将两个散列与键和值进行比较 [英] Comparing two hashes with the keys and values

问题描述

我想比较两个散列，首先看看它们是否存在于第一个散列中，是否存在于第二个散列中，如果是，则比较值并打印成功，否则如果值不相等，则打印键具有不平等的价值.我已经解决了一些现有的类似问题，但它让我感到困惑.希望我能得到帮助.

I want to compare two hashes, first to see if they key which is in the 1st hash, exists in the 2nd hash and if so compare the values and print a success else if the values are not equal, print the key which has the unequal value.I have gone through some existing similar questions but it confuses me.Hope i can get help.

推荐答案

以下内容应该可以帮助您了解:

The following should help you get an idea:

for ( keys %hash1 ) {
    unless ( exists $hash2{$_} ) {
        print "$_: not found in second hash\n";
        next;
    }

    if ( $hash1{$_} eq $hash2{$_} ) {
        print "$_: values are equal\n";
    }
    else {
        print "$_: values are not equal\n";
    }
}

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