var array []int = make([]int, size_value)

package main
import "fmt"
func main() {
       var size_value int
       fmt.Print("size input >>> ")
       fmt.Scanf("%d", &size_value)
       var array []int = make([]int, size_value)

       for i:=0; i<len(array); i++ {
              array[i] = i*3
       }

       for index, value := range array {
              fmt.Printf("index [%2d] | value [%2d] \n", index, value)
       }
}

/home/kim/language/go/bin/go run /home/kim/PycharmProjects/untitled1/stu27_3.go
size input >>> 10
index [ 0] | value [ 0]
index [ 1] | value [ 3]
index [ 2] | value [ 6]
index [ 3] | value [ 9]
index [ 4] | value [12]
index [ 5] | value [15]
index [ 6] | value [18]
index [ 7] | value [21]
index [ 8] | value [24]
index [ 9] | value [27]