擅长:python、mysql、java
<p>目前还不清楚“list[pointer]”到底是什么意思。不过,考虑一下。</p>
<pre><code>from collections import defaultdict
keyValues= defaultdict(list)
targetKeys= # some list of keys
for line in fin:
key, value = map( int, line.split())
if key in targetKeys:
keyValues[key].append( value )
</code></pre>