擅长:python、mysql、java
<p>试试这个</p>
<pre><code>dic = {'key1':{'subkey1':'entry1', 'name':'entry2'},
'key2':{'subkey3':'entry3', 'name':'entry4'},
'key3':{'subkey5':'entry5', 'name':'entry6'}}
print(''.join(x for x, y in dic.items() if 'entry4' in y.values()))
</code></pre>
<p>输出</p>
<pre><code>key2
</code></pre>