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#!/usr/bin/perl $var = 10; # $r 引用 $var 标量 $r = \$var; # 输出本地存储的 $r 的变量值 print "$var 为 : ", $$r, "\n"; @var = (1, 2, 3); # $r 引用 @var 数组 $r = \@var; # 输出本地存储的 $r 的变量值 print "@var 为: ", @$r, "\n"; %var = ('key1' => 10, 'key2' => 20); # $r 引用 %var 数组 $r = \%var; # 输出本地存储的 $r 的变量值 print "%var 为 : ", %$r, "\n";
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