关于数据结构的Perl查询

Question

我目前使用以下哈希工作正常

%hash = ( 
    'env1' => 'server1:port1, server11:port11',
    'env2' => 'server2:port2, server22:port22'
) ;

但是,我真正想要做的是创建以下数据结构,这将使我更容易提取信息.以下显然不起作用.

(
  env1 => "server=server1, port=port1", "server=server11, port=port11",
  env2 => "server=server2, port=port2", "server=server22, port=port22"
) ;

想知道是否有人对创建符合我要求的数据结构有任何建议.

Answer 1

写这个:

%hash = (
  env1 => ["server=server1, port=port1", "server=server11, port=port11"],
  env2 => ["server=server2, port=port2", "server=server22, port=port22"]
) ;

然后访问这样的元素:

$hash{'env1'}->[0] == "server=server1, port=port1"
$hash{'env2'}->[1] == "server=server22, port=port22"

这是一个散列,其值是对匿名数组的引用.

但是当我看到你的数据时,我想也许有更好的存储方式:

%hash = (
  env1 => [{'server' => 'server1', 'port' => 'port1'}, {'server' => 'server11', 'port' => 'port11'}],
  env2 => [{'server' => 'server2', 'port' => 'port2'}, {'server' => 'server22', 'port' => 'port22'}]
) ;

然后访问这样的元素:

$hash{'env1'}->[0]->{'server'} == "server1"
$hash{'env2'}->[1]->{'port'} == "port22"