锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#x4E9A;&#x6D32;&#x7CBE;&#x54C1;&#x7B2C;&#x4E00;&#x56FD;&#x4EA7;&#x7EFC;&#x5408;&#x4E9A;&#x41;&#x56;&#x2C;&#x4E9A;&#x6D32;&#x4E00;&#x533A;&#x4E2D;&#x6587;&#x5B57;&#x5E55;&#x5728;&#x7EBF;&#x7535;&#x5F71;&#x7F51;&#x2C;&#x4E9A;&#x6D32;&#x41;&#x76;&#x719F;&#x5987;&#x9AD8;&#x6F6E;&#x33;&#x30;&#x70;</title><link>http://m.tkk7.com/daiyinchuan/articles/78740.html</link><dc:creator>鏈夌惔閫嶉仴</dc:creator><author>鏈夌惔閫嶉仴</author><pubDate>Thu, 02 Nov 2006 10:00:00 GMT</pubDate><guid>http://m.tkk7.com/daiyinchuan/articles/78740.html</guid><wfw:comment>http://m.tkk7.com/daiyinchuan/comments/78740.html</wfw:comment><comments>http://m.tkk7.com/daiyinchuan/articles/78740.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.tkk7.com/daiyinchuan/comments/commentRss/78740.html</wfw:commentRss><trackback:ping>http://m.tkk7.com/daiyinchuan/services/trackbacks/78740.html</trackback:ping><description><![CDATA[
		<p>寮曡█<br />聽聽聽 姝ｅ垯琛ㄨ揪寮忥紙regular expression錛夋弿榪頒簡涓�縐嶅瓧絎︿覆鍖歸厤鐨勬ā寮忥紝鍙互鐢ㄦ潵錛氾紙1錛夋鏌ヤ竴涓覆涓槸鍚﹀惈鏈夌鍚堟煇涓鍒欑殑瀛愪覆錛屽茍涓斿彲浠ュ緱鍒拌繖涓瓙涓詫紱錛?錛夋牴鎹尮閰嶈鍒欏瀛楃涓茶繘琛岀伒媧葷殑鏇挎崲鎿嶄綔銆?/p>
		<p>聽聽聽 姝ｅ垯琛ㄨ揪寮忓涔犺搗鏉ュ叾瀹炴槸寰堢畝鍗曠殑錛屼笉澶氱殑鍑犱釜杈冧負鎶借薄鐨勬蹇典篃寰堝鏄撶悊瑙ｃ�備箣鎵�浠ュ緢澶氫漢鎰熻姝ｅ垯琛ㄨ揪寮忔瘮杈冨鏉傦紝涓�鏂歸潰鏄洜涓哄ぇ澶氭暟鐨勬枃妗ｆ病鏈夊仛鍒扮敱嫻呭叆娣卞湴璁茶В錛屾蹇典笂娌℃湁娉ㄦ剰鍏堝悗欏哄簭錛岀粰璇昏�呯殑鐞嗚В甯︽潵鍥伴毦錛涘彟涓�鏂歸潰錛屽悇縐嶅紩鎿庤嚜甯︾殑鏂囨。涓�鑸兘瑕佷粙緇嶅畠鐗規(guī)湁鐨勫姛鑳斤紝鐒惰�岃繖閮ㄥ垎鐗規(guī)湁鐨勫姛鑳藉茍涓嶆槸鎴戜滑棣栧厛瑕佺悊瑙ｇ殑銆?/p>
		<p>聽聽聽 鏂囩珷涓殑姣忎竴涓婦渚嬶紝閮藉彲浠ョ偣鍑昏繘鍏ュ埌嫻嬭瘯欏甸潰榪涜嫻嬭瘯銆傞棽璇濆皯璇達紝寮�濮嬨�?/p>
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		<p>1. 姝ｅ垯琛ㄨ揪寮忚鍒?br />1.1 鏅�氬瓧絎?br />聽聽聽 瀛楁瘝銆佹暟瀛椼�佹眽瀛椼�佷笅鍒掔嚎銆佷互鍙婂悗杈圭珷鑺備腑娌℃湁鐗規(guī)畩瀹氫箟鐨勬爣鐐圭鍙鳳紝閮芥槸"鏅�氬瓧絎?銆傝〃杈懼紡涓殑鏅�氬瓧絎︼紝鍦ㄥ尮閰嶄竴涓瓧絎︿覆鐨勬椂鍊欙紝鍖歸厤涓庝箣鐩稿悓鐨勪竴涓瓧絎︺�?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "c"錛屽湪鍖歸厤瀛楃涓?"abcde" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?c"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬2錛岀粨鏉熶簬3銆傦紙娉細涓嬫爣浠?寮�濮嬭繕鏄粠1寮�濮嬶紝鍥犲綋鍓嶇紪紼嬭璦�鐨勪笉鍚岃�屽彲鑳戒笉鍚岋級</p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "bcd"錛屽湪鍖歸厤瀛楃涓?"abcde" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?bcd"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬1錛岀粨鏉熶簬4銆?/p>
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		<p>1.2 綆�鍗曠殑杞箟瀛楃<br />聽聽聽 涓�浜涗笉渚夸功鍐欑殑瀛楃錛岄噰鐢ㄥ湪鍓嶉潰鍔?"\" 鐨勬柟娉曘�傝繖浜涘瓧絎﹀叾瀹炴垜浠兘宸茬粡鐔熺煡浜嗐�?/p>
		<p>琛ㄨ揪寮?br />聽鍙尮閰?br />聽<br />\r, \n<br />聽浠ｈ〃鍥炶濺鍜屾崲琛岀<br />聽<br />\t<br />聽鍒惰〃絎?br />聽<br />\\<br />聽浠ｈ〃 "\" 鏈韓<br />聽</p>
		<p>聽聽聽 榪樻湁鍏朵粬涓�浜涘湪鍚庤竟绔犺妭涓湁鐗規(guī)畩鐢ㄥ鐨勬爣鐐圭鍙鳳紝鍦ㄥ墠闈㈠姞 "\" 鍚庯紝灝變唬琛ㄨ絎﹀彿鏈韓銆傛瘮濡傦細^, $ 閮芥湁鐗規(guī)畩鎰忎箟錛屽鏋滆鎯沖尮閰嶅瓧絎︿覆涓?"^" 鍜?"$" 瀛楃錛屽垯琛ㄨ揪寮忓氨闇�瑕佸啓鎴?"\^" 鍜?"\$"銆?/p>
		<p>琛ㄨ揪寮?br />聽鍙尮閰?br />聽<br />\^<br />聽鍖歸厤 ^ 絎﹀彿鏈韓<br />聽<br />\$<br />聽鍖歸厤 $ 絎﹀彿鏈韓<br />聽<br />\.<br />聽鍖歸厤灝忔暟鐐癸紙.錛夋湰韜?br />聽</p>
		<p>聽聽聽 榪欎簺杞箟瀛楃鐨勫尮閰嶆柟娉曚笌 "鏅�氬瓧絎? 鏄被浼肩殑銆備篃鏄尮閰嶄笌涔嬬浉鍚岀殑涓�涓瓧絎︺�?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "\$d"錛屽湪鍖歸厤瀛楃涓?"abc$de" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?$d"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬3錛岀粨鏉熶簬5銆?/p>
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		<p>1.3 鑳藉涓?'澶氱瀛楃' 鍖歸厤鐨勮〃杈懼紡<br />聽聽聽 姝ｅ垯琛ㄨ揪寮忎腑鐨勪竴浜涜〃紺烘柟娉曪紝鍙互鍖歸厤 '澶氱瀛楃' 鍏朵腑鐨勪換鎰忎竴涓瓧絎︺�傛瘮濡傦紝琛ㄨ揪寮?"\d" 鍙互鍖歸厤浠繪剰涓�涓暟瀛椼�傝櫧鐒跺彲浠ュ尮閰嶅叾涓換鎰忓瓧絎︼紝浣嗘槸鍙兘鏄竴涓紝涓嶆槸澶氫釜銆傝繖灝卞ソ姣旂帺鎵戝厠鐗屾椂鍊欙紝澶у皬鐜嬪彲浠ヤ唬鏇夸換鎰忎竴寮犵墝錛屼絾鏄彧鑳戒唬鏇夸竴寮犵墝銆?/p>
		<p>琛ㄨ揪寮?br />聽鍙尮閰?br />聽<br />\d<br />聽浠繪剰涓�涓暟瀛楋紝0~9 涓殑浠繪剰涓�涓?br />聽<br />\w<br />聽浠繪剰涓�涓瓧姣嶆垨鏁板瓧鎴栦笅鍒掔嚎錛屼篃灝辨槸 A~Z,a~z,0~9,_ 涓換鎰忎竴涓?br />聽<br />\s<br />聽鍖呮嫭絀烘牸銆佸埗琛ㄧ銆佹崲欏電絳夌┖鐧藉瓧絎︾殑鍏朵腑浠繪剰涓�涓?br />聽<br />.<br />聽灝忔暟鐐瑰彲浠ュ尮閰嶉櫎浜嗘崲琛岀錛圽n錛変互澶栫殑浠繪剰涓�涓瓧絎?br />聽</p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "\d\d"錛屽湪鍖歸厤 "abc123" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"12"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬3錛岀粨鏉熶簬5銆?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "a.\d"錛屽湪鍖歸厤 "aaa100" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"aa1"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬1錛岀粨鏉熶簬4銆?/p>
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		<p>1.4 鑷畾涔夎兘澶熷尮閰?'澶氱瀛楃' 鐨勮〃杈懼紡<br />聽聽聽 浣跨敤鏂規(guī)嫭鍙?[ ] 鍖呭惈涓�緋誨垪瀛楃錛岃兘澶熷尮閰嶅叾涓換鎰忎竴涓瓧絎︺�傜敤 [^ ] 鍖呭惈涓�緋誨垪瀛楃錛屽垯鑳藉鍖歸厤鍏朵腑瀛楃涔嬪鐨勪換鎰忎竴涓瓧絎︺�傚悓鏍風殑閬撶悊錛岃櫧鐒跺彲浠ュ尮閰嶅叾涓換鎰忎竴涓紝浣嗘槸鍙兘鏄竴涓紝涓嶆槸澶氫釜銆?/p>
		<p>琛ㄨ揪寮?br />聽鍙尮閰?br />聽<br />[ab5@]<br />聽鍖歸厤 "a" 鎴?"b" 鎴?"5" 鎴?"@"<br />聽<br />[^abc]<br />聽鍖歸厤 "a","b","c" 涔嬪鐨勪換鎰忎竴涓瓧絎?br />聽<br />[f-k]<br />聽鍖歸厤 "f"~"k" 涔嬮棿鐨勪換鎰忎竴涓瓧姣?br />聽<br />[^A-F0-3]<br />聽鍖歸厤 "A"~"F","0"~"3" 涔嬪鐨勪換鎰忎竴涓瓧絎?br />聽</p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "[bcd][bcd]" 鍖歸厤 "abc123" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"bc"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬1錛岀粨鏉熶簬3銆?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "[^abc]" 鍖歸厤 "abc123" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"1"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬3錛岀粨鏉熶簬4銆?/p>
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		<p>1.5 淇グ鍖歸厤嬈℃暟鐨勭壒孌婄鍙?br />聽聽聽 鍓嶉潰绔犺妭涓鍒扮殑琛ㄨ揪寮忥紝鏃犺鏄彧鑳藉尮閰嶄竴縐嶅瓧絎︾殑琛ㄨ揪寮忥紝榪樻槸鍙互鍖歸厤澶氱瀛楃鍏朵腑浠繪剰涓�涓殑琛ㄨ揪寮忥紝閮藉彧鑳藉尮閰嶄竴嬈°�傚鏋滀嬌鐢ㄨ〃杈懼紡鍐嶅姞涓婁慨楗板尮閰嶆鏁扮殑鐗規(guī)畩絎﹀彿錛岄偅涔堜笉鐢ㄩ噸澶嶄功鍐欒〃杈懼紡灝卞彲浠ラ噸澶嶅尮閰嶃�?/p>
		<p>聽聽聽 浣跨敤鏂規(guī)硶鏄細"嬈℃暟淇グ"鏀懼湪"琚慨楗扮殑琛ㄨ揪寮?鍚庤竟銆傛瘮濡傦細"[bcd][bcd]" 鍙互鍐欐垚 "[bcd]{2}"銆?/p>
		<p>琛ㄨ揪寮?br />聽浣滅敤<br />聽<br />{n}<br />聽琛ㄨ揪寮忛噸澶峮嬈★紝姣斿錛?\w{2}" 鐩稿綋浜?"\w\w"錛?a{5}" 鐩稿綋浜?"aaaaa"<br />聽<br />{m,n}<br />聽琛ㄨ揪寮忚嚦灝戦噸澶峬嬈★紝鏈�澶氶噸澶峮嬈★紝姣斿錛?ba{1,3}"鍙互鍖歸厤 "ba"鎴?baa"鎴?baaa"<br />聽<br />{m,}<br />聽琛ㄨ揪寮忚嚦灝戦噸澶峬嬈★紝姣斿錛?\w\d{2,}"鍙互鍖歸厤 "a12","_456","M12344"...<br />聽<br />?<br />聽鍖歸厤琛ㄨ揪寮?嬈℃垨鑰?嬈★紝鐩稿綋浜?{0,1}錛屾瘮濡傦細"a[cd]?"鍙互鍖歸厤 "a","ac","ad"<br />聽<br />+<br />聽琛ㄨ揪寮忚嚦灝戝嚭鐜?嬈★紝鐩稿綋浜?{1,}錛屾瘮濡傦細"a+b"鍙互鍖歸厤 "ab","aab","aaab"...<br />聽<br />*<br />聽琛ㄨ揪寮忎笉鍑虹幇鎴栧嚭鐜頒換鎰忔錛岀浉褰撲簬 {0,}錛屾瘮濡傦細"\^*b"鍙互鍖歸厤 "b","^^^b"...<br />聽</p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "\d+\.?\d*" 鍦ㄥ尮閰?"It costs $12.5" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"12.5"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬10錛岀粨鏉熶簬14銆?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "go{2,8}gle" 鍦ㄥ尮閰?"Ads by goooooogle" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"goooooogle"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬7錛岀粨鏉熶簬17銆?/p>
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		<p>1.6 鍏朵粬涓�浜涗唬琛ㄦ娊璞℃剰涔夌殑鐗規(guī)畩絎﹀彿<br />聽聽聽 涓�浜涚鍙峰湪琛ㄨ揪寮忎腑浠ｈ〃鎶借薄鐨勭壒孌婃剰涔夛細</p>
		<p>琛ㄨ揪寮?br />聽浣滅敤<br />聽<br />^<br />聽涓庡瓧絎︿覆寮�濮嬬殑鍦版柟鍖歸厤錛屼笉鍖歸厤浠諱綍瀛楃<br />聽<br />$<br />聽涓庡瓧絎︿覆緇撴潫鐨勫湴鏂瑰尮閰嶏紝涓嶅尮閰嶄換浣曞瓧絎?br />聽<br />\b<br />聽鍖歸厤涓�涓崟璇嶈竟鐣岋紝涔熷氨鏄崟璇嶅拰絀烘牸涔嬮棿鐨勪綅緗紝涓嶅尮閰嶄換浣曞瓧絎?br />聽</p>
		<p>聽聽聽 榪涗竴姝ョ殑鏂囧瓧璇存槑浠嶇劧姣旇緝鎶借薄錛屽洜姝わ紝涓句緥甯姪澶у鐞嗚В銆?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "^aaa" 鍦ㄥ尮閰?"xxx aaa xxx" 鏃訛紝鍖歸厤緇撴灉鏄細澶辮觸銆傚洜涓?"^" 瑕佹眰涓庡瓧絎︿覆寮�濮嬬殑鍦版柟鍖歸厤錛屽洜姝わ紝鍙湁褰?"aaa" 浣嶄簬瀛楃涓茬殑寮�澶寸殑鏃跺�欙紝"^aaa" 鎵嶈兘鍖歸厤錛屾瘮濡傦細"aaa xxx xxx"銆?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "aaa$" 鍦ㄥ尮閰?"xxx aaa xxx" 鏃訛紝鍖歸厤緇撴灉鏄細澶辮觸銆傚洜涓?"$" 瑕佹眰涓庡瓧絎︿覆緇撴潫鐨勫湴鏂瑰尮閰嶏紝鍥犳錛屽彧鏈夊綋 "aaa" 浣嶄簬瀛楃涓茬殑緇撳熬鐨勬椂鍊欙紝"aaa$" 鎵嶈兘鍖歸厤錛屾瘮濡傦細"xxx xxx aaa"銆?/p>
		<p>聽聽聽 涓句緥3錛氳〃杈懼紡 <a href="mailto:&quot;.\b.&quot; 鍦ㄥ尮閰?&quot;@@@abc">".\b." 鍦ㄥ尮閰?"@@@abc</a>" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?@a"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬2錛岀粨鏉熶簬4銆?br />聽聽聽 榪涗竴姝ヨ鏄庯細"\b" 涓?"^" 鍜?"$" 綾諱技錛屾湰韜笉鍖歸厤浠諱綍瀛楃錛屼絾鏄畠瑕佹眰瀹冨湪鍖歸厤緇撴灉涓墍澶勪綅緗殑宸﹀彸涓よ竟錛屽叾涓竴杈規(guī)槸 "\w" 鑼冨洿錛屽彟涓�杈規(guī)槸 闈?\w" 鐨勮寖鍥淬�?/p>
		<p>聽聽聽 涓句緥4錛氳〃杈懼紡 "\bend\b" 鍦ㄥ尮閰?"weekend,endfor,end" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?end"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬15錛岀粨鏉熶簬18銆?/p>
		<p>聽聽聽 涓�浜涚鍙峰彲浠ュ獎鍝嶈〃杈懼紡鍐呴儴鐨勫瓙琛ㄨ揪寮忎箣闂寸殑鍏崇郴錛?/p>
		<p>琛ㄨ揪寮?br />聽浣滅敤<br />聽<br />|<br />聽宸﹀彸涓よ竟琛ㄨ揪寮忎箣闂?"鎴? 鍏崇郴錛屽尮閰嶅乏杈規(guī)垨鑰呭彸杈?br />聽<br />( )<br />聽(1). 鍦ㄨ淇グ鍖歸厤嬈℃暟鐨勬椂鍊欙紝鎷彿涓殑琛ㄨ揪寮忓彲浠ヤ綔涓烘暣浣撹淇グ<br />(2). 鍙栧尮閰嶇粨鏋滅殑鏃跺�欙紝鎷彿涓殑琛ㄨ揪寮忓尮閰嶅埌鐨勫唴瀹瑰彲浠ヨ鍗曠嫭寰楀埌<br />聽</p>
		<p>聽聽聽 涓句緥5錛氳〃杈懼紡 "Tom|Jack" 鍦ㄥ尮閰嶅瓧絎︿覆 "I'm Tom, he is Jack" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛?Tom"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬4錛岀粨鏉熶簬7銆傚尮閰嶄笅涓�涓椂錛屽尮閰嶇粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"Jack"錛涘尮閰嶅埌鐨勪綅緗椂錛氬紑濮嬩簬15錛岀粨鏉熶簬19銆?/p>
		<p>聽聽聽 涓句緥6錛氳〃杈懼紡 "(go\s*)+" 鍦ㄥ尮閰?"Let's go go go!" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鍐呭鏄細"go go go"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬6錛岀粨鏉熶簬14銆?/p>
		<p>聽聽聽 涓句緥7錛氳〃杈懼紡 "錕?\d+\.?\d*)" 鍦ㄥ尮閰?"錛?0.9,錕?0.5" 鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄細"錕?0.5"錛涘尮閰嶅埌鐨勪綅緗槸錛氬紑濮嬩簬6錛岀粨鏉熶簬10銆傚崟鐙幏鍙栨嫭鍙瘋寖鍥村尮閰嶅埌鐨勫唴瀹規(guī)槸錛?20.5"銆?/p>
		<p>
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		<p>2. 姝ｅ垯琛ㄨ揪寮忎腑鐨勪竴浜涢珮綰ц鍒?br />2.1 鍖歸厤嬈℃暟涓殑璐┆涓庨潪璐┆<br />聽聽聽 鍦ㄤ嬌鐢ㄤ慨楗板尮閰嶆鏁扮殑鐗規(guī)畩絎﹀彿鏃訛紝鏈夊嚑縐嶈〃紺烘柟娉曞彲浠ヤ嬌鍚屼竴涓〃杈懼紡鑳藉鍖歸厤涓嶅悓鐨勬鏁幫紝姣斿錛?{m,n}", "{m,}", "?", "*", "+"錛屽叿浣撳尮閰嶇殑嬈℃暟闅忚鍖歸厤鐨勫瓧絎︿覆鑰屽畾銆傝繖縐嶉噸澶嶅尮閰嶄笉瀹氭鏁扮殑琛ㄨ揪寮忓湪鍖歸厤榪囩▼涓紝鎬繪槸灝藉彲鑳藉鐨勫尮閰嶃�傛瘮濡傦紝閽堝鏂囨湰 "dxxxdxxxd"錛屼婦渚嬪涓嬶細</p>
		<p>琛ㄨ揪寮?br />聽鍖歸厤緇撴灉<br />聽<br />(d)(\w+)<br />聽"\w+" 灝嗗尮閰嶇涓�涓?"d" 涔嬪悗鐨勬墍鏈夊瓧絎?"xxxdxxxd"<br />聽<br />(d)(\w+)(d)<br />聽"\w+" 灝嗗尮閰嶇涓�涓?"d" 鍜屾渶鍚庝竴涓?"d" 涔嬮棿鐨勬墍鏈夊瓧絎?"xxxdxxx"銆傝櫧鐒?"\w+" 涔熻兘澶熷尮閰嶄笂鏈�鍚庝竴涓?"d"錛屼絾鏄負浜嗕嬌鏁翠釜琛ㄨ揪寮忓尮閰嶆垚鍔燂紝"\w+" 鍙互 "璁╁嚭" 瀹冩湰鏉ヨ兘澶熷尮閰嶇殑鏈�鍚庝竴涓?"d"<br />聽</p>
		<p>聽聽聽 鐢辨鍙錛?\w+" 鍦ㄥ尮閰嶇殑鏃跺�欙紝鎬繪槸灝藉彲鑳藉鐨勫尮閰嶇鍚堝畠瑙勫垯鐨勫瓧絎︺�傝櫧鐒剁浜屼釜涓句緥涓紝瀹冩病鏈夊尮閰嶆渶鍚庝竴涓?"d"錛屼絾閭ｄ篃鏄負浜嗚鏁翠釜琛ㄨ揪寮忚兘澶熷尮閰嶆垚鍔熴�傚悓鐞嗭紝甯?"*" 鍜?"{m,n}" 鐨勮〃杈懼紡閮芥槸灝藉彲鑳藉湴澶氬尮閰嶏紝甯?"?" 鐨勮〃杈懼紡鍦ㄥ彲鍖歸厤鍙笉鍖歸厤鐨勬椂鍊欙紝涔熸槸灝藉彲鑳界殑 "瑕佸尮閰?銆傝繖 縐嶅尮閰嶅師鍒欏氨鍙綔 "璐┆" 妯″紡 銆?/p>
		<p>聽聽聽 闈炶椽濠ā寮忥細</p>
		<p>聽聽聽 鍦ㄤ慨楗板尮閰嶆鏁扮殑鐗規(guī)畩絎﹀彿鍚庡啀鍔犱笂涓�涓?"?" 鍙鳳紝鍒欏彲浠ヤ嬌鍖歸厤嬈℃暟涓嶅畾鐨勮〃杈懼紡灝藉彲鑳藉皯鐨勫尮閰嶏紝浣垮彲鍖歸厤鍙笉鍖歸厤鐨勮〃杈懼紡錛屽敖鍙兘鐨?"涓嶅尮閰?銆傝繖縐嶅尮閰嶅師鍒欏彨浣?"闈炶椽濠? 妯″紡錛屼篃鍙綔 "鍕夊己" 妯″紡銆傚鏋滃皯鍖歸厤灝變細瀵艱嚧鏁翠釜琛ㄨ揪寮忓尮閰嶅け璐ョ殑鏃跺�欙紝涓庤椽濠ā寮忕被浼鹼紝闈炶椽濠ā寮忎細鏈�灝忛檺搴︾殑鍐嶅尮閰嶄竴浜涳紝浠ヤ嬌鏁翠釜琛ㄨ揪寮忓尮閰嶆垚鍔熴�備婦渚嬪涓嬶紝閽堝鏂囨湰 "dxxxdxxxd" 涓句緥錛?/p>
		<p>琛ㄨ揪寮?br />聽鍖歸厤緇撴灉<br />聽<br />(d)(\w+?)<br />聽"\w+?" 灝嗗敖鍙兘灝戠殑鍖歸厤絎竴涓?"d" 涔嬪悗鐨勫瓧絎︼紝緇撴灉鏄細"\w+?" 鍙尮閰嶄簡涓�涓?"x"<br />聽<br />(d)(\w+?)(d)<br />聽涓轟簡璁╂暣涓〃杈懼紡鍖歸厤鎴愬姛錛?\w+?" 涓嶅緱涓嶅尮閰?"xxx" 鎵嶅彲浠ヨ鍚庤竟鐨?"d" 鍖歸厤錛屼粠鑰屼嬌鏁翠釜琛ㄨ揪寮忓尮閰嶆垚鍔熴�傚洜姝わ紝緇撴灉鏄細"\w+?" 鍖歸厤 "xxx"<br />聽</p>
		<p>聽聽聽 鏇村鐨勬儏鍐碉紝涓句緥濡備笅錛?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "&lt;td&gt;(.*)&lt;/td&gt;" 涓庡瓧絎︿覆 "&lt;td&gt;&lt;p&gt;aa&lt;/p&gt;&lt;/td&gt; &lt;td&gt;&lt;p&gt;bb&lt;/p&gt;&lt;/td&gt;" 鍖歸厤鏃訛紝鍖歸厤鐨勭粨鏋滄槸錛氭垚鍔燂紱鍖歸厤鍒扮殑鍐呭鏄?"&lt;td&gt;&lt;p&gt;aa&lt;/p&gt;&lt;/td&gt; &lt;td&gt;&lt;p&gt;bb&lt;/p&gt;&lt;/td&gt;" 鏁翠釜瀛楃涓詫紝 琛ㄨ揪寮忎腑鐨?"&lt;/td&gt;" 灝嗕笌瀛楃涓蹭腑鏈�鍚庝竴涓?"&lt;/td&gt;" 鍖歸厤銆?</p>
		<p>聽聽聽 涓句緥2錛氱浉姣斾箣涓嬶紝琛ㄨ揪寮?"&lt;td&gt;(.*?)&lt;/td&gt;" 鍖歸厤涓句緥1涓悓鏍風殑瀛楃涓叉椂錛屽皢鍙緱鍒?"&lt;td&gt;&lt;p&gt;aa&lt;/p&gt;&lt;/td&gt;"錛?鍐嶆鍖歸厤涓嬩竴涓椂錛屽彲浠ュ緱鍒扮浜屼釜 "&lt;td&gt;&lt;p&gt;bb&lt;/p&gt;&lt;/td&gt;"銆?/p>
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		<p>2.2 鍙嶅悜寮曠敤 \1, \2...<br />聽聽聽 琛ㄨ揪寮忓湪鍖歸厤鏃訛紝琛ㄨ揪寮忓紩鎿庝細灝嗗皬鎷彿 "( )" 鍖呭惈鐨勮〃杈懼紡鎵�鍖歸厤鍒扮殑瀛楃涓茶褰曚笅鏉ャ�傚湪鑾峰彇鍖歸厤緇撴灉鐨勬椂鍊欙紝灝忔嫭鍙峰寘鍚殑琛ㄨ揪寮忔墍鍖歸厤鍒扮殑瀛楃涓插彲浠ュ崟鐙幏鍙栥�傝繖涓�鐐癸紝鍦ㄥ墠闈㈢殑涓句緥涓紝宸茬粡澶氭灞曠ず浜嗐�傚湪瀹為檯搴旂敤鍦哄悎涓紝褰撶敤鏌愮杈圭晫鏉ユ煡鎵撅紝鑰屾墍瑕佽幏鍙栫殑鍐呭鍙堜笉鍖呭惈杈圭晫鏃訛紝蹇呴』浣跨敤灝忔嫭鍙鋒潵鎸囧畾鎵�瑕佺殑鑼冨洿銆傛瘮濡傚墠闈㈢殑 "&lt;td&gt;(.*?)&lt;/td&gt;"銆?/p>
		<p>聽聽聽 鍏跺疄錛?灝忔嫭鍙峰寘鍚殑琛ㄨ揪寮忔墍鍖歸厤鍒扮殑瀛楃涓? 涓嶄粎鏄湪鍖歸厤緇撴潫鍚庢墠鍙互浣跨敤錛屽湪鍖歸厤榪囩▼涓篃鍙互浣跨敤銆傝〃杈懼紡鍚庤竟鐨勯儴鍒嗭紝鍙互寮曠敤鍓嶉潰 "鎷彿鍐呯殑瀛愬尮閰嶅凡緇忓尮閰嶅埌鐨勫瓧絎︿覆"銆傚紩鐢ㄦ柟娉曟槸 "\" 鍔犱笂涓�涓暟瀛椼�?\1" 寮曠敤絎?瀵規(guī)嫭鍙峰唴鍖歸厤鍒扮殑瀛楃涓詫紝"\2" 寮曠敤絎?瀵規(guī)嫭鍙峰唴鍖歸厤鍒扮殑瀛楃涓測�︹�︿互姝ょ被鎺紝濡傛灉涓�瀵規(guī)嫭鍙峰唴鍖呭惈鍙︿竴瀵規(guī)嫭鍙鳳紝鍒欏灞傜殑鎷彿鍏堟帓搴忓彿銆傛崲鍙ヨ瘽璇達紝鍝竴瀵圭殑宸︽嫭鍙?"(" 鍦ㄥ墠錛岄偅榪欎竴瀵瑰氨鍏堟帓搴忓彿銆?/p>
		<p>聽聽聽 涓句緥濡備笅錛?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "('|")(.*?)(\1)" 鍦ㄥ尮閰?" 'Hello', "World" " 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸錛? 'Hello' "銆傚啀嬈″尮閰嶄笅涓�涓椂錛屽彲浠ュ尮閰嶅埌 " "World" "銆?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "(\w)\1{4,}" 鍦ㄥ尮閰?"aa bbbb abcdefg ccccc 111121111 999999999" 鏃訛紝鍖歸厤緇撴灉鏄細鎴愬姛錛涘尮閰嶅埌鐨勫唴瀹規(guī)槸 "ccccc"銆傚啀嬈″尮閰嶄笅涓�涓椂錛屽皢寰楀埌 999999999銆傝繖涓〃杈懼紡瑕佹眰 "\w" 鑼冨洿鐨勫瓧絎﹁嚦灝戦噸澶?嬈★紝娉ㄦ剰涓?"\w{5,}" 涔嬮棿鐨勫尯鍒�?/p>
		<p>聽聽聽 涓句緥3錛氳〃杈懼紡 "&lt;(\w+)\s*(\w+(=('|").*?\4)?\s*)*&gt;.*?&lt;/\1&gt;" 鍦ㄥ尮閰?"&lt;td id='td1' style="bgcolor:white"&gt;&lt;/td&gt;" 鏃訛紝鍖歸厤緇撴灉鏄垚鍔熴�傚鏋?"&lt;td&gt;" 涓?"&lt;/td&gt;" 涓嶉厤瀵癸紝鍒欎細鍖歸厤澶辮觸錛涘鏋滄敼鎴愬叾浠栭厤瀵癸紝涔熷彲浠ュ尮閰嶆垚鍔熴�?/p>
		<p>
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		<p>2.3 棰勬悳绱紝涓嶅尮閰嶏紱鍙嶅悜棰勬悳绱紝涓嶅尮閰?br />聽聽聽 鍓嶉潰鐨勭珷鑺備腑錛屾垜璁插埌浜嗗嚑涓唬琛ㄦ娊璞℃剰涔夌殑鐗規(guī)畩絎﹀彿錛?^"錛?$"錛?\b"銆傚畠浠兘鏈変竴涓叡鍚岀偣錛岄偅灝辨槸錛氬畠浠湰韜笉鍖歸厤浠諱綍瀛楃錛屽彧鏄 "瀛楃涓茬殑涓ゅご" 鎴栬�?"瀛楃涔嬮棿鐨勭紳闅? 闄勫姞浜嗕竴涓潯浠躲�傜悊瑙ｅ埌榪欎釜姒傚康浠ュ悗錛屾湰鑺傚皢緇х畫浠嬬粛鍙﹀涓�縐嶅 "涓ゅご" 鎴栬�?"緙濋殭" 闄勫姞鏉′歡鐨勶紝鏇村姞鐏墊椿鐨勮〃紺烘柟娉曘�?/p>
		<p>聽聽聽 姝ｅ悜棰勬悳绱細"(?=xxxxx)"錛?(?!xxxxx)"</p>
		<p>聽聽聽 鏍煎紡錛?(?=xxxxx)"錛屽湪琚尮閰嶇殑瀛楃涓蹭腑錛屽畠瀵規(guī)墍澶勭殑 "緙濋殭" 鎴栬�?"涓ゅご" 闄勫姞鐨勬潯浠舵槸錛氭墍鍦ㄧ紳闅欑殑鍙充晶錛屽繀欏昏兘澶熷尮閰嶄笂 xxxxx 榪欓儴鍒嗙殑琛ㄨ揪寮忋�傚洜涓哄畠鍙槸鍦ㄦ浣滀負榪欎釜緙濋殭涓婇檮鍔犵殑鏉′歡錛屾墍浠ュ畠騫朵笉褰卞搷鍚庤竟鐨勮〃杈懼紡鍘葷湡姝ｅ尮閰嶈繖涓紳闅欎箣鍚庣殑瀛楃銆傝繖灝辯被浼?"\b"錛屾湰韜笉鍖歸厤浠諱綍瀛楃銆?\b" 鍙槸灝嗘墍鍦ㄧ紳闅欎箣鍓嶃�佷箣鍚庣殑瀛楃鍙栨潵榪涜浜嗕竴涓嬪垽鏂紝涓嶄細褰卞搷鍚庤竟鐨勮〃杈懼紡鏉ョ湡姝ｇ殑鍖歸厤銆?/p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "Windows (?=NT|XP)" 鍦ㄥ尮閰?"Windows 98, Windows NT, Windows 2000" 鏃訛紝灝嗗彧鍖歸厤 "Windows NT" 涓殑 "Windows "錛屽叾浠栫殑 "Windows " 瀛楁牱鍒欎笉琚尮閰嶃�?/p>
		<p>聽聽聽 涓句緥2錛氳〃杈懼紡 "(\w)((?=\1\1\1)(\1))+" 鍦ㄥ尮閰嶅瓧絎︿覆 "aaa ffffff 999999999" 鏃訛紝灝嗗彲浠ュ尮閰?涓?f"鐨勫墠4涓紝鍙互鍖歸厤9涓?9"鐨勫墠7涓�傝繖涓〃杈懼紡鍙互璇昏В鎴愶細閲嶅4嬈′互涓婄殑瀛楁瘝鏁板瓧錛屽垯鍖歸厤鍏跺墿涓嬫渶鍚?浣嶄箣鍓嶇殑閮ㄥ垎銆傚綋鐒訛紝榪欎釜琛ㄨ揪寮忓彲浠ヤ笉榪欐牱鍐欙紝鍦ㄦ鐨勭洰鐨勬槸浣滀負婕旂ず涔嬬敤銆?/p>
		<p>聽聽聽 鏍煎紡錛?(?!xxxxx)"錛屾墍鍦ㄧ紳闅欑殑鍙充晶錛屽繀欏諱笉鑳藉尮閰?xxxxx 榪欓儴鍒嗚〃杈懼紡銆?/p>
		<p>聽聽聽 涓句緥3錛氳〃杈懼紡 "((?!\bstop\b).)+" 鍦ㄥ尮閰?"fdjka ljfdl stop fjdsla fdj" 鏃訛紝灝嗕粠澶翠竴鐩村尮閰嶅埌 "stop" 涔嬪墠鐨勪綅緗紝濡傛灉瀛楃涓蹭腑娌℃湁 "stop"錛屽垯鍖歸厤鏁翠釜瀛楃涓層�?/p>
		<p>聽聽聽 涓句緥4錛氳〃杈懼紡 "do(?!\w)" 鍦ㄥ尮閰嶅瓧絎︿覆 "done, do, dog" 鏃訛紝鍙兘鍖歸厤 "do"銆傚湪鏈潯涓句緥涓紝"do" 鍚庤竟浣跨敤 "(?!\w)" 鍜屼嬌鐢?"\b" 鏁堟灉鏄竴鏍風殑銆?/p>
		<p>聽聽聽 鍙嶅悜棰勬悳绱細"(?&lt;=xxxxx)"錛?(?&lt;!xxxxx)"</p>
		<p>聽聽聽 榪欎袱縐嶆牸寮忕殑姒傚康鍜屾鍚戦鎼滅儲鏄被浼肩殑錛屽弽鍚戦鎼滅儲瑕佹眰鐨勬潯浠舵槸錛氭墍鍦ㄧ紳闅欑殑 "宸︿晶"錛屼袱縐嶆牸寮忓垎鍒姹傚繀欏昏兘澶熷尮閰嶅拰蹇呴』涓嶈兘澶熷尮閰嶆寚瀹氳〃杈懼紡錛岃�屼笉鏄幓鍒ゆ柇鍙充晶銆備笌 "姝ｅ悜棰勬悳绱? 涓�鏍風殑鏄細瀹冧滑閮芥槸瀵規(guī)墍鍦ㄧ紳闅欑殑涓�縐嶉檮鍔犳潯浠訛紝鏈韓閮戒笉鍖歸厤浠諱綍瀛楃銆?/p>
		<p>聽聽聽 涓句緥5錛氳〃杈懼紡 "(?&lt;=\d{4})\d+(?=\d{4})" 鍦ㄥ尮閰?"1234567890123456" 鏃訛紝灝嗗尮閰嶉櫎浜嗗墠4涓暟瀛楀拰鍚?涓暟瀛椾箣澶栫殑涓棿8涓暟瀛椼�傜敱浜?JScript.RegExp 涓嶆敮鎸佸弽鍚戦鎼滅儲錛屽洜姝わ紝鏈潯涓句緥涓嶈兘澶熻繘琛屾紨紺恒�傚緢澶氬叾浠栫殑寮曟搸鍙互鏀寔鍙嶅悜棰勬悳绱紝姣斿錛欽ava 1.4 浠ヤ笂鐨?java.util.regex 鍖咃紝.NET 涓璖ystem.Text.RegularExpressions 鍛藉悕絀洪棿錛宐oost::regex 浠ュ強 GRETA 姝ｅ垯琛ㄨ揪寮忓簱絳夈�?/p>
		<p>
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		<p>3. 鍏朵粬閫氱敤瑙勫垯<br />聽聽聽 榪樻湁涓�浜涘湪鍚勪釜姝ｅ垯琛ㄨ揪寮忓紩鎿庝箣闂存瘮杈冮�氱敤鐨勮鍒欙紝鍦ㄥ墠闈㈢殑璁茶В榪囩▼涓病鏈夋彁鍒般�?/p>
		<p>3.1 琛ㄨ揪寮忎腑錛屽彲浠ヤ嬌鐢?"\xXX" 鍜?"\uXXXX" 琛ㄧず涓�涓瓧絎︼紙"X" 琛ㄧず涓�涓崄鍏繘鍒舵暟錛?/p>
		<p>褰㈠紡<br />聽瀛楃鑼冨洿<br />聽<br />\xXX<br />聽緙栧彿鍦?0 ~ 255 鑼冨洿鐨勫瓧絎︼紝姣斿錛氱┖鏍煎彲浠ヤ嬌鐢?"\x20" 琛ㄧず<br />聽<br />\uXXXX<br />聽浠諱綍瀛楃鍙互浣跨敤 "\u" 鍐嶅姞涓婂叾緙栧彿鐨?浣嶅崄鍏繘鍒舵暟琛ㄧず錛屾瘮濡傦細"\u4E2D"<br />聽</p>
		<p>3.2 鍦ㄨ〃杈懼紡 "\s"錛?\d"錛?\w"錛?\b" 琛ㄧず鐗規(guī)畩鎰忎箟鐨勫悓鏃訛紝瀵瑰簲鐨勫ぇ鍐欏瓧姣嶈〃紺虹浉鍙嶇殑鎰忎箟</p>
		<p>琛ㄨ揪寮?br />聽鍙尮閰?br />聽<br />\S<br />聽鍖歸厤鎵�鏈夐潪絀虹櫧瀛楃錛?\s" 鍙尮閰嶅悇涓┖鐧藉瓧絎︼級<br />聽<br />\D<br />聽鍖歸厤鎵�鏈夌殑闈炴暟瀛楀瓧絎?br />聽<br />\W<br />聽鍖歸厤鎵�鏈夌殑瀛楁瘝銆佹暟瀛椼�佷笅鍒掔嚎浠ュ鐨勫瓧絎?br />聽<br />\B<br />聽鍖歸厤闈炲崟璇嶈竟鐣岋紝鍗沖乏鍙充袱杈歸兘鏄?"\w" 鑼冨洿鎴栬�呭乏鍙充袱杈歸兘涓嶆槸 "\w" 鑼冨洿鏃剁殑瀛楃緙濋殭<br />聽</p>
		<p>3.3 鍦ㄨ〃杈懼紡涓湁鐗規(guī)畩鎰忎箟錛岄渶瑕佹坊鍔?"\" 鎵嶈兘鍖歸厤璇ュ瓧絎︽湰韜殑瀛楃姹囨�?/p>
		<p>瀛楃<br />聽璇存槑<br />聽<br />^<br />聽鍖歸厤杈撳叆瀛楃涓茬殑寮�濮嬩綅緗�傝鍖歸厤 "^" 瀛楃鏈韓錛岃浣跨敤 "\^"<br />聽<br />$<br />聽鍖歸厤杈撳叆瀛楃涓茬殑緇撳熬浣嶇疆銆傝鍖歸厤 "$" 瀛楃鏈韓錛岃浣跨敤 "\$"<br />聽<br />( )<br />聽鏍囪涓�涓瓙琛ㄨ揪寮忕殑寮�濮嬪拰緇撴潫浣嶇疆銆傝鍖歸厤灝忔嫭鍙鳳紝璇蜂嬌鐢?"\(" 鍜?"\)"<br />聽<br />[ ]<br />聽鐢ㄦ潵鑷畾涔夎兘澶熷尮閰?'澶氱瀛楃' 鐨勮〃杈懼紡銆傝鍖歸厤涓嫭鍙鳳紝璇蜂嬌鐢?"\[" 鍜?"\]"<br />聽<br />{ }<br />聽淇グ鍖歸厤嬈℃暟鐨勭鍙楓�傝鍖歸厤澶ф嫭鍙鳳紝璇蜂嬌鐢?"\{" 鍜?"\}"<br />聽<br />.<br />聽鍖歸厤闄や簡鎹㈣絎︼紙\n錛変互澶栫殑浠繪剰涓�涓瓧絎︺�傝鍖歸厤灝忔暟鐐規(guī)湰韜紝璇蜂嬌鐢?"\."<br />聽<br />?<br />聽淇グ鍖歸厤嬈℃暟涓?0 嬈℃垨 1 嬈°�傝鍖歸厤 "?" 瀛楃鏈韓錛岃浣跨敤 "\?"<br />聽<br />+<br />聽淇グ鍖歸厤嬈℃暟涓鴻嚦灝?1 嬈°�傝鍖歸厤 "+" 瀛楃鏈韓錛岃浣跨敤 "\+"<br />聽<br />*<br />聽淇グ鍖歸厤嬈℃暟涓?0 嬈℃垨浠繪剰嬈°�傝鍖歸厤 "*" 瀛楃鏈韓錛岃浣跨敤 "\*"<br />聽<br />|<br />聽宸﹀彸涓よ竟琛ㄨ揪寮忎箣闂?"鎴? 鍏崇郴銆傚尮閰?"|" 鏈韓錛岃浣跨敤 "\|"<br />聽</p>
		<p>3.4 鎷彿 "( )" 鍐呯殑瀛愯〃杈懼紡錛屽鏋滃笇鏈涘尮閰嶇粨鏋滀笉榪涜璁板綍渚涗互鍚庝嬌鐢紝鍙互浣跨敤 "(?:xxxxx)" 鏍煎紡</p>
		<p>聽聽聽 涓句緥1錛氳〃杈懼紡 "(?:(\w)\1)+" 鍖歸厤 "a bbccdd efg" 鏃訛紝緇撴灉鏄?"bbccdd"銆傛嫭鍙?"(?:)" 鑼冨洿鐨勫尮閰嶇粨鏋滀笉榪涜璁板綍錛屽洜姝?"(\w)" 浣跨敤 "\1" 鏉ュ紩鐢ㄣ�?/p>
		<p>3.5 甯哥敤鐨勮〃杈懼紡灞炴�ц緗畝浠嬶細Ignorecase錛孲ingleline錛孧ultiline錛孏lobal</p>
		<p>琛ㄨ揪寮忓睘鎬?br />聽璇存槑<br />聽<br />Ignorecase<br />聽榛樿鎯呭喌涓嬶紝琛ㄨ揪寮忎腑鐨勫瓧姣嶆槸瑕佸尯鍒嗗ぇ灝忓啓鐨勩�傞厤緗負 Ignorecase 鍙嬌鍖歸厤鏃朵笉鍖哄垎澶у皬鍐欍�傛湁鐨勮〃杈懼紡寮曟搸錛屾妸 "澶у皬鍐? 姒傚康寤朵幾鑷?UNICODE 鑼冨洿鐨勫ぇ灝忓啓銆?br />聽<br />Singleline<br />聽榛樿鎯呭喌涓嬶紝灝忔暟鐐?"." 鍖歸厤闄や簡鎹㈣絎︼紙\n錛変互澶栫殑瀛楃銆傞厤緗負 Singleline 鍙嬌灝忔暟鐐瑰彲鍖歸厤鍖呮嫭鎹㈣絎﹀湪鍐呯殑鎵�鏈夊瓧絎︺�?br />聽<br />Multiline<br />聽榛樿鎯呭喌涓嬶紝琛ㄨ揪寮?"^" 鍜?"$" 鍙尮閰嶅瓧絎︿覆鐨勫紑濮?鈶?鍜岀粨灝?鈶?浣嶇疆銆傚錛?/p>
		<p>鈶爔xxxxxxxx鈶n<br />鈶xxxxxxxx鈶?/p>
		<p>閰嶇疆涓?Multiline 鍙互浣?"^" 鍖歸厤 鈶?澶栵紝榪樺彲浠ュ尮閰嶆崲琛岀涔嬪悗錛屼笅涓�琛屽紑濮嬪墠 鈶?鐨勪綅緗紝浣?"$" 鍖歸厤 鈶?澶栵紝榪樺彲浠ュ尮閰嶆崲琛岀涔嬪墠錛屼竴琛岀粨鏉?鈶?鐨勪綅緗�?br />聽<br />Global<br />聽涓昏鍦ㄥ皢琛ㄨ揪寮忕敤鏉ユ浛鎹㈡椂璧蜂綔鐢紝閰嶇疆涓?Global 琛ㄧず鏇挎崲鎵�鏈夌殑鍖歸厤銆?br />聽</p>
		<p>聽</p>
		<p>--------------------------------------------------------------------------------</p>
		<p>
				<br />4. 緇煎悎鎻愮ず<br />4.1 濡傛灉瑕佽姹傝〃杈懼紡鎵�鍖歸厤鐨勫唴瀹規(guī)槸鏁翠釜瀛楃涓詫紝鑰屼笉鏄粠瀛楃涓蹭腑鎵句竴閮ㄥ垎錛岄偅涔堝彲浠ュ湪琛ㄨ揪寮忕殑棣栧熬浣跨敤 "^" 鍜?"$"錛屾瘮濡傦細"^\d+$" 瑕佹眰鏁翠釜瀛楃涓插彧鏈夋暟瀛椼�?/p>
		<p>4.2 濡傛灉瑕佹眰鍖歸厤鐨勫唴瀹規(guī)槸涓�涓畬鏁寸殑鍗曡瘝錛岃�屼笉浼氭槸鍗曡瘝鐨勪竴閮ㄥ垎錛岄偅涔堝湪琛ㄨ揪寮忛灝句嬌鐢?"\b"錛屾瘮濡傦細浣跨敤 "\b(if|while|else|void|int鈥︹�?\b" 鏉ュ尮閰嶇▼搴忎腑鐨勫叧閿瓧銆?/p>
		<p>4.3 琛ㄨ揪寮忎笉瑕佸尮閰嶇┖瀛楃涓層�傚惁鍒欎細涓�鐩村緱鍒板尮閰嶆垚鍔燂紝鑰岀粨鏋滀粈涔堥兘娌℃湁鍖歸厤鍒般�傛瘮濡傦細鍑嗗鍐欎竴涓尮閰?"123"銆?123."銆?123.5"銆?.5" 榪欏嚑縐嶅艦寮忕殑琛ㄨ揪寮忔椂錛屾暣鏁般�佸皬鏁扮偣銆佸皬鏁版暟瀛楅兘鍙互鐪佺暐錛屼絾鏄笉瑕佸皢琛ㄨ揪寮忓啓鎴愶細"\d*\.?\d*"錛屽洜涓哄鏋滀粈涔堥兘娌℃湁錛岃繖涓〃杈懼紡涔熷彲浠ュ尮閰嶆垚鍔熴�傛洿濂界殑鍐欐硶鏄細"\d+\.?\d*|\.\d+"銆?/p>
		<p>4.4 鑳藉尮閰嶇┖瀛楃涓茬殑瀛愬尮閰嶄笉瑕佸驚鐜棤闄愭銆傚鏋滄嫭鍙峰唴鐨勫瓙琛ㄨ揪寮忎腑鐨勬瘡涓�閮ㄥ垎閮藉彲浠ュ尮閰?0 嬈★紝鑰岃繖涓嫭鍙鋒暣浣撳張鍙互鍖歸厤鏃犻檺嬈★紝閭ｄ箞鎯呭喌鍙兘姣斾笂涓�鏉℃墍璇寸殑鏇翠弗閲嶏紝鍖歸厤榪囩▼涓彲鑳芥寰幆銆傝櫧鐒剁幇鍦ㄦ湁浜涙鍒欒〃杈懼紡寮曟搸宸茬粡閫氳繃鍔炴硶閬垮厤浜嗚繖縐嶆儏鍐靛嚭鐜版寰幆浜嗭紝姣斿 .NET 鐨勬鍒欒〃杈懼紡錛屼絾鏄垜浠粛鐒跺簲璇ュ敖閲忛伩鍏嶅嚭鐜拌繖縐嶆儏鍐點�傚鏋滄垜浠湪鍐欒〃杈懼紡鏃墮亣鍒頒簡姝誨驚鐜紝涔熷彲浠ヤ粠榪欎竴鐐瑰叆鎵嬶紝鏌ユ壘涓�涓嬫槸鍚︽槸鏈潯鎵�璇寸殑鍘熷洜銆?/p>
		<p>4.5 鍚堢悊閫夋嫨璐┆妯″紡涓庨潪璐┆妯″紡錛屽弬瑙佽瘽棰樿璁恒�?/p>
		<p>4.6 鎴?"|" 鐨勫乏鍙充袱杈癸紝瀵規(guī)煇涓瓧絎︽渶濂藉彧鏈変竴杈瑰彲浠ュ尮閰嶏紝榪欐牱錛屼笉浼氬洜涓?"|" 涓よ竟鐨勮〃杈懼紡鍥犱負浜ゆ崲浣嶇疆鑰屾湁鎵�涓嶅悓銆?/p>
		<p>聽</p>
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