Perl splitå½æ°
Perlä¸çä¸ä¸ªé常æç¨çå½æ°æ¯Perl splitå½æ°-æå符串è¿è¡åå²å¹¶æåå²åçç»ææ¾å
¥æ°ç»ä¸ãè¿ä¸ªPerl
splitå½æ°ä½¿ç¨è§å表达å¼ï¼REï¼ï¼å¦ææªç¹å®åå·¥ä½å¨$_åéä¸ã
Perl splitå½æ°å¯ä»¥è¿æ ·ä½¿ç¨ï¼
$info="Caine:Michael:Actor:14,LeafyDrive";
@personal=split(/:/,$info);
å
¶ç»ææ¯ï¼@personal=("Caine","Michael","Actor","14,LeafyDrive");
âå¦ææ们已ç»æä¿¡æ¯åæ¾å¨$_åéä¸ï¼é£ä¹å¯ä»¥è¿æ ·ï¼
@personal=split(/:/);
å¦æå个å被任ä½æ°éçåå·åéï¼å¯ä»¥ç¨RE代ç è¿è¡åå²ï¼
$_="Capes:Geoff::Shotputter:::BigAvenue";
@personal=split(/:+/);
å
¶ç»ææ¯ï¼@personal=("Capes","Geoff","Shotputter","BigAvenue");
ä½æ¯ä¸é¢ç代ç ï¼
$_="Capes:Geoff::Shotputter:::BigAvenue";
@personal=split(/:/);
çç»ææ¯ï¼@personal=("Capes","Geoff","","Shotputter","","","BigAvenue");
âè¿ä¸ªPerl splitå½æ°ä¸åè¯å¯ä»¥è¢«åå²æå符ï¼å¥åå¯ä»¥è¢«åå²æåè¯ï¼æ®µè½å¯ä»¥è¢«åå²æå¥åï¼
@chars=split(//,$word);
@words=split(//,$sentence);
@sentences=split(/\./,$paragraph);
å¨ç¬¬ä¸å¥ä¸ï¼ç©ºå符串å¨æ¯ä¸ªå符é´å¹é
ï¼æ以@charsæ°ç»æ¯ä¸ä¸ªå符çæ°ç»ã>>
//ä¹é´çé¨å表示splitç¨å°çæ£å表达å¼ï¼æè
说åéæ³åï¼
\sæ¯ä¸ç§éé
符ï¼ä»£è¡¨ç©ºæ ¼
+代表éå¤ä¸æ¬¡æè
ä¸æ¬¡ä»¥ä¸ã
æ以ï¼\s+代表ä¸ä¸ªæè
ä¸ä¸ªä»¥ä¸çç©ºæ ¼ã
split(/\s+/,$line)表示æå符串$line,æç©ºæ ¼ä¸ºçåå¼ã
温馨提示:答案为网友推荐,仅供参考