{"id":1016,"date":"2015-03-27T17:07:37","date_gmt":"2015-03-27T09:07:37","guid":{"rendered":"http:\/\/www.daliane.com\/?p=1016"},"modified":"2015-03-27T17:07:37","modified_gmt":"2015-03-27T09:07:37","slug":"js_zheng_ze_biao_da_shi","status":"publish","type":"post","link":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/js_zheng_ze_biao_da_shi\/","title":{"rendered":"js \u6b63\u5219\u8868\u8fbe\u5f0f"},"content":{"rendered":"

\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u5305\u62ec\u7684\u5143\u7d20<\/strong><\/p>\n

1\u3001\u539f\u5b50\uff08\u666e\u901a\u5b57\u7b26\uff1aa-z A-Z 0-9 \u3001\u539f\u5b50\u8868\u3001 \u8f6c\u4e49\u5b57\u7b26\uff09<\/p>\n

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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong>1\u3001a-z A-Z _ 0-9\u00a0 \/\/\u6700\u5e38\u89c1\u7684\u5b57\u7b26<\/p>\n

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3\u3001[abcs] [^abd] \/\/\u7528\u65b9\u62ec\u53f7\u5305\u542b\u7684\u539f\u5b50\u8868\uff0c\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\uff0c\u539f\u5b50\u8868\u4e2d\u7684^\u4ee3\u8868\u6392\u9664\u6216\u76f8\u53cd\u5185\u5bb9<\/p>\n

4\u3001\u8f6c\u4e49\u5b57\u7b26<\/p>\n

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\n\\s\u00a0\u00a0 \u5305\u542b\u7a7a\u767d\u533a\u57df\u5982\u56de\u8f66\u3001\u6362\u884c\u3001\u5206\u9875\u7b49 [\\f\\n\\r]<\/p>\n

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\u5982\uff1a$str=”<a><c>”; $preg 01= \u2018\/<(.*)>\/U\u2019; \u548c $preg02 = \u2018\/<.*?>\/\u2019; \u7ed3\u679c\u90fd\u4e3a\uff1aa<\/p>\n

8\u3001$str = \u20182009-01-01\\2010\\01-01\u2019; $preg = \u2018\/2009(.*?)01\\\\1(01)(.*?)2010\\\\3(01)\\\\1(01)\/\u2019;<\/p>\n

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\n(?<=\u88ab\u67e5\u5355\u4f4d\u540d\u79f0).+?(?= \u7ecf\u6d4e\u6027\u8d28)
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\n(?<=\u7eb3\u7a0e\u4eba\u57fa\u672c\u60c5\u51b5).+?(?=\u4e8c)<\/p>\n

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\n.\u53c2\u6570 \u6b32\u88ab\u66ff\u6362\u6587\u672c, \u6587\u672c\u578b
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3\u3001’]’ \u5b57\u7b26\u5982\u679c\u4e0d\u662f\u7b2c\u4e00\u9879\uff0c\u5219\u5c06\u7ed3\u675f\u4e00\u4e2a\u5217\u8868\u3002\u8981\u5728\u5217\u8868\u4e2d\u5339\u914d ‘]’ \u5b57\u7b26\uff0c\u8bf7\u5c06\u5176\u653e\u5728\u7b2c\u4e00\u9879\uff0c\u7d27\u8ddf\u5728\u5f00\u59cb\u7684 ‘[‘ \u540e\u9762\u3002<\/p>\n

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\n[\\-]
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\n[-a-z]
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\n[!–]
\n[!-~]
\n\u540c\u6837\uff0c\u901a\u8fc7\u5728\u5217\u8868\u5f00\u59cb\u5904\u653e\u7f6e\u4e00\u4e2a\u63d2\u5165\u7b26(^)\uff0c\u5c31\u53ef\u4ee5\u67e5\u627e\u6240\u6709\u4e0d\u5728\u5217\u8868\u6216\u8303\u56f4\u4e2d\u7684\u5b57\u7b26\u3002\u5982\u679c\u8be5\u63d2\u5165\u7b26\u51fa\u73b0\u5728\u5217\u8868\u7684\u5176\u4ed6\u4f4d\u7f6e\uff0c\u5219\u5339\u914d\u5176\u672c\u8eab\uff0c\u6ca1\u6709\u4efb\u4f55\u7279\u6b8a\u542b\u4e49
\n\u4f60\u53ef\u80fd\u8ba4\u4e3a\u4e0b\u9762\u7684 JScript \u548c VBScript \u8868\u8fbe\u5f0f\u5c06\u5339\u914d\u4f4d\u4e8e\u4e00\u884c\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u4f4d\u7f6e\u4e14\u540e\u8ddf\u4e00\u4e2a\u6216\u4e24\u4e2a\u6570\u5b57\u7684 ‘Chapter’ \u6216 ‘Section’\uff1a\/^Chapter|Section [1-9][0-9]{0,1}$\/
\n“^Chapter|Section [1-9][0-9]{0,1}$”\u4e0d\u5e78\u7684\u662f\uff0c\u771f\u6b63\u7684\u60c5\u51b5\u662f\u4e0a\u9762\u6240\u793a\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u8981\u4e48\u5339\u914d\u4f4d\u4e8e\u4e00\u884c\u5f00\u59cb\u5904\u7684\u5355\u8bcd ‘Chapter’\uff0c\u8981\u4e48\u5339\u914d\u4e00\u884c\u7ed3\u675f\u5904\u7684\u540e\u8ddf\u4efb\u4f55\u6570\u5b57\u7684 ‘Section’\u3002\u5982\u679c\u8f93\u5165\u5b57\u7b26\u4e32\u4e3a ‘Chapter 22’\uff0c\u4e0a\u9762\u7684\u8868\u8fbe\u5f0f\u5c06\u53ea\u5339\u914d\u5355\u8bcd ‘Chapter’\u3002\u5982\u679c\u8f93\u5165\u5b57\u7b26\u4e32\u4e3a ‘Section 22’\uff0c\u5219\u8be5\u8868\u8fbe\u5f0f\u5c06\u5339\u914d ‘Section 22’\u3002\u4f46\u8fd9\u79cd\u7ed3\u679c\u4e0d\u662f\u6211\u4eec\u6b64\u5904\u7684\u76ee\u7684\uff0c\u56e0\u6b64\u5fc5\u987b\u6709\u4e00\u79cd\u529e\u6cd5\u6765\u4f7f\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u4e8e\u6240\u8981\u505a\u7684\u66f4\u6613\u4e8e\u54cd\u5e94\uff0c\u800c\u4e14\u786e\u5b9e\u4e5f\u6709\u8fd9\u79cd\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528\u5706\u62ec\u53f7\u6765\u9650\u5236\u9009\u62e9\u7684\u8303\u56f4\uff0c\u4e5f\u5c31\u662f\u8bf4\u660e\u786e\u8be5\u9009\u62e9\u53ea\u9002\u7528\u4e8e\u8fd9\u4e24\u4e2a\u5355\u8bcd ‘Chapter’ \u548c ‘Section’\u3002\u4e0d\u8fc7\uff0c\u5706\u62ec\u53f7\u540c\u6837\u4e5f\u662f\u96be\u5904\u7406\u7684\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e5f\u7528\u6765\u521b\u5efa\u5b50\u8868\u8fbe\u5f0f\uff0c\u6709\u4e9b\u5185\u5bb9\u5c06\u5728\u540e\u9762\u5173\u4e8e\u5b50\u8868\u8fbe\u5f0f\u7684\u90e8\u5206\u4ecb\u7ecd\u3002\u901a\u8fc7\u91c7\u7528\u4e0a\u9762\u6240\u793a\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5e76\u5728\u9002\u5f53\u4f4d\u7f6e\u6dfb\u52a0\u5706\u62ec\u53f7\uff0c\u5c31\u53ef\u4ee5\u4f7f\u8be5\u6b63\u5219\u8868\u8fbe\u5f0f\u65e2\u53ef\u4ee5\u5339\u914d ‘Chapter 1’\uff0c\u4e5f\u53ef\u4ee5\u5339\u914d ‘Section 3’\u3002\u4e0b\u9762\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\u5706\u62ec\u53f7\u5c06 ‘Chapter’ \u548c ‘Section’ \u7ec4\u6210\u4e00\u7ec4\uff0c\u6240\u4ee5\u8be5\u8868\u8fbe\u5f0f\u624d\u80fd\u6b63\u786e\u5de5\u4f5c\u3002\u5bf9 JScript \u4e3a\uff1a\/^(Chapter|Section) [1-9][0-9]{0,1}$\/\u5bf9 VBScript \u4e3a\uff1a”^(Chapter|Section) [1-9][0-9]{0,1}$”
\n\u53ef\u4ee5\u5728\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u5706\u62ec\u53f7\u5185\u90e8\u7684\u524d\u9762\u4f7f\u7528 ‘?:’\u6765\u9632\u6b62\u5b58\u50a8\u8be5\u5339\u914d\u4f9b\u4eca\u540e\u4f7f\u7528\u3002\u5bf9\u4e0a\u9762\u6240\u793a\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4e0b\u8ff0\u4fee\u6539\u63d0\u4f9b\u4e86\u514d\u9664\u5b50\u5339\u914d\u5b58\u50a8\u7684\u76f8\u540c\u529f\u80fd\u3002\u5bf9 JScript\uff1a\/^(?:Chapter|Section) [1-9][0-9]{0,1}$\/\u5bf9 VBScript\uff1a”^(?:Chapter|Section) [1-9][0-9]{0,1}$”
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\n\u975e\u6355\u83b7\u7ec4 (?:xxx)
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