golang 数组去重

func main() {
   t1 :=[]string{"hello", "", "world", "yes", "hello", "nihao", "shijie", "hello", "yes", "nihao","good","adsfasdf","asdfasdf","dddd","ssss"}
   t2 := RemoveDuplicate(&t1)
   (t2)
   
   (t1)
   t4:=RemoveDuplicatesAndEmpty(t1)
   (t4)
   
   (t1)
   (Duplicate(t1))

}


func RemoveDuplicate(list *[]string) []string {
   var x []string = []string{}
   for _, i := range *list {
      if len(x) == 0 {
         x = append(x, i)
      } else {
         for k, v := range x {
            if i == v {
               break
            }
            if k == len(x)-1 {
               x = append(x, i)
            }
         }
      }
   }
   return x
}
func RemoveDuplicatesAndEmpty(a []string) (ret []string){
   a_len := len(a)
   for i:=0; i < a_len; i++{
      if (i > 0 && a[i-1] == a[i]) || len(a[i])==0{
         continue;
      }
      ret = append(ret, a[i])
   }
   return
}
func Duplicate(a interface{}) (ret []interface{}) {
   va := (a)
   for i := 0; i < (); i++ {
      if i > 0 && ((i-1).Interface(), (i).Interface()) {
         continue
      }
      ret = append(ret, (i).Interface())
   }
   return ret
}