擅长:python、mysql、java
<p>只需使用<code>drop_duplicates</code>列<code>['market', 'company', 'price']</code>:</p>
<pre><code>>>> df.drop_duplicates(['market', 'company', 'price'])
market company price volume
0 LA EK 206.0 2
1 LA SQ 206.0 1
3 LA EK 36.0 3
5 LA SQ 36.0 1
</code></pre>