擅长:python、mysql、java
<p>在听写理解中使用<code>Counter</code>:</p>
<pre><code>from collections import Counter
data = {'key1': ['value1', 'value1', 'value2'], 'key2': ['value1'], 'key3': ['value3']}
out = {key: Counter(sublist) for key, sublist in data.items()}
print(out)
# {'key1': Counter({'value1': 2, 'value2': 1}),
# 'key2': Counter({'value1': 1}),
# 'key3': Counter({'value3': 1})}
</code></pre>