Go语言二维数组的传参方式

package main
import "fmt"
//n=7
func matrixChainOrder(p []int,m *[7][7]int,s *[7][7]int,n int){
    for i:=0;i<n;i++{
    m[i][i] = 0
    }
    for l:=2;l<n;l++{
        for i:=1;i<n-l+1;i++{
        j:=i+l-1
        m[i][j] = 10000000
        for k:=i;k<=j-1;k++{
            q:=m[i][k]+m[k+1][j]+p[i-1]*p[k]*p[j]
                if q<m[i][j]{
                m[i][j] = q
                s[i][j] = k
                }
            }
        }
    }
   // fmt.Println(m[1][6])
}
func main(){
    p:=[]int {30,35,15,5,10,20,15}
    var  m  [7][7]int
    var  s  [7][7]int
    matrixChainOrder(p,&m,&s,7)
    fmt.Println(m[1][6])
}

func myfun(a *[]int) {
    fmt.Print(a)
    //a[0] = 5
    (*a)[0] = 5
    //fmt.Print("here", a, "\n")
}
func test() {
    a1 := 1
    b1 := 2
    var a []*int = []*int{&a1, &b1}
    fmt.Print(a)
}
func main() {
    var a []int = []int{1, 2, 3, 4}
    myfun(&a)
    fmt.Print(a)
    test()
}