Intersection set of golang slices

1. Intersection:

func intersect(slice1, slice2 []string) []string {
    
        // 取两个切片的交集
	m := make(map[string]int)
	n := make([]string,0)
	for _,v := range slice1 {
    
    
		m[v]++
	}
	for _, v := range slice2 {
    
    
		times,_ := m[v]
		if times == 1 {
    
    
			n = append(n, v)
		}
	}
	initlog.Info.Printf("Intersection is %s\n", n)
	return n

2. Difference set:

func difference(slice1, slice2 []string) []string {
    
       //取要校验的和已经校验过的差集，找出需要校验的切片IP（找出slice1中  slice2中没有的）
	m := make(map[string]int)
	n := make([]string,0)
	inter := intersect(slice1, slice2)
	for _, v := range inter {
    
    
		m[v]++
	}
	for _, value := range slice1 {
    
    
		if m[value] == 0 {
    
    
			n = append(n, value)
		}
	}

	for _, v := range slice2 {
    
    
		if m[v] == 0 {
    
    
			n = append(n, v)
		}
	}
	initlog.Info.Printf("Difference is %s\n", n)
	return n
}