Python统计list中每个元素出现的个数

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from collections import Counter   n = ['a','b','a','c','d','a'] # 统计list中每个元素出现的个数 eleCounts = Counter(n) # most_common()返回出现次数排名前n个的元素，不输入时默认按照出现次数对所有数据排序 top_one = eleCounts.most_common(2)   print(top_one) [('a', 3), ('b', 1)]