Java 中的 List 和 Set 集合类型详解

list and set

  • 列表去重

a = [1,2,3,3]
list = list(set(a))
  • 集合的运算

a = {1,2,3,3}
b = {3,4,5}
#交集 {3}
a.intersection(b)
#并集 {1, 2, 3, 4, 5}
a.union(b)

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