[D]Perl 小程序怎么调不通呢
$^I=".bak";
Unless (open OUT,">a.txt"){
die "can not open file a\n";
}
while(<OUT>){
if(/^#!/){
$_.="## copyright (c) 2012 by Cindy\n";
}
print OUT "$_\n";
}
程序目的在#！后给文件加个版权字符串
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