1.文件读写与命令行参数

#!/usr/bin/perl

use strict;

if (@ARGV < 2){

    die  "USAGE: perl $0 inputfile outfile\n";

}

my ($infile) = @ARGV[0];

my ($outfile) = @ARGV[1];

open my $infile_fh,‘‘, "$infile" || die("Can‘t open the file!");

open my $outfile_fh, ‘>>‘, "$outfile"|| die("Can‘t open the file!");

while(<$infile_fh>){

    #chomp;

    print $outfile_fh  $_;

}

close($outfile_fh);

close($infile_fh);

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Learning Perl 学习笔记