擅长:python、mysql、java
<p>考虑到这些示例输入,请尝试以下操作:</p>
<pre><code>zip2pop = {99628: 104, 99629: 9242, 99638: 5524, 99618: 89, 99648: 6502}
zip2state = {99628: 'AK', 99629: 'AK', 99638: 'WA', 99618: 'WA', 99648: 'OR'}
state2pop = {}
for z, s in zip2state.items():
if s in state2pop:
state2pop[s] += zip2pop[z]
else:
state2pop[s] = zip2pop[z]
</code></pre>
<p>收益率:</p>
<pre><code>{'AK': 9346, 'WA': 5613, 'OR': 6502}
</code></pre>