如何在Perl中引用特定的哈希值?
发布时间:2020-12-15 21:44:30 所属栏目:大数据 来源:网络整理
导读:如何在特定哈希键中创建对值的引用.我尝试了以下但是$$foo是空的.任何帮助深表感谢. $hash-{1} = "one";$hash-{2} = "two";$hash-{3} = "three";$foo = ${$hash-{1}};$hash-{1} = "ONE";#I want "MONEY: ONE";print "MONEY: $$foon"; 解决方法 use strict;
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如何在特定哈希键中创建对值的引用.我尝试了以下但是$$foo是空的.任何帮助深表感谢.
$hash->{1} = "one";
$hash->{2} = "two";
$hash->{3} = "three";
$foo = ${$hash->{1}};
$hash->{1} = "ONE";
#I want "MONEY: ONE";
print "MONEY: $$foon";
解决方法use strict;
use warnings;
my $hash;
$hash->{1} = "one";
$hash->{2} = "two";
$hash->{3} = "three";
my $foo = $hash->{1};
$hash->{1} = "ONE";
print "MONEY: $$foon";
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