擅长:python、mysql、java
<p>您可以使用<a href="https://docs.python.org/3/library/collections.html#collections.Counter" rel="nofollow noreferrer">collections.Counter</a>:</p>
<pre><code>from collections import Counter
data = [['root', '151.62.163.222'], ['tergul', '151.62.163.222'], ['root', '201.179.14.4'], ['root', '201.179.14.4'],
['admin', '201.179.14.4'], ['admin', '201.179.14.4'], ['lemming', '10.0.0.202'], ['lemming', '10.0.0.202'],
['lemming', '10.0.0.202'], ['lemming', '10.0.0.202'], ['lemming', '10.0.0.202'], ['lemming', '10.0.0.202']]
result = [list(item) for item in Counter(address for _, address in data).items()]
print(result)
</code></pre>
<p><strong>输出</strong></p>
^{pr2}$