擅长:python、mysql、java
<p>首先,你的缩进不正确。你知道吗</p>
<pre><code>def findKeyForLargestValue(d):
for name in d:
for subName in d[name]:
d = d[name][subName]
if d > maxValue: #Look at the indentation here
maxKey = subName #And here
return maxKey
</code></pre>