gistfile1.txt

package main

import (
	"fmt"
)

type Person struct {
	name string
	age  int
}

func main() {
	p := &Person{"test", 11}
	// how to build an interface{} object from person struct?
	// what is the cost? the field need copy?
	var v interface{}
	v = p
	p.age=13
	l := v.(*Person)
	l.age=17
	fmt.Println(v,p,l)
}

//Output
&{test 17} &{test 17} &{test 17}




///////////////
package main

import (
	"fmt"
)

type Person struct {
	name string
	age  int
}

func main() {
	p := Person{"test", 11}
	// how to build an interface{} object from person struct?
	// what is the cost? the field need copy?
	var v interface{}
	v = p
	p.age=13
	l := v.(Person)
	l.age=17
	fmt.Println(v,p,l)
}


//Output
{test 11} {test 13} {test 17}