擅长:python、mysql、java
<p>对于初学者(如我)来说,最简单的方法是将集合中的Counter应用于字典的值:</p>
<pre class="lang-py prettyprint-override"><code>from collections import Counter
d=dict([(2,1),(3,1),(4,2),(5,1),(6,3),(7,2),(8,3)])
# d:(key,val) > dd:(val,freq_of_val_in_d)
dd=Counter(d.values())
print(dd)
</code></pre>
<p>提供:</p>
<pre><code>Counter({1: 3, 2: 2, 3: 2})
</code></pre>