On Wed, Mar 07, 2007 at 02:54:15PM +0800, Jm lists wrote: > Hello, > > $s="hello,test"; > > the 1st statement: > $s=~s/^(\w+)/$1 0000/ > > the 2nd statement: > $s=~s/^(\w+)/\1 0000/ > > > What's the difference between these two statements? > Thanks!
What was the output of your test script to find out? Try this Owen ======================================== #!/usr/bin/perl -w use strict; my $s="hello,test"; #the 1st statement: $s=~s/^(\w+)/$1 0000/; print "\$s from the first statement is $s\n"; $s="hello,test"; #the 2nd statement: $s=~s/^(\w+)/\1 0000/; print "\$s from the second statement is $s\n" -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
