擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/2/library/sets.html" rel="nofollow">sets</a></p>
<pre><code>In [1]: list1=[1,2,3,4,5,6,7,8,9]
In [2]: list2=[1,2,3,10,11,12,13]
In [3]: list1=set(list1)
In [4]: list1.intersection(list2)
Out[4]: {1, 2, 3}
</code></pre>