擅长:python、mysql、java
<p>您可以使用<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.replace.html" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>A.replace(B.set_index('Code')['Value'])
</code></pre>
<hr/>
^{pr2}$
<p>收益率</p>
<pre><code> C1 C2 C3 C4 C5
0 'House' 'Bike' 'Lamp' 'House'
1 'Window' 'House' 'Car' 'Bike' 'House'
2 'House' 'Lamp'
3 'Bike' 'Car' 'Car'
</code></pre>