python中肯定兩個列表(list)之間是否爲子集關係

將列表(list)轉換成集合(set)做比較 >>> A = [1,2,3,4,5] >>> B = [1,2,3] >>> C = [1,2,3,4,5] >>> set(A) < set(B) #A是B的真子集？False False >>> set(A) > set(B) #B是A的真子集？True True >>> set(A) > set(C) #C是A的

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