擅长:python、mysql、java
<p>您需要先对两列进行排序:</p>
<pre><code>df1[['source','target']] = df1[['source','target']].apply(sorted,axis=1)
print (df1)
source target metric
0 acc1.yyy acx1.xxx 10000
1 acc1.yyy acx1.xxx 10000
df2 = df1.drop_duplicates(subset=['source','target'])
print (df2)
source target metric
0 acc1.yyy acx1.xxx 10000
</code></pre>
<p>编辑:</p>
<p>列<code>source</code>似乎需要更改-删除最后3个字符:</p>
^{pr2}$