perl 监控数据库用到的数据结构

[root@yun1 test]# cat a1.pl 
my $h={'192.168.11.187'=>['root','1234567'],
       '192.168.5.7' =>['root','cdsxxxkfdsfsdf'],
       '192.168.5.3'=>['root','dxxxxxfa']};

foreach $key (keys %{$h}) {
     print "\$key is $key\n";
     print $h->{$key}->[0];
     print "\n";
     print $h->{$key}->[1];
     print "\n";
     print "------------------\n";

     };
[root@yun1 test]# perl a1.pl 
$key is 192.168.5.7
root
cdscccc
------------------
$key is 192.168.11.187
root
1234567
------------------
$key is 192.168.5.3
root
tttt
------------------