擅长:python、mysql、java
<p>像这样的方法会奏效:</p>
<pre><code># Starting from two empty dictionaries
newdict_valueA, newdict_valueB = {}, {}
# Iterate over the key/value pairs of the data
for key, value in thedata.items():
# assign to the same key of each result dictionary a list of
# the valueA for each B item in the value of the original dictionary
newdict_valueA[key] = [item.valueA for item in value]
newdict_valueB[key] = [item.valueB for item in value]
</code></pre>
<p>新的价值观:</p>
<pre><code>{'a': [1, 2], 'b': [3, 4]}
</code></pre>
<p>新dict\u valueB:</p>
<pre><code>{'a': [0.1, 0.2], 'b': [0.3, 0.4]}
</code></pre>