小编gme*_*zos的帖子

我在遍历文件名时遇到问题，我的输入数组元素被删除了。

码：

use Data::Dumper;
use warnings;
use strict;


my @files = ("file1", "file2", "file3");

print Dumper(\@files);

for (@files) {
        my $filename = $_ . '.txt';
        open(my $fh, '<:encoding(UTF-8)', $filename)
          or die "Could not open file '$filename' $!";
        while(<$fh>) {
                print "$filename read line \n";
        }
}
print Dumper(\@files);

输出：

$VAR1 = [
          'file1',
          'file2',
          'file3'
        ];
file1.txt read line
file2.txt read line
file3.txt read line
$VAR1 = [
          undef,
          undef,
          undef
        ];

文件内容：

 cat file1.txt
asdfsdfs
 cat file2.txt
iasdfasdsf
 cat …