7b2c\u4e8c\u500b<<\b>>\u3002\u56e0\u70ba\u7b2c15\u500b\u7a7a\u683c\u7b26\u548c\u300cs\u300d\u5f62\u6210\u55ae\u8a5e\u908a\u754c\uff0c\u6240\u4ee5\u7b26\u5408\u5b8c\u6210\u3002\u5f15\u64ce\u300c\u6025\u8457\u300d\u8fd4\u56de\u5b8c\u6210\u7b26\u5408\u7684\u7d50\u679c\u3002<\/p>\n

10.  \u9078\u53d6\u7b26<\/strong><\/font><\/p>\n

\u6b63\u5247\u8868\u9054\u5f0f\u4e2d\u300c|\u300d\u8868\u793a\u9078\u53d6\u3002\u4f60\u53ef\u4ee5\u7528\u9078\u53d6\u7b26\u7b26\u5408\u591a\u500b\u53ef\u80fd\u7684\u6b63\u5247\u8868\u9054\u5f0f\u4e2d\u7684\u4e00\u500b\u3002<\/p>\n

\u5982\u679c\u4f60\u60f3\u641c\u5c0b\u6587\u5b57\u300ccat\u300d\u6216\u300cdog\u300d\uff0c\u4f60\u53ef\u4ee5\u7528<<cat|dog>>\u3002\u5982\u679c\u4f60\u60f3\u6709\u66f4\u591a\u7684\u9078\u53d6\uff0c\u4f60\u53ea\u8981\u5ef6\u4f38\u6e05\u55ae<<cat|dog|mouse|fish>>\u3002<\/p>\n

\u9078\u53d6\u7b26\u5728\u6b63\u5247\u8868\u9054\u5f0f\u4e2d\u5177\u6709\u6700\u4f4e\u7684\u512a\u5148\u7d1a\uff0c\u4e5f\u5c31\u662f\u8aaa\uff0c\u5b83\u544a\u8a34\u5f15\u64ce\u8981\u9ebc\u7b26\u5408\u9078\u53d6\u7b26\u5de6\u908a\u7684\u6240\u6709\u8868\u9054\u5f0f\uff0c\u8981\u9ebc\u7b26\u5408\u53f3\u908a\u7684\u6240\u6709\u8868\u9054\u5f0f\u3002\u4f60\u4e5f\u53ef\u4ee5\u7528\u5713\u62ec\u865f\u4f86\u9650\u5236\u9078\u53d6\u7b26\u7684\u4f5c\u7528\u7bc4\u570d\u3002\u5982<<\b(cat|dog)\b>>\uff0c\u9019\u6a23\u544a\u8a34\u6b63\u5247\u5f15\u64ce\u628a(cat|dog)\u7576\u6210\u4e00\u500b\u6b63\u5247\u8868\u9054\u5f0f\u55ae\u4f4d\u4f86\u8655\u7406\u3002<\/p>\n

    \u6ce8\u610f\u6b63\u5247\u5f15\u64ce\u7684\u300c\u6025\u65bc\u8868\u529f\u300d\u6027<\/p>\n

\u6b63\u5247\u5f15\u64ce\u662f\u6025\u5207\u7684\uff0c\u7576\u5b83\u627e\u5230\u4e00\u500b\u6709\u6548\u7684\u7b26\u5408\u6642\uff0c\u5b83\u6703\u505c\u6b62\u641c\u5c0b\u3002\u56e0\u6b64\u5728\u4e00\u5b9a\u689d\u4ef6\u4e0b\uff0c\u9078\u53d6\u7b26\u5169\u908a\u7684\u8868\u9054\u5f0f\u7684\u9806\u5e8f\u5c0d\u7d50\u679c\u6703\u6709\u5f71\u97ff\u3002\u5047\u8a2d\u4f60\u60f3\u7528\u6b63\u5247\u8868\u9054\u5f0f\u641c\u5c0b\u4e00\u500b\u5beb\u7a0b\u5f0f\u8a9e\u7cfb\u7684\u51fd\u6578\u6e05\u55ae\uff1aGet\uff0cGetValue\uff0cSet\u6216SetValue\u3002\u4e00\u500b\u660e\u986f\u7684\u89e3\u6c7a\u5c08\u6848\u662f<<Get|GetValue|Set|SetValue>>\u3002\u8b93\u6211\u5011\u770b\u770b\u7576\u641c\u5c0bSetValue\u6642\u7684\u7d50\u679c\u3002<\/p>\n

\u56e0\u70ba<<Get>>\u548c<<GetValue>>\u90fd\u5931\u6557\u4e86\uff0c\u800c<<Set>>\u7b26\u5408\u5b8c\u6210\u3002\u56e0\u70ba\u6b63\u5247\u5c0e\u5411\u7684\u5f15\u64ce\u90fd\u662f\u300c\u6025\u5207\u300d\u7684\uff0c\u6240\u4ee5\u5b83\u6703\u8fd4\u56de\u7b2c\u4e00\u500b\u5b8c\u6210\u7684\u7b26\u5408\uff0c\u5c31\u662f\u300cSet\u300d\uff0c\u800c\u4e0d\u53bb\u7e7c\u7e8c\u641c\u5c0b\u662f\u5426\u6709\u5176\u4ed6\u66f4\u597d\u7684\u7b26\u5408\u3002<\/p>\n

\u548c\u6211\u5011\u671f\u671b\u7684\u76f8\u53cd\uff0c\u6b63\u5247\u8868\u9054\u5f0f\u4e26\u6c92\u6709\u7b26\u5408\u6574\u500b\u5b57\u4e32\u3002\u6709\u5e7e\u7a2e\u53ef\u80fd\u7684\u89e3\u6c7a\u8fa6\u6cd5\u3002\u4e00\u662f\u8003\u616e\u5230\u6b63\u5247\u5f15\u64ce\u7684\u300c\u6025\u5207\u300d\u6027\uff0c\u6539\u8b8a\u9078\u9805\u7684\u9806\u5e8f\uff0c\u4f8b\u5982\u6211\u5011\u4f7f\u7528<<GetValue|Get|SetValue|Set>>\uff0c\u9019\u6a23\u6211\u5011\u5c31\u53ef\u4ee5\u512a\u5148\u641c\u5c0b\u6700\u9577\u7684\u7b26\u5408\u3002\u6211\u5011\u4e5f\u53ef\u4ee5\u628a\u56db\u500b\u9078\u9805\u7d50\u5408\u8d77\u4f86\u6210\u5169\u500b\u9078\u9805\uff1a<<Get(Value)?|Set(Value)?>>\u3002\u56e0\u70ba\u554f\u865f\u91cd\u8907\u7b26\u662f\u8caa\u5a6a\u7684\uff0c\u6240\u4ee5SetValue\u7e3d\u6703\u5728Set\u4e4b\u524d\u88ab\u7b26\u5408\u3002<\/p>\n

\u4e00\u500b\u66f4\u597d\u7684\u5c08\u6848\u662f\u4f7f\u7528\u55ae\u8a5e\u908a\u754c\uff1a<<\b(Get|GetValue|Set|SetValue)\b>>\u6216<<\b(Get(Value)?|Set(Value)?\b>>\u3002\u66f4\u9032\u4e00\u6b65\uff0c\u65e2\u7136\u6240\u6709\u7684\u9078\u53d6\u90fd\u6709\u76f8\u540c\u7684\u7d50\u5c3e\uff0c\u6211\u5011\u53ef\u4ee5\u628a\u6b63\u5247\u8868\u9054\u5f0f\u6539\u5584\u70ba<<\b(Get|Set)(Value)?\b>>\u3002<\/p>\n

11.  \u7d44\u8207\u5411\u5f8c\u5f15\u7528<\/strong><\/font><\/p>\n

\u628a\u6b63\u5247\u8868\u9054\u5f0f\u7684\u4e00\u90e8\u5206\u653e\u5728\u5713\u62ec\u865f\u5167\uff0c\u4f60\u53ef\u4ee5\u5c07\u5b83\u5011\u5f62\u6210\u7d44\u3002\u7136\u5f8c\u4f60\u53ef\u4ee5\u5c0d\u6574\u500b\u7d44\u4f7f\u7528\u4e00\u4e9b\u6b63\u5247\u64cd\u4f5c\uff0c\u4f8b\u5982\u91cd\u8907\u64cd\u4f5c\u7b26\u3002<\/p>\n

\u8981\u6ce8\u610f\u7684\u662f\uff0c\u53ea\u6709\u5713\u62ec\u865f\u300c()\u300d\u624d\u80fd\u7528\u65bc\u5f62\u6210\u7d44\u3002\u300c[]\u300d\u7528\u65bc\u5b9a\u7fa9\u5b57\u96c6\u3002\u300c{}\u300d\u7528\u65bc\u5b9a\u7fa9\u91cd\u8907\u64cd\u4f5c\u3002<\/p>\n

\u7576\u7528\u300c()\u300d\u5b9a\u7fa9\u4e86\u4e00\u500b\u6b63\u5247\u8868\u9054\u5f0f\u7d44\u5f8c\uff0c\u6b63\u5247\u5f15\u64ce\u5247\u6703\u628a\u88ab\u7b26\u5408\u7684\u7d44\u6309\u7167\u9806\u5e8f\u7de8\u865f\uff0c\u5b58\u5165\u5feb\u53d6\u3002\u7576\u5c0d\u88ab\u7b26\u5408\u7684\u7d44\u9032\u884c\u5411\u5f8c\u5f15\u7528\u7684\u6642\u5019\uff0c\u53ef\u4ee5\u7528\u300c\u6578\u5b57\u300d\u7684\u6a21\u5f0f\u9032\u884c\u5f15\u7528\u3002<<1>>\u5f15\u7528\u7b2c\u4e00\u500b\u7b26\u5408\u7684\u5f8c\u5411\u5f15\u7528\u7d44\uff0c<<2>>\u5f15\u7528\u7b2c\u4e8c\u500b\u7d44\uff0c\u4ee5\u6b64\u985e\u63a8\uff0c<<
\n>>\u5f15\u7528\u7b2cn\u500b\u7d44\u3002\u800c<< >>\u5247\u5f15\u7528\u6574\u500b\u88ab\u7b26\u5408\u7684\u6b63\u5247\u8868\u9054\u5f0f\u672c\u8eab\u3002\u6211\u5011\u770b\u4e00\u500b\u4f8b\u5b50\u3002<\/p>\n

\u5047\u8a2d\u4f60\u60f3\u7b26\u5408\u4e00\u500bHTML\u6a19\u7c64\u7684\u958b\u59cb\u6a19\u7c64\u548c\u7d50\u675f\u6a19\u7c64\uff0c\u4ee5\u53ca\u6a19\u7c64\u4e2d\u9593\u7684\u6587\u5b57\u3002\u6bd4\u5982<B>This is a test<\/B>\uff0c\u6211\u5011\u8981\u7b26\u5408<B>\u548c<\/B>\u4ee5\u53ca\u4e2d\u9593\u7684\u6587\u5b57\u3002\u6211\u5011\u53ef\u4ee5\u7528\u5982\u4e0b\u6b63\u5247\u8868\u9054\u5f0f\uff1a\u300c<([A-Z][A-Z0-9]*)[^>]*>.*?<\/1>\u300d<\/p>\n

\u9996\u5148\uff0c\u300c<\u300d\u5c07\u6703\u7b26\u5408\u300c<B>\u300d\u7684\u7b2c\u4e00\u500b\u5b57\u5143\u300c<\u300d\u3002\u7136\u5f8c[A-Z]\u7b26\u5408B\uff0c[A-Z0-9]*\u5c07\u6703\u7b26\u54080\u5230\u591a\u6b21\u5b57\u6bcd\u6578\u5b57\uff0c\u5f8c\u9762\u7dca\u63a5\u84570\u5230\u591a\u500b\u975e\u300c>\u300d\u7684\u5b57\u5143\u3002\u6700\u5f8c\u6b63\u5247\u8868\u9054\u5f0f\u7684\u300c>\u300d\u5c07\u6703\u7b26\u5408\u300c<B>\u300d\u7684\u300c>\u300d\u3002\u63a5\u4e0b\u4f86\u6b63\u5247\u5f15\u64ce\u5c07\u5c0d\u7d50\u675f\u6a19\u7c64\u4e4b\u524d\u7684\u5b57\u5143\u9032\u884c\u60f0\u6027\u7b26\u5408\uff0c\u76f4\u5230\u9047\u5230\u4e00\u500b\u300c<\/\u300d\u7b26\u865f\u3002\u7136\u5f8c\u6b63\u5247\u8868\u9054\u5f0f\u4e2d\u7684\u300c1\u300d\u8868\u793a\u5c0d\u524d\u9762\u7b26\u5408\u7684\u7d44\u300c([A-Z][A-Z0-9]*)\u300d\u9032\u884c\u5f15\u7528\uff0c\u5728\u672c\u4f8b\u4e2d\uff0c\u88ab\u5f15\u7528\u7684\u662f\u6a19\u7c64\u540d\u300cB\u300d\u3002\u6240\u4ee5\u9700\u8981\u88ab\u7b26\u5408\u7684\u7d50\u5c3e\u6a19\u7c64\u70ba\u300c<\/B>\u300d<\/p>\n

\u4f60\u53ef\u4ee5\u5c0d\u76f8\u540c\u7684\u5f8c\u5411\u5f15\u7528\u7d44\u9032\u884c\u591a\u6b21\u5f15\u7528\uff0c<<([a-c])x1x1>>\u5c07\u7b26\u5408\u300caxaxa\u300d\u3001\u300cbxbxb\u300d\u4ee5\u53ca\u300ccxcxc\u300d\u3002\u5982\u679c\u7528\u6578\u5b57\u5f62\u5f0f\u5f15\u7528\u7684\u7d44\u6c92\u6709\u6709\u6548\u7684\u7b26\u5408\uff0c\u5247\u5f15\u7528\u5230\u7684\u5167\u5bb9\u7c21\u55ae\u7684\u70ba\u7a7a\u3002<\/p>\n

\u4e00\u500b\u5f8c\u5411\u5f15\u7528\u4e0d\u80fd\u7528\u65bc\u5b83\u81ea\u8eab\u3002<<([abc]1)>>\u662f\u932f\u8aa4\u7684\u3002\u56e0\u6b64\u4f60\u4e0d\u80fd\u5c07<< >>\u7528\u65bc\u4e00\u500b\u6b63\u5247\u8868\u9054\u5f0f\u7b26\u5408\u672c\u8eab\uff0c\u5b83\u53ea\u80fd\u7528\u65bc\u7f6e\u63db\u64cd\u4f5c\u4e2d\u3002<\/p>\n

\u5f8c\u5411\u5f15\u7528\u4e0d\u80fd\u7528\u65bc\u5b57\u96c6\u5167\u5b9a\u3002<<(a)[1b]>>\u4e2d\u7684<<1>>\u4e26\u4e0d\u8868\u793a\u5f8c\u5411\u5f15\u7528\u3002\u5728\u5b57\u96c6\u5167\u5b9a\uff0c<<1>>\u53ef\u4ee5\u88ab\u89e3\u91cb\u70ba\u516b\u9032\u4f4d\u5f62\u5f0f\u7684\u8f49\u78bc\u3002<\/p>\n

\u5411\u5f8c\u5f15\u7528\u6703\u964d\u4f4e\u5f15\u64ce\u7684\u901f\u5ea6\uff0c\u56e0\u70ba\u5b83\u9700\u8981\u5b58\u5132\u7b26\u5408\u7684\u7d44\u3002\u5982\u679c\u4f60\u4e0d\u9700\u8981\u5411\u5f8c\u5f15\u7528\uff0c\u4f60\u53ef\u4ee5\u544a\u8a34\u5f15\u64ce\u5c0d\u67d0\u500b\u7d44\u4e0d\u5b58\u5132\u3002\u4f8b\u5982\uff1a<<Get(?:Value)>>\u3002\u5176\u4e2d\u300c(\u300d\u5f8c\u9762\u7dca\u8ddf\u7684\u300c?:\u300d\u6703\u544a\u8a34\u5f15\u64ce\u5c0d\u65bc\u7d44(Value)\uff0c\u4e0d\u5b58\u5132\u7b26\u5408\u7684\u503c\u4ee5\u4f9b\u5f8c\u5411\u5f15\u7528\u3002<\/p>\n

    \u91cd\u8907\u64cd\u4f5c\u8207\u5f8c\u5411\u5f15\u7528<\/p>\n

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    \u7d44\u7684\u547d\u540d\u548c\u5f15\u7528<\/p>\n

\u5728PHP\uff0cPython\u4e2d\uff0c\u53ef\u4ee5\u7528<<(?P<name>group)>>\u4f86\u5c0d\u7d44\u9032\u884c\u547d\u540d\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u8a5e\u6cd5?P<name>\u5c31\u662f\u5c0d\u7d44(group)\u9032\u884c\u4e86\u547d\u540d\u3002\u5176\u4e2dname\u662f\u4f60\u5c0d\u7d44\u7684\u8d77\u7684\u540d\u5b57\u3002\u4f60\u53ef\u4ee5\u7528(?P=name)\u9032\u884c\u5f15\u7528\u3002<\/p>\n

.NET\u7684\u547d\u540d\u7d44<\/p>\n

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\u4e0b\u9762\u662f.NET\u4e2d\u7684\u4f8b\u5b50\uff1a<\/p>\n

(?<first>group)(?\u300fsecond\u300fgroup)<\/p>\n

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12.  \u6b63\u5247\u8868\u9054\u5f0f\u7684\u7b26\u5408\u6a21\u5f0f<\/p>\n

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13.  \u539f\u5b50\u7d44\u8207\u9632\u6b62\u56de\u6eaf<\/strong><\/font><\/p>\n

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\n]*,){11}P>>\uff0c\u9019\u6a23\u53ef\u4ee5\u4f7f\u5931\u6557\u56de\u6eaf\u7684\u6b21\u6578\u4e0b\u964d\u523011\u6b21\u3002<\/p>\n

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14.  \u5411\u524d\u6aa2\u8996\u8207\u5411\u5f8c\u6aa2\u8996<\/strong><\/font><\/p>\n

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    \u80af\u5b9a\u548c\u5426\u5b9a\u5f0f\u7684\u5411\u524d\u6aa2\u8996<\/p>\n

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    \u80af\u5b9a\u548c\u5426\u5b9a\u5f0f\u7684\u5148\u5f8c\u6aa2\u8996<\/p>\n

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    \u6df1\u5165\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u5167\u5b9a<\/p>\n

\u8b93\u6211\u5011\u770b\u4e00\u500b\u7c21\u55ae\u4f8b\u5b50\u3002<\/p>\n

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    \u66f4\u9032\u4e00\u6b65\u7406\u89e3\u6b63\u5247\u8868\u9054\u5f0f\u5f15\u64ce\u5167\u5b9a\u6a5f\u5236<\/p>\n

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    \u5411\u524d\u56ae\u5f8c\u6aa2\u8996\u7684\u61c9\u7528<\/p>\n

\u6211\u5011\u4f86\u770b\u9019\u6a23\u4e00\u500b\u4f8b\u5b50\uff1a\u5c0b\u627e\u4e00\u500b\u5177\u67096\u4f4d\u5b57\u5143\u7684\uff0c\u542b\u6709\u300ccat\u300d\u7684\u55ae\u8a5e\u3002<\/p>\n

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<< catw{3}|wcatw{2}|w{2}catw|w{3}cat>><\/p>\n

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<<(?=\bw{6}\b)\bw*catw*\b>><\/p>\n

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<<\b(?=w{6}\b)w{0,3}catw*>><\/p>\n

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\u539f\u6587\u51fa\u8655:http:\/\/imsiren.com\/archives\/560<\/p>\n","protected":false},"excerpt":{"rendered":"

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