删除切片重复内容

ints := []int{9, 1, 9, 4, 5, 5, 2, 3, 3, 2}

func UniqueInts(ints []int) []int {

	ms := map[int]int{}
	for _, i := range ints {
		ms[i] = i
	}

	var result []int
	for _, s := range ms {
		result = append(result, s)
	}
	return result
}

func UniqueInts(slice []int) []int {

    seen := map[int]bool{} // == make(map[int]bool)

    unique := []int{}      // == make([]int, 0)

    for _, x := range slice {
        //查找map中的元素，如果不是重复的int则添加到map中
        if _, found := seen[x]; !found {
          //把元素添加到新的切片中，利用了map的特性，保证了不重复
            unique = append(unique, x)
            seen[x] = true
        }

    }
    return unique
}