小编Jon*_*Sr.的帖子

my %myHash = (
    key1 => {
        test1 => 1,
        test2 => 2,
    },
    key2 => {
        test1 => 3,
        test2 => 4,
    },
);

my $myRef = $myHash{ "key". ((~~keys %myHash) + 1) } //= {
    test1 => 5,
    test2 => 6,
};    

幽默我,并假设上述实际上是实用的.我如何通过引用删除这个新创建的密钥？

delete $myRef;

显然不起作用

编辑: 所以从zostay我有以下...

sub deleteRef {
    my ( $hash_var, $hash_ref ) = @_;

    for ( keys %$hash_var ) {
        delete $hash_var->{$_} if ($hash_var->{$_} == $hash_ref);
    }
}

用法:

deleteRef(\%myHash, $myRef);

怎么样？还是不推荐？