golang数组去重,利用map的实现

var strMap make(map[string]string)
strSlice := []string {"slice","int","string","int","boolean","string"}
for _,v:= range strSlice{
    strMap[value] = v
}
//strMap为：{"slice"："slice","int"："int","string"："string","boolean"：boolean"}
//如果想将map转换为slice，可利用数组的append函数
var secondStr []string
for _,value := range strMap{
    secondStr = append(secondStr ,value)
}
//secondStr为：{"slice","int","string","boolean"}

func removeDuplicates(nums []int) int {
    //如果是空切片，那就返回0
    if len(nums) == 0 {
        return 0
    }
    //用两个标记来比较相邻位置的值
    //当一样的话，那就不管继续
    //当不一样的时候，就把right指向的值赋值给left下一位
    left, right := 0, 1
    for ; right < len(nums); right++ {
        if nums[left] == nums[right] {
            continue
        }
        left++
        nums[left] = nums[right]
    }
    fmt.Println(nums[:left+1])
    return left + 1
}