擅长:python、mysql、java
<p>在这种情况下,我会使用<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Index.intersection.html" rel="nofollow noreferrer">Index.intersection</a>:</p>
<p><strong>解决方案:</strong></p>
<pre><code>In [159]: A.loc[A.index.intersection(B.index)]
Out[159]:
time brand
user_id sku_id
489 37957 2016-02-01 07:43:04 8
37957 2016-02-01 07:43:02 8
27630 37957 2016-02-01 07:43:14 8
</code></pre>
<p><a href="http://pandas.pydata.org/pandas-docs/stable/merging.html" rel="nofollow noreferrer">Pandas documentation: Merge, join, and concatenate</a></p>