擅长:python、mysql、java
<pre><code>print {k:{key:d[k][key] for key in to_check[k] if key in d[k]} for k in to_check}
</code></pre>
<p><strong>输出</strong></p>
<pre><code>{'ether': {'d': 'd2', 'v': 'v2', 'sv': 'sv2'}, 'host': {'d': 'd1', 'v': 'v1'}}
</code></pre>