pointer-example-003

func main() {
  var x = 100
  var p *int = &x
  *p = 200
}

 x: 100
&x: 0xc0000b6020
*p: 100
 p: 0xc0000b6020

 x: 200
&x: 0xc0000b6020
*p: 200
 p: 0xc0000b6020