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]]> - 姝ｅ垯琛ㄨ揪寮?/title><link>http://www.tkk7.com/windel/archive/2006/07/28/60451.html</link><dc:creator>windel</dc:creator><author>windel</author><pubDate>Thu, 27 Jul 2006 19:08:00 GMT</pubDate><guid>http://www.tkk7.com/windel/archive/2006/07/28/60451.html</guid><wfw:comment>http://www.tkk7.com/windel/comments/60451.html</wfw:comment><comments>http://www.tkk7.com/windel/archive/2006/07/28/60451.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.tkk7.com/windel/comments/commentRss/60451.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/windel/services/trackbacks/60451.html</trackback:ping><description><![CDATA[
<p>浠婂ぉ鍦ㄧ湅THJ3鐗堢殑鏃跺欏張鐪嬪埌鍏沖ぉ姝ｅ垯琛ㄨ揪寮忕殑涓浜涚煡璇嗭紝姝ｅ垯琛ㄨ揪寮忔槸java鍦╦dk1.4涓紩鍏ョ殑鏂扮壒鎬с傛鍒欒〃杈懼紡鏄嬌鐢ㄩ氱敤鏈鏉ユ弿榪板瓧絎︿覆鐨勪竴縐嶆柟娉曪紝浣犲彲浠ヨ錛氬鏋滀竴涓瓧絎︿覆鍖呭惈榪欎簺涓滆タ錛岄偅涔堝畠涓庢垜瑕佹壘鐨勪笢瑗跨浉鍖歸厤銆?/p>
<p>涓嬮潰鏄叧浜庢鍒欒〃杈懼紡鐨勪竴浜涜娉曪紝綆鍗曠ず涔嬶細(xì)<br />涓涓鍒欒〃杈懼紡灝辨槸鐢辨櫘閫氬瓧絎︼紙渚嬪瀛楃 a 鍒?z錛変互鍙?qiáng)鐗箤D婂瓧絎︼紙縐頒負(fù)鍏冨瓧絎︼級(jí)緇勬垚鐨勬枃瀛楁ā寮忋傝妯″紡鎻忚堪鍦ㄦ煡鎵炬枃瀛椾富浣撴椂寰呭尮閰嶇殑涓涓垨澶氫釜瀛楃涓層傛鍒欒〃杈懼紡浣滀負(fù)涓涓ā鏉匡紝灝嗘煇涓瓧絎︽ā寮忎笌鎵鎼滅儲(chǔ)鐨勫瓧絎︿覆榪涜鍖歸厤銆?</p>
<p>榪欓噷鏈変竴浜涘彲鑳戒細(xì)閬囧埌鐨勬鍒欒〃杈懼紡紺轟緥錛?</p>
<p>涓嬭〃鏄厓瀛楃鍙?qiáng)鍏跺湪姝ｅ垯琛ㄨ緫旨忎笂涓嬫枃涓殑琛屼负鐨勪竴涓畬鏁村垪琛細(xì) </p>
<p>瀛楃 <br />鎻忚堪 </p>
<p>\ <br />灝嗕笅涓涓瓧絎︽爣璁頒負(fù)涓涓壒孌婂瓧絎︺佹垨涓涓師涔夊瓧絎︺佹垨涓涓?鍚庡悜寮曠敤銆佹垨涓涓叓榪涘埗杞箟絎︺備緥濡傦紝'n' 鍖歸厤瀛楃 "n"銆?\n' 鍖歸厤涓涓崲琛岀銆傚簭鍒?'\\' 鍖歸厤 "\" 鑰?"\(" 鍒欏尮閰?"("銆?</p>
<p>^ <br />鍖歸厤杈撳叆瀛楃涓茬殑寮濮嬩綅緗傚鏋滆緗簡(jiǎn) RegExp 瀵硅薄鐨?Multiline 灞炴э紝^ 涔熷尮閰?'\n' 鎴?'\r' 涔嬪悗鐨勪綅緗?</p>
<p>$ <br />鍖歸厤杈撳叆瀛楃涓茬殑緇撴潫浣嶇疆銆傚鏋滆緗簡(jiǎn)RegExp 瀵硅薄鐨?Multiline 灞炴э紝$ 涔熷尮閰?'\n' 鎴?'\r' 涔嬪墠鐨勪綅緗?</p>
<p>* <br />鍖歸厤鍓嶉潰鐨勫瓙琛ㄨ揪寮忛浂嬈℃垨澶氭銆備緥濡傦紝zo* 鑳藉尮閰?"z" 浠ュ強(qiáng) "zoo"銆?* 絳変環(huán)浜巤0,}銆?</p>
<p>+ <br />鍖歸厤鍓嶉潰鐨勫瓙琛ㄨ揪寮忎竴嬈℃垨澶氭銆備緥濡傦紝'zo+' 鑳藉尮閰?"zo" 浠ュ強(qiáng) "zoo"錛屼絾涓嶈兘鍖歸厤 "z"銆? 絳変環(huán)浜?{1,}銆?</p>
<p>? <br />鍖歸厤鍓嶉潰鐨勫瓙琛ㄨ揪寮忛浂嬈℃垨涓嬈°備緥濡傦紝"do(es)?" 鍙互鍖歸厤 "do" 鎴?"does" 涓殑"do" 銆? 絳変環(huán)浜?{0,1}銆?</p>
<p>{n} <br />n 鏄竴涓潪璐熸暣鏁般傚尮閰嶇‘瀹氱殑 n 嬈°備緥濡傦紝'o{2}' 涓嶈兘鍖歸厤 "Bob" 涓殑 'o'錛屼絾鏄兘鍖歸厤 "food" 涓殑涓や釜 o銆?</p>
<p>{n,} <br />n 鏄竴涓潪璐熸暣鏁般傝嚦灝戝尮閰峮 嬈°備緥濡傦紝'o{2,}' 涓嶈兘鍖歸厤 "Bob" 涓殑 'o'錛屼絾鑳藉尮閰?"foooood" 涓殑鎵鏈?o銆?o{1,}' 絳変環(huán)浜?'o+'銆?o{0,}' 鍒欑瓑浠蜂簬 'o*'銆?</p>
<p>{n,m} <br />m 鍜?n 鍧囦負(fù)闈炶礋鏁存暟錛屽叾涓璶 <= m銆傛渶灝戝尮閰?n 嬈′笖鏈澶氬尮閰?m 嬈°?"o{1,3}" 灝嗗尮閰?"fooooood" 涓殑鍓嶄笁涓?o銆?o{0,1}' 絳変環(huán)浜?'o?'銆傝娉ㄦ剰鍦ㄩ楀彿鍜屼袱涓暟涔嬮棿涓嶈兘鏈夌┖鏍箋?</p>
<p>? <br />褰撹瀛楃绱ц窡鍦ㄤ換浣曚竴涓叾浠栭檺鍒剁 (*, +, ?, {n}, {n,}, {n,m}) 鍚庨潰鏃訛紝鍖歸厤妯″紡鏄潪璐┆鐨勩傞潪璐┆妯″紡灝藉彲鑳藉皯鐨勫尮閰嶆墍鎼滅儲(chǔ)鐨勫瓧絎︿覆錛岃岄粯璁ょ殑璐┆妯″紡鍒欏敖鍙兘澶氱殑鍖歸厤鎵鎼滅儲(chǔ)鐨勫瓧絎︿覆銆備緥濡傦紝瀵逛簬瀛楃涓?"oooo"錛?o+?' 灝嗗尮閰嶅崟涓?"o"錛岃?'o+' 灝嗗尮閰嶆墍鏈?'o'銆?</p>
<p>. <br />鍖歸厤闄?"\n" 涔嬪鐨勪換浣曞崟涓瓧絎︺傝鍖歸厤鍖呮嫭 '\n' 鍦ㄥ唴鐨勪換浣曞瓧絎︼紝璇蜂嬌鐢ㄨ薄 '[.\n]' 鐨勬ā寮忋?</p>
<p>(pattern) <br />鍖歸厤pattern 騫惰幏鍙栬繖涓鍖歸厤銆傛墍鑾峰彇鐨勫尮閰嶅彲浠ヤ粠浜х敓鐨?Matches 闆嗗悎寰楀埌錛屽湪VBScript 涓嬌鐢?SubMatches 闆嗗悎錛屽湪Visual Basic Scripting Edition 涓垯浣跨敤 $0鈥?9 灞炴с傝鍖歸厤鍦嗘嫭鍙峰瓧絎︼紝璇蜂嬌鐢?'\(' 鎴?'\)'銆?</p>
<p>(?:pattern) <br />鍖歸厤 pattern 浣嗕笉鑾峰彇鍖歸厤緇撴灉錛屼篃灝辨槸璇磋繖鏄竴涓潪鑾峰彇鍖歸厤錛屼笉榪涜瀛樺偍渚涗互鍚庝嬌鐢ㄣ傝繖鍦ㄤ嬌鐢?"鎴? 瀛楃 (|) 鏉ョ粍鍚堜竴涓ā寮忕殑鍚勪釜閮ㄥ垎鏄緢鏈夌敤銆備緥濡傦紝 'industr(?:y|ies) 灝辨槸涓涓瘮 'industry|industries' 鏇寸畝鐣ョ殑琛ㄨ揪寮忋?</p>
<p>(?=pattern) <br />姝ｅ悜棰勬煡錛屽湪浠諱綍鍖歸厤 pattern 鐨勫瓧絎︿覆寮濮嬪鍖歸厤鏌ユ壘瀛楃涓層傝繖鏄竴涓潪鑾峰彇鍖歸厤錛屼篃灝辨槸璇達(dá)紝璇ュ尮閰嶄笉闇瑕佽幏鍙栦緵浠ュ悗浣跨敤銆備緥濡傦紝 'Windows (?=95|98|NT|2000)' 鑳藉尮閰?"Windows 2000" 涓殑 "Windows" 錛屼絾涓嶈兘鍖歸厤 "Windows 3.1" 涓殑 "Windows"銆傞鏌ヤ笉娑堣楀瓧絎︼紝涔熷氨鏄錛屽湪涓涓尮閰嶅彂鐢熷悗錛屽湪鏈鍚庝竴嬈″尮閰嶄箣鍚庣珛鍗沖紑濮嬩笅涓嬈″尮閰嶇殑鎼滅儲(chǔ)錛岃屼笉鏄粠鍖呭惈棰勬煡鐨勫瓧絎︿箣鍚庡紑濮嬨?</p>
<p>(?!pattern) <br />璐熷悜棰勬煡錛屽湪浠諱綍涓嶅尮閰峃egative lookahead matches the search string at any point where a string not matching pattern 鐨勫瓧絎︿覆寮濮嬪鍖歸厤鏌ユ壘瀛楃涓層傝繖鏄竴涓潪鑾峰彇鍖歸厤錛屼篃灝辨槸璇達(dá)紝璇ュ尮閰嶄笉闇瑕佽幏鍙栦緵浠ュ悗浣跨敤銆備緥濡?Windows (?!95|98|NT|2000)' 鑳藉尮閰?"Windows 3.1" 涓殑 "Windows"錛屼絾涓嶈兘鍖歸厤 "Windows 2000" 涓殑 "Windows"銆傞鏌ヤ笉娑堣楀瓧絎︼紝涔熷氨鏄錛屽湪涓涓尮閰嶅彂鐢熷悗錛屽湪鏈鍚庝竴嬈″尮閰嶄箣鍚庣珛鍗沖紑濮嬩笅涓嬈″尮閰嶇殑鎼滅儲(chǔ)錛岃屼笉鏄粠鍖呭惈棰勬煡鐨勫瓧絎︿箣鍚庡紑濮?</p>
<p>x|y <br />鍖歸厤 x 鎴?y銆備緥濡傦紝'z|food' 鑳藉尮閰?"z" 鎴?"food"銆?(z|f)ood' 鍒欏尮閰?"zood" 鎴?"food"銆?</p>
<p>[xyz] <br />瀛楃闆嗗悎銆傚尮閰嶆墍鍖呭惈鐨勪換鎰忎竴涓瓧絎︺備緥濡傦紝 '[abc]' 鍙互鍖歸厤 "plain" 涓殑 'a'銆?</p>
<p>[^xyz] <br />璐熷煎瓧絎﹂泦鍚堛傚尮閰嶆湭鍖呭惈鐨勪換鎰忓瓧絎︺備緥濡傦紝 '[^abc]' 鍙互鍖歸厤 "plain" 涓殑'p'銆?</p>
<p>[a-z] <br />瀛楃鑼冨洿銆傚尮閰嶆寚瀹氳寖鍥村唴鐨勪換鎰忓瓧絎︺備緥濡傦紝'[a-z]' 鍙互鍖歸厤 'a' 鍒?'z' 鑼冨洿鍐呯殑浠繪剰灝忓啓瀛楁瘝瀛楃銆?</p>
<p>[^a-z] <br />璐熷煎瓧絎﹁寖鍥淬傚尮閰嶄換浣曚笉鍦ㄦ寚瀹氳寖鍥村唴鐨勪換鎰忓瓧絎︺備緥濡傦紝'[^a-z]' 鍙互鍖歸厤浠諱綍涓嶅湪 'a' 鍒?'z' 鑼冨洿鍐呯殑浠繪剰瀛楃銆?</p>
<p>\b <br />鍖歸厤涓涓崟璇嶈竟鐣岋紝涔熷氨鏄寚鍗曡瘝鍜岀┖鏍奸棿鐨勪綅緗備緥濡傦紝 'er\b' 鍙互鍖歸厤"never" 涓殑 'er'錛屼絾涓嶈兘鍖歸厤 "verb" 涓殑 'er'銆?</p>
<p>\B <br />鍖歸厤闈炲崟璇嶈竟鐣屻?er\B' 鑳藉尮閰?"verb" 涓殑 'er'錛屼絾涓嶈兘鍖歸厤 "never" 涓殑 'er'銆?</p>
<p>\cx <br />鍖歸厤鐢眡鎸囨槑鐨勬帶鍒跺瓧絎︺備緥濡傦紝 \cM 鍖歸厤涓涓?Control-M 鎴栧洖杞︾銆?x 鐨勫煎繀欏諱負(fù) A-Z 鎴?a-z 涔嬩竴銆傚惁鍒欙紝灝?c 瑙嗕負(fù)涓涓師涔夌殑 'c' 瀛楃銆?</p>
<p>\d <br />鍖歸厤涓涓暟瀛楀瓧絎︺傜瓑浠蜂簬 [0-9]銆?</p>
<p>\D <br />鍖歸厤涓涓潪鏁板瓧瀛楃銆傜瓑浠蜂簬 [^0-9]銆?</p>
<p>\f <br />鍖歸厤涓涓崲欏電銆傜瓑浠蜂簬 \x0c 鍜?\cL銆?</p>
<p>\n <br />鍖歸厤涓涓崲琛岀銆傜瓑浠蜂簬 \x0a 鍜?\cJ銆?</p>
<p>\r <br />鍖歸厤涓涓洖杞︾銆傜瓑浠蜂簬 \x0d 鍜?\cM銆?</p>
<p>\s <br />鍖歸厤浠諱綍絀虹櫧瀛楃錛屽寘鎷┖鏍箋佸埗琛ㄧ銆佹崲欏電絳夌瓑銆傜瓑浠蜂簬 [ \f\n\r\t\v]銆?</p>
<p>\S <br />鍖歸厤浠諱綍闈炵┖鐧藉瓧絎︺傜瓑浠蜂簬 [^ \f\n\r\t\v]銆?</p>
<p>\t <br />鍖歸厤涓涓埗琛ㄧ銆傜瓑浠蜂簬 \x09 鍜?\cI銆?</p>
<p>\v <br />鍖歸厤涓涓瀭鐩村埗琛ㄧ銆傜瓑浠蜂簬 \x0b 鍜?\cK銆?</p>
<p>\w <br />鍖歸厤鍖呮嫭涓嬪垝綰跨殑浠諱綍鍗曡瘝瀛楃銆傜瓑浠蜂簬'[A-Za-z0-9_]'銆?</p>
<p>\W <br />鍖歸厤浠諱綍闈炲崟璇嶅瓧絎︺傜瓑浠蜂簬 '[^A-Za-z0-9_]'銆?</p>
<p>\xn <br />鍖歸厤 n錛屽叾涓?n 涓哄崄鍏繘鍒惰漿涔夊箋傚崄鍏繘鍒惰漿涔夊煎繀欏諱負(fù)紜畾鐨勪袱涓暟瀛楅暱銆備緥濡傦紝 '\x41' 鍖歸厤 "A"銆?\x041' 鍒欑瓑浠蜂簬 '\x04' & "1"銆傛鍒欒〃杈懼紡涓彲浠ヤ嬌鐢?ASCII 緙栫爜銆? </p>
<p>\num <br />鍖歸厤 num錛屽叾涓?num 鏄竴涓鏁存暟銆傚鎵鑾峰彇鐨勫尮閰嶇殑寮曠敤銆備緥濡傦紝'(.)\1' 鍖歸厤涓や釜榪炵畫鐨勭浉鍚屽瓧絎︺?</p>
<p>\n <br />鏍囪瘑涓涓叓榪涘埗杞箟鍊兼垨涓涓悗鍚戝紩鐢ㄣ傚鏋?\n 涔嬪墠鑷沖皯 n 涓幏鍙栫殑瀛愯〃杈懼紡錛屽垯 n 涓哄悗鍚戝紩鐢ㄣ傚惁鍒欙紝濡傛灉 n 涓哄叓榪涘埗鏁板瓧 (0-7)錛屽垯 n 涓轟竴涓叓榪涘埗杞箟鍊箋?</p>
<p>\nm <br />鏍囪瘑涓涓叓榪涘埗杞箟鍊兼垨涓涓悗鍚戝紩鐢ㄣ傚鏋?\nm 涔嬪墠鑷沖皯鏈塱s preceded by at least nm 涓幏鍙栧緱瀛愯〃杈懼紡錛屽垯 nm 涓哄悗鍚戝紩鐢ㄣ傚鏋?\nm 涔嬪墠鑷沖皯鏈?n 涓幏鍙栵紝鍒?n 涓轟竴涓悗璺熸枃瀛?m 鐨勫悗鍚戝紩鐢ㄣ傚鏋滃墠闈㈢殑鏉′歡閮戒笉婊¤凍錛岃嫢 n 鍜?m 鍧囦負(fù)鍏繘鍒舵暟瀛?(0-7)錛屽垯 \nm 灝嗗尮閰嶅叓榪涘埗杞箟鍊?nm銆?</p>
<p>\nml <br />濡傛灉 n 涓哄叓榪涘埗鏁板瓧 (0-3)錛屼笖 m 鍜?l 鍧囦負(fù)鍏繘鍒舵暟瀛?(0-7)錛屽垯鍖歸厤鍏繘鍒惰漿涔夊?nml銆?</p>
<p>\un <br />鍖歸厤 n錛屽叾涓?n 鏄竴涓敤鍥涗釜鍗佸叚榪涘埗鏁板瓧琛ㄧず鐨?Unicode 瀛楃銆備緥濡傦紝 \u00A9 鍖歸厤鐗堟潈絎﹀彿 (?)銆?/p>
<img src ="http://www.tkk7.com/windel/aggbug/60451.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/windel/" target="_blank">windel</a> 2006-07-28 03:08 <a href="http://www.tkk7.com/windel/archive/2006/07/28/60451.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>宸ヤ綔绱簡(jiǎn)http://www.tkk7.com/windel/archive/2006/06/14/52827.htmlwindelwindelWed, 14 Jun 2006 11:00:00 GMThttp://www.tkk7.com/windel/archive/2006/06/14/52827.htmlhttp://www.tkk7.com/windel/comments/52827.htmlhttp://www.tkk7.com/windel/archive/2006/06/14/52827.html#Feedback0http://www.tkk7.com/windel/comments/commentRss/52827.htmlhttp://www.tkk7.com/windel/services/trackbacks/52827.html
]]> - 寮濮嬩嬌鐢紒http://www.tkk7.com/windel/archive/2006/05/29/48760.htmlwindelwindelMon, 29 May 2006 07:30:00 GMThttp://www.tkk7.com/windel/archive/2006/05/29/48760.htmlhttp://www.tkk7.com/windel/comments/48760.htmlhttp://www.tkk7.com/windel/archive/2006/05/29/48760.html#Feedback0http://www.tkk7.com/windel/comments/commentRss/48760.htmlhttp://www.tkk7.com/windel/services/trackbacks/48760.html
]]>
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