擅长:python、mysql、java
<pre><code>track = [dicto[index].get(value,None) for index,value in enumerate(listo)]
track = [item for item in track if item is not None]
print(track)
# [4, 3, 1]
</code></pre>
<p>这只检查特定索引处的键值。
没有列表理解</p>
<pre><code>track = []
for index,value in enumerate(listo):
val = dicto[index].get(value,None)
if val is not None:
track.append(val)
print(track)
</code></pre>