{"id":555,"date":"2006-04-12T17:30:41","date_gmt":"2006-04-12T05:30:41","guid":{"rendered":""},"modified":"2006-04-12T17:30:41","modified_gmt":"2006-04-12T05:30:41","slug":"","status":"publish","type":"post","link":"https:\/\/www.mudone.com\/?p=555","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f\u4e4b\u5168\u90e8\u7b26\u53f7\u89e3\u91ca"},"content":{"rendered":"

<table cellspacing="1" cellpadding="3" align="center" bgcolor="#eaeaea" border="0">
\n <tbody>
\n <tr bgcolor="#f0f0f0">
\n <th style="FONT-SIZE: 12px" align="left" width="80" bgcolor="#f0f0f0">\u5b57\u7b26 <\/th>
\n <th style="FONT-SIZE: 12px" align="left">\u63cf\u8ff0<\/th>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\ <\/td>
\n <td style="FONT-SIZE: 12px">\u5c06\u4e0b\u4e00\u4e2a\u5b57\u7b26\u6807\u8bb0\u4e3a\u4e00\u4e2a\u7279\u6b8a\u5b57\u7b26\u3001\u6216\u4e00\u4e2a\u539f\u4e49\u5b57\u7b26\u3001\u6216\u4e00\u4e2a \u5411\u540e\u5f15\u7528\u3001\u6216\u4e00\u4e2a\u516b\u8fdb\u5236\u8f6c\u4e49\u7b26\u3002\u4f8b\u5982\uff0c'n' \u5339\u914d\u5b57\u7b26 &quot;n&quot;\u3002'\\n' \u5339\u914d\u4e00\u4e2a\u6362\u884c\u7b26\u3002\u5e8f\u5217 '\\\\' \u5339\u914d &quot;\\&quot; \u800c &quot;\\(&quot; \u5219\u5339\u914d &quot;(&quot;\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">^ <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u4f4d\u7f6e\u3002\u5982\u679c\u8bbe\u7f6e\u4e86 RegExp \u5bf9\u8c61\u7684 Multiline \u5c5e\u6027\uff0c^ \u4e5f\u5339\u914d '\\n' \u6216 '\\r' \u4e4b\u540e\u7684\u4f4d\u7f6e\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">$ <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u7ed3\u675f\u4f4d\u7f6e\u3002\u5982\u679c\u8bbe\u7f6e\u4e86RegExp \u5bf9\u8c61\u7684 Multiline \u5c5e\u6027\uff0c$ \u4e5f\u5339\u914d '\\n' \u6216 '\\r' \u4e4b\u524d\u7684\u4f4d\u7f6e\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">* <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982\uff0czo* \u80fd\u5339\u914d &quot;z&quot; \u4ee5\u53ca &quot;zoo&quot;\u3002* \u7b49\u4ef7\u4e8e{0,}\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">+ <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982\uff0c'zo+' \u80fd\u5339\u914d &quot;zo&quot; \u4ee5\u53ca &quot;zoo&quot;\uff0c\u4f46\u4e0d\u80fd\u5339\u914d &quot;z&quot;\u3002+ \u7b49\u4ef7\u4e8e {1,}\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">? <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u524d\u9762\u7684\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u4e00\u6b21\u3002\u4f8b\u5982\uff0c&quot;do(es)?&quot; \u53ef\u4ee5\u5339\u914d &quot;do&quot; \u6216 &quot;does&quot; \u4e2d\u7684&quot;do&quot; \u3002? \u7b49\u4ef7\u4e8e {0,1}\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">{n} <\/td>
\n <td style="FONT-SIZE: 12px">n \u662f\u4e00\u4e2a\u975e\u8d1f\u6574\u6570\u3002\u5339\u914d\u786e\u5b9a\u7684 n \u6b21\u3002\u4f8b\u5982\uff0c'o{2}' \u4e0d\u80fd\u5339\u914d &quot;Bob&quot; \u4e2d\u7684 'o'\uff0c\u4f46\u662f\u80fd\u5339\u914d &quot;food&quot; \u4e2d\u7684\u4e24\u4e2a o\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">{n,} <\/td>
\n <td style="FONT-SIZE: 12px">n \u662f\u4e00\u4e2a\u975e\u8d1f\u6574\u6570\u3002\u81f3\u5c11\u5339\u914dn \u6b21\u3002\u4f8b\u5982\uff0c'o{2,}' \u4e0d\u80fd\u5339\u914d &quot;Bob&quot; \u4e2d\u7684 'o'\uff0c\u4f46\u80fd\u5339\u914d &quot;foooood&quot; \u4e2d\u7684\u6240\u6709 o\u3002'o{1,}' \u7b49\u4ef7\u4e8e 'o+'\u3002'o{0,}' \u5219\u7b49\u4ef7\u4e8e 'o*'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">{n,m} <\/td>
\n <td style="FONT-SIZE: 12px">m \u548c n \u5747\u4e3a\u975e\u8d1f\u6574\u6570\uff0c\u5176\u4e2dn &lt;= m\u3002\u6700\u5c11\u5339\u914d n \u6b21\u4e14\u6700\u591a\u5339\u914d m \u6b21\u3002\u4f8b\u5982\uff0c&quot;o{1,3}&quot; \u5c06\u5339\u914d &quot;fooooood&quot; \u4e2d\u7684\u524d\u4e09\u4e2a o\u3002'o{0,1}' \u7b49\u4ef7\u4e8e 'o?'\u3002\u8bf7\u6ce8\u610f\u5728\u9017\u53f7\u548c\u4e24\u4e2a\u6570\u4e4b\u95f4\u4e0d\u80fd\u6709\u7a7a\u683c\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">? <\/td>
\n <td style="FONT-SIZE: 12px">\u5f53\u8be5\u5b57\u7b26\u7d27\u8ddf\u5728\u4efb\u4f55\u4e00\u4e2a\u5176\u4ed6\u9650\u5236\u7b26 (*, +, ?, {n}, {n,}, {n,m}) \u540e\u9762\u65f6\uff0c\u5339\u914d\u6a21\u5f0f\u662f\u975e\u8d2a\u5a6a\u7684\u3002\u975e\u8d2a\u5a6a\u6a21\u5f0f\u5c3d\u53ef\u80fd\u5c11\u7684\u5339\u914d\u6240\u641c\u7d22\u7684\u5b57\u7b26\u4e32\uff0c\u800c\u9ed8\u8ba4\u7684\u8d2a\u5a6a\u6a21\u5f0f\u5219\u5c3d\u53ef\u80fd\u591a\u7684\u5339\u914d\u6240\u641c\u7d22\u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u5b57\u7b26\u4e32 &quot;oooo&quot;\uff0c'o+?' \u5c06\u5339\u914d\u5355\u4e2a &quot;o&quot;\uff0c\u800c 'o+' \u5c06\u5339\u914d\u6240\u6709 'o'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">. <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u9664 &quot;\\n&quot; \u4e4b\u5916\u7684\u4efb\u4f55\u5355\u4e2a\u5b57\u7b26\u3002\u8981\u5339\u914d\u5305\u62ec '\\n' \u5728\u5185\u7684\u4efb\u4f55\u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528\u8c61 '[.\\n]' \u7684\u6a21\u5f0f\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">(pattern) <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d pattern \u5e76\u83b7\u53d6\u8fd9\u4e00\u5339\u914d\u3002\u6240\u83b7\u53d6\u7684\u5339\u914d\u53ef\u4ee5\u4ece\u4ea7\u751f\u7684 Matches \u96c6\u5408\u5f97\u5230\uff0c\u5728VBScript \u4e2d\u4f7f\u7528 SubMatches \u96c6\u5408\uff0c\u5728JScript \u4e2d\u5219\u4f7f\u7528 $0&hellip;$9 \u5c5e\u6027\u3002\u8981\u5339\u914d\u5706\u62ec\u53f7\u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528 '\\(' \u6216 '\\)'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">(?:pattern) <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d pattern \u4f46\u4e0d\u83b7\u53d6\u5339\u914d\u7ed3\u679c\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u662f\u4e00\u4e2a\u975e\u83b7\u53d6\u5339\u914d\uff0c\u4e0d\u8fdb\u884c\u5b58\u50a8\u4f9b\u4ee5\u540e\u4f7f\u7528\u3002\u8fd9\u5728\u4f7f\u7528 &quot;\u6216&quot; \u5b57\u7b26 (|) \u6765\u7ec4\u5408\u4e00\u4e2a\u6a21\u5f0f\u7684\u5404\u4e2a\u90e8\u5206\u662f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff0c 'industr(?:y|ies) \u5c31\u662f\u4e00\u4e2a\u6bd4 'industry|industries' \u66f4\u7b80\u7565\u7684\u8868\u8fbe\u5f0f\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">(?=pattern) <\/td>
\n <td style="FONT-SIZE: 12px">\u6b63\u5411\u9884\u67e5\uff0c\u5728\u4efb\u4f55\u5339\u914d pattern \u7684\u5b57\u7b26\u4e32\u5f00\u59cb\u5904\u5339\u914d\u67e5\u627e\u5b57\u7b26\u4e32\u3002\u8fd9\u662f\u4e00\u4e2a\u975e\u83b7\u53d6\u5339\u914d\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u8be5\u5339\u914d\u4e0d\u9700\u8981\u83b7\u53d6\u4f9b\u4ee5\u540e\u4f7f\u7528\u3002\u4f8b\u5982\uff0c'Windows (?=95|98|NT|2000)' \u80fd\u5339\u914d &quot;Windows 2000&quot; \u4e2d\u7684 &quot;Windows&quot; \uff0c\u4f46\u4e0d\u80fd\u5339\u914d &quot;Windows 3.1&quot; \u4e2d\u7684 &quot;Windows&quot;\u3002\u9884\u67e5\u4e0d\u6d88\u8017\u5b57\u7b26\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u4e00\u4e2a\u5339\u914d\u53d1\u751f\u540e\uff0c\u5728\u6700\u540e\u4e00\u6b21\u5339\u914d\u4e4b\u540e\u7acb\u5373\u5f00\u59cb\u4e0b\u4e00\u6b21\u5339\u914d\u7684\u641c\u7d22\uff0c\u800c\u4e0d\u662f\u4ece\u5305\u542b\u9884\u67e5\u7684\u5b57\u7b26\u4e4b\u540e\u5f00\u59cb\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">(?!pattern) <\/td>
\n <td style="FONT-SIZE: 12px">\u8d1f\u5411\u9884\u67e5\uff0c\u5728\u4efb\u4f55\u4e0d\u5339\u914d pattern \u7684\u5b57\u7b26\u4e32\u5f00\u59cb\u5904\u5339\u914d\u67e5\u627e\u5b57\u7b26\u4e32\u3002\u8fd9\u662f\u4e00\u4e2a\u975e\u83b7\u53d6\u5339\u914d\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u8be5\u5339\u914d\u4e0d\u9700\u8981\u83b7\u53d6\u4f9b\u4ee5\u540e\u4f7f\u7528\u3002\u4f8b\u5982'Windows (?!95|98|NT|2000)' \u80fd\u5339\u914d &quot;Windows 3.1&quot; \u4e2d\u7684 &quot;Windows&quot;\uff0c\u4f46\u4e0d\u80fd\u5339\u914d &quot;Windows 2000&quot; \u4e2d\u7684 &quot;Windows&quot;\u3002\u9884\u67e5\u4e0d\u6d88\u8017\u5b57\u7b26\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u4e00\u4e2a\u5339\u914d\u53d1\u751f\u540e\uff0c\u5728\u6700\u540e\u4e00\u6b21\u5339\u914d\u4e4b\u540e\u7acb\u5373\u5f00\u59cb\u4e0b\u4e00\u6b21\u5339\u914d\u7684\u641c\u7d22\uff0c\u800c\u4e0d\u662f\u4ece\u5305\u542b\u9884\u67e5\u7684\u5b57\u7b26\u4e4b\u540e\u5f00\u59cb<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">x|y <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d x \u6216 y\u3002\u4f8b\u5982\uff0c'z|food' \u80fd\u5339\u914d &quot;z&quot; \u6216 &quot;food&quot;\u3002'(z|f)ood' \u5219\u5339\u914d &quot;zood&quot; \u6216 &quot;food&quot;\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">[xyz] <\/td>
\n <td style="FONT-SIZE: 12px">\u5b57\u7b26\u96c6\u5408\u3002\u5339\u914d\u6240\u5305\u542b\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\u3002\u4f8b\u5982\uff0c '[abc]' \u53ef\u4ee5\u5339\u914d &quot;plain&quot; \u4e2d\u7684 'a'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">[^xyz] <\/td>
\n <td style="FONT-SIZE: 12px">\u8d1f\u503c\u5b57\u7b26\u96c6\u5408\u3002\u5339\u914d\u672a\u5305\u542b\u7684\u4efb\u610f\u5b57\u7b26\u3002\u4f8b\u5982\uff0c '[^abc]' \u53ef\u4ee5\u5339\u914d &quot;plain&quot; \u4e2d\u7684'p'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">[a-z] <\/td>
\n <td style="FONT-SIZE: 12px">\u5b57\u7b26\u8303\u56f4\u3002\u5339\u914d\u6307\u5b9a\u8303\u56f4\u5185\u7684\u4efb\u610f\u5b57\u7b26\u3002\u4f8b\u5982\uff0c'[a-z]' \u53ef\u4ee5\u5339\u914d 'a' \u5230 'z' \u8303\u56f4\u5185\u7684\u4efb\u610f\u5c0f\u5199\u5b57\u6bcd\u5b57\u7b26\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">[^a-z] <\/td>
\n <td style="FONT-SIZE: 12px">\u8d1f\u503c\u5b57\u7b26\u8303\u56f4\u3002\u5339\u914d\u4efb\u4f55\u4e0d\u5728\u6307\u5b9a\u8303\u56f4\u5185\u7684\u4efb\u610f\u5b57\u7b26\u3002\u4f8b\u5982\uff0c'[^a-z]' \u53ef\u4ee5\u5339\u914d\u4efb\u4f55\u4e0d\u5728 'a' \u5230 'z' \u8303\u56f4\u5185\u7684\u4efb\u610f\u5b57\u7b26\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\b <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u4e00\u4e2a\u5355\u8bcd\u8fb9\u754c\uff0c\u4e5f\u5c31\u662f\u6307\u5355\u8bcd\u548c\u7a7a\u683c\u95f4\u7684\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c 'er\\b' \u53ef\u4ee5\u5339\u914d&quot;never&quot; \u4e2d\u7684 'er'\uff0c\u4f46\u4e0d\u80fd\u5339\u914d &quot;verb&quot; \u4e2d\u7684 'er'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\B <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u975e\u5355\u8bcd\u8fb9\u754c\u3002'er\\B' \u80fd\u5339\u914d &quot;verb&quot; \u4e2d\u7684 'er'\uff0c\u4f46\u4e0d\u80fd\u5339\u914d &quot;never&quot; \u4e2d\u7684 'er'\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\cx <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u7531 x \u6307\u660e\u7684\u63a7\u5236\u5b57\u7b26\u3002\u4f8b\u5982\uff0c \\cM \u5339\u914d\u4e00\u4e2a Control-M \u6216\u56de\u8f66\u7b26\u3002x \u7684\u503c\u5fc5\u987b\u4e3a A-Z \u6216 a-z \u4e4b\u4e00\u3002\u5426\u5219\uff0c\u5c06 c \u89c6\u4e3a\u4e00\u4e2a\u539f\u4e49\u7684 'c' \u5b57\u7b26\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\d <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u4e00\u4e2a\u6570\u5b57\u5b57\u7b26\u3002\u7b49\u4ef7\u4e8e [0-9]\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\D <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u4e00\u4e2a\u975e\u6570\u5b57\u5b57\u7b26\u3002\u7b49\u4ef7\u4e8e [^0-9]\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\f <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u4e00\u4e2a\u6362\u9875\u7b26\u3002\u7b49\u4ef7\u4e8e \\x0c \u548c \\cL\u3002<\/td>
\n <\/tr>
\n <tr bgcolor="#fafafa">
\n <td style="FONT-SIZE: 12px">\\n <\/td>
\n <td style="FONT-SIZE: 12px">\u5339\u914d\u4e00\u4e2a\u6362\u884c\u7b26\u3002\u7b49\u4ef7\u4e8e \\x0a \u548c \\cJ\u3002<\/td>
\n <\/tr>
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