Python
python 统计list中元素重复的次数
2022/12/29 · 1 min read
方法一：通过 set 去重，再用 count 计数
names = ['a', 'b', 'c', 'd', 'c', 'a', 'c']
names_a = list(set(names))
{i: names.count(i) for i in names_a for i in names}方法二：通过 collections 来计数
import collections
countdic = collections.Counter(['a', 'b', 'c', 'd', 'c', 'a', 'c'])
print(countdic)