擅长:python、mysql、java
<p>您可以<code>concat</code>和<code>drop_duplicates</code>:</p>
<pre><code>cols=prev_df.columns.intersection(df.columns).tolist()
pd.concat([df, pd.concat([prev_df]*2)]).drop_duplicates(cols, keep=False)
</code></pre>
<hr/>
<pre><code> Time FO_SYMBOL TOTAL_VOLUME
7 14:55:12 BHEL 8114.0
8 14:55:12 BHEL 8120.0
</code></pre>