擅长:python、mysql、java
<p>您可以使用<code>unique()</code>和集合简化一点:</p>
<pre><code>warm_list = pd.read_csv(r'warmlist/' + 'warmlist.csv',
encoding="ISO-8859-1",
error_bad_lines=False)
warm_list_emails = set(warm_list['Email Address'].unique())
df = df.loc[df['Email Address'].isin(warm_list_emails), :]
</code></pre>