擅长:python、mysql、java
<p>使用<code>sorted()</code>函数中的<a href="https://www.python.org/dev/peps/pep-0289/" rel="nofollow noreferrer">generator expression</a>和适当的键函数:</p>
<pre><code>In [22]: from operator import itemgetter
In [23]: sorted(((k, v['likes']) for k, v in tags.items()), key=itemgetter(1), reverse=True)
Out[23]: [('dii', 151), ('djiphantom3', 127), ('pinoyako', 119)]
</code></pre>