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@author jackzhenguo
@desc 
@date 2019/4/10

69 列表检查重复

def has_duplicates(lst):
    return len(lst) == len(set(lst))


x = [1, 1, 2, 2, 3, 2, 3, 4, 5, 6]
y = [1, 2, 3, 4, 5]
has_duplicates(x)  # False
has_duplicates(y)  # True
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