Python集合

list_1 = set([1, 5, 3, 6, 8])

list_2 = set([2, 4, 5, 8, 6])

#交集
# print(list_1.intersection(list_2))       &
# {8, 5, 6}

#并集
# print(list_1.union(list_2))     |
# {1, 2, 3, 4, 5, 6, 8}

#差集(in list_1 not in list_2)     -
# print(list_1.difference(list_2))
# {1, 3}

#子集
# print(list_1.issubset(list_2))
# False

#父集
# print(list_1.issuperset(list_2))
# False

#对称差集(去重)              ^
# print(list_1.symmetric_difference(list_2))
# {1, 2, 3, 4}