package main

func main(){

	var arr1 = []int{}

	a0 := reflect.ValueOf(&arr1).Elem()

	e0 := make([]reflect.Value,0)
	e0 = append(e0,reflect.ValueOf(100))
	e0 = append(e0,reflect.ValueOf(200))
	e0 = append(e0,reflect.ValueOf(300))
	e0 = append(e0,reflect.ValueOf(400))
	val_arr1 := reflect.Append(a0,e0...)

	a0.Set(val_arr1)
	fmt.Println(val_arr1)
	fmt.Println(cap(e0))
	fmt.Println(cap(arr1))

}