#!\usr\bin\perl -w
for($_="head";s/(.)//;){
 print"now head is $_.\n";
}
#!\usr\bin\perl -w
for($_="head";s/.//;){
 print"now head is $_.\n";
}

[download]

who would like to tell me why the two can come to the same result when run them?
thanks

20041103 Janitored by Corion: Added formatting

2004-11-04 Edited by Arunbear: Changed title from 'cycle', as per Monastery guidelines

In reply to Unnecessary use of capturing in regex? by biofeng918

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