from collections import Counter
s = 'A guy walks into a bar and asks for 1.4 root beers. The bartender says "Ill have to charge you extra, thats a root beer float". The guy says "In that case, better make it a double.'
frequencies = Counter(list(s))
new_data = sorted(frequencies.items())
print(new_data)
最简单的是^{} 。然后您可以对其项目进行排序:
您可以使用
collections.Counter
:输出:
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