个人而言，我更喜欢 File :: Find :: Rule ，因为这不需要你创建回调例程。

  use strict; 
使用Data :: Dumper; 
使用File :: Find :: Rule; 

 my $ dir = shift; 
 my $ level = shift // 2; 
 $ b $ my @files = File :: Find :: Rule-> file（）
  - > name（*。txt）
  - > maxdepth（$级别）
  - > in（$ dir）; 

打印Dumper（\ @ files）; 
 

或者创建一个迭代器：

- > name（*。txt）
- > maxdepth $ level）
- > start（$ dir）; （$ my $ file = $ ffr_obj-> match（））
{
print$ file \\\

}
$ b

I'm a bit confused from File::Find documentation... What is the equivalent to $ find my_dir -maxdepth 2 -name "*.txt"?

Personally, I prefer File::Find::Rule as this doesn't need you to create callback routines.

use strict;
use Data::Dumper;
use File::Find::Rule;

my $dir = shift;
my $level = shift // 2;

my @files = File::Find::Rule->file()
                            ->name("*.txt")
                            ->maxdepth($level)
                            ->in($dir);

print Dumper(\@files);

Or alternatively create an iterator:

my $ffr_obj = File::Find::Rule->file()
                              ->name("*.txt")
                              ->maxdepth($level)
                              ->start($dir);

while (my $file = $ffr_obj->match())
{
    print "$file\n"
}