golang类之间方法调用

package main

import "fmt"
import "reflect"

type C struct {
  A string
}
func (c *C) Read() error {
  fmt.Println("C.Read" )
  return nil 
}
type D struct {
  B string
}

func (d *D) Read() string {
  fmt.Println("D.Read" )
  return d.B 
}
func (c *C) ReadOther(inf interface{}) error {
  ref := reflect.ValueOf(inf)
  method := ref.MethodByName("Read")
  if method.IsValid() {
    r := method.Call(make([]reflect.Value,0))
    fmt.Println(r[0].String())
  }
   
  return nil 
}

func main() {
  c := &C{A:"iii"}
  d := &D{B:"ddd"}
  c.ReadOther(d)
}