[Go] Secondary pointer

package main

import "fmt"

func main() {
    
    
	var x = 123
	var mptr *int = &x

	mmptr := &mptr
	fmt.Println(mmptr)
	fmt.Printf("mmptr的类型是%T\n",mmptr)

	fmt.Println(*mptr)
	fmt.Println(**mmptr)
	fmt.Println(*(*mmptr))

}

输出：
//0xc000148018
//mmptr的类型是**int
//123
//123
//123