擅长:python、mysql、java
<p>对于我来说,通过<a href="http://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.xs.html" rel="nofollow noreferrer">^{<cd1>}</a>和<a href="http://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.join.html" rel="nofollow noreferrer">^{<cd2>}</a>进行过滤:</p>
<pre><code>df22 = df2.xs(('0M','field_v1'), level=[2,3])
new_df1 = df1.join(df22)
</code></pre>