>How about
>
>#!/usr/bin/perl -w
>
>use strict;
>use warnings;
>
>for( my $networkpart = 128; $networkpart <= 158; $networkpart++ ){
>  for( my $hostpart = 0; $hostpart < 256; $hostpart++ ){
>    print "202.90.$networkpart.$hostpart\n";
>  }
>}
>__END__
>

The '-w' option is not needed here since you have 'use warnings'.

--
Jeff Pang
NetEase AntiSpam Team
http://corp.netease.com

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