將數組存儲爲地圖值問題

Question

我想@arr直接包含城市名稱。我打印時想要$arr[0]爲c1。 代碼有什麼問題？

my $state="Illinois"; 

push @{$mstates{$state}}, "c1"; 

push @{$mstates{$state}}, "c2"; 


my @arr=$mstates{$state}; 

Answer 1

也許你想

my @arr=@{$mstates{$state}}; 

Answer 2

不喜歡它，

my @arr=@{$mstates{$state}}; 

即

use strict; 
use warnings; 
use Data::Dumper; 
my $state="Illinois"; 
my %mstates; 
push @{$mstates{$state}}, "c1"; 
push @{$mstates{$state}}, "c2"; 
my @arr=@{$mstates{$state}}; 
print Dumper(\@arr); 

輸出：

$VAR1 = [ 
      'c1', 
      'c2' 
     ];