擅长:python、mysql、java
<p>IIUC</p>
<p>您可以使用布尔测试和<code>isin</code>在包含<code>_Lh</code>的组中进行筛选</p>
<pre><code>m = df[df['col2'].str.contains('_Lh')]['col1']
df[df['col1'].isin(m)].groupby('col1')...
</code></pre>
<hr/>
<pre><code>print(df[df['col1'].isin(m)])
col1 col2
0 G1 OP2
1 G1 OP0
2 G1 OPP
3 G1 OPL_Lh
8 G4 TUI
9 G4 TYUI
10 G4 TR_Lh
</code></pre>