go 數組隨機打亂，從數組中隨機取出多個不重復的方法總結

//origin原數組 count 隨機取出的個數，最終返回一個count容量的目標數組

func MicsSlice(origin []int64, count int) []int64 {
   tmpOrigin := make([]int64, len(origin))
   copy(tmpOrigin, origin)
//一定要seed
   rand.Seed(time.Now().Unix())
   rand.Shuffle(len(tmpOrigin), func(i int, j int) {
      tmpOrigin[i], tmpOrigin[j] = tmpOrigin[j], tmpOrigin[i]
   })

   result :=make([]int64,0,count)
   for index, value := range tmpOrigin {
      if index==count{
         break
      }
      result = append(result,value)
   }
   return result
}

func main() {

dest:=MicsSlice([]int64{1,2,3,4,5,6,7},2)

fmt.Println("result....",dest)

}