Question

怎么在perl中输出结果到文件

Answer 1

代码如下：
#! usr/bin/perl -w

use strict;

use warnings;

open (FILE,"./a.txt") or die "can't open file:$!";

open (NEWFILE,"./b.txt") or die "can't open file:$!";

while(my $line = <STDIN>)

{

chomp($line);

my $newline = $line =~ s/4/5/g;

print NEWFILE $newline;

}

close FILE;

close NEWFILE;