擅长:python、mysql、java
<p>您可以尝试以下方法:</p>
<pre><code>DF2.loc[DF2['Surname']==DF1['Surname'],['FamilySurvivalRate']] = DF1['FamilySurvivalRate']
</code></pre>
<p><a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.loc.html" rel="nofollow noreferrer">https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.loc.html</a></p>