擅长:python、mysql、java
<p>您可以使用内置的<code>.keys()</code>和<code>.values()</code>分别直接获取键和值。在</p>
<p><strong>代码:</strong></p>
<pre><code>dict = {'A': {'B': ['a', 'b', 'c'], 'C': ['d', 'c', 'e']}, 'D': {'B': ['f', 'g', 'h'], 'E': ['i', 'j', 'c']}}
listOfKeys = []
for i in dict.keys():
for j in dict[i].values():
if 'c' in j:
if i not in listOfKeys:
listOfKeys.append(i)
print(listOfKeys)
</code></pre>
<p><strong>输出:</strong></p>
^{pr2}$