擅长:python、mysql、java
<p>请尝试:</p>
<pre><code>df.loc[df['Name'].isin(df['Name'].loc[ (df['Period'] == 'PRE' ) & (df['Amount'] > 10)])]
</code></pre>
<p>印刷品:</p>
<pre><code> Name Letter Period Amount
0 123 H PRE 11
1 123 H DURING 5
2 123 H POST 100
</code></pre>