package main
import "fmt"
func main(){
        //第一种：
        var arr1 [3]int = [3]int{3,6,9}
        fmt.Println(arr1)
        //第二种：
        var arr2 = [3]int{1,4,7}
        fmt.Println(arr2)
        //第三种：
        var arr3 = [...]int{4,5,6,7}
        fmt.Println(arr3)
        //第四种：
        var arr4 = [...]int{2:66,0:33,1:99,3:88}
        fmt.Println(arr4)
}