擅长:python、mysql、java
<p>你试过那样的吗?你知道吗</p>
<pre><code>>>> common_elements = []
>>> a = [['date', 'title1', 'content1'], ['date2', 'title2', 'content2']]
>>> b = [['date3', 'title3', 'content3'], ['date2', 'title2', 'content2']]
>>> for element in a:
... if element in b:
... common_elements.append(element)
...
>>> common_elements
[['date2', 'title2', 'content2']]
</code></pre>