擅长:python、mysql、java
<p>您可以遍历<code>c.most_common()</code>以获得所需顺序的项。另请参见<a href="http://docs.python.org/library/collections.html#collections.Counter.most_common" rel="noreferrer">documentation of ^{<cd2>}</a>。</p>
<p>示例:</p>
<pre><code>>>> c = collections.Counter(a=1, b=999)
>>> c.most_common()
[('b', 999), ('a', 1)]
</code></pre>