5 lines
179 B
Python
5 lines
179 B
Python
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A = {1, 2}
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B = {1, 2, 3, 4}
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print(A.issubset(B)) # A是B的子集
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print(B.issuperset(A)) # B是A的超级
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print(A.isdisjoint(B)) # A 和 B 有交集；若无交集则返回 True
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