擅长:python、mysql、java
<p>应该是这样的</p>
<pre><code>df['PerSec'] = df.groupby([['SourceIP', 'SourcePort', 'DestinationIP', 'DestinationPort', 'Protocol']])['SourceIP', 'SourcePort', 'DestinationIP', 'DestinationPort', 'Protocol'].transform('PerSec')
</code></pre>