from collections import Counter a = [1, 2, 3, 1, 1, 2] result = Counter(a) print result
输出：
{1: 3, 2: 2, 3: 1}
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from collections import Counter a = [1, 2, 3, 1, 1, 2] result = Counter(a) print result
输出：
{1: 3, 2: 2, 3: 1}
相关文章：