擅长:python、mysql、java
<p>考虑到其他语言是可以接受的:</p>
<pre><code>#!/usr/bin/perl
use strict; use warnings;
use Algorithm::Combinatorics qw(permutations);
my $data = [ qw( hel lo bye ) ];
my $it = permutations($data);
while ( my $p = $it->next ) {
print @$p, "\n";
}
</code></pre>
<pre>hellobye
helbyelo
lohelbye
lobyehel
byehello
byelohel</pre>