擅长:python、mysql、java
<p>您可以使用pd.merge从df_游戏中获得排名</p>
<pre><code>df_games.merge(df_players[['rank','player_id']],on='player_id',how='left')
</code></pre>
<p>您还可以从<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.merge.html" rel="nofollow noreferrer">pandas</a>的文档中查看更多详细信息</p>