golang 多态和c++的一点区别

以下代码在go1.5验证通过

package main

import (

    "fmt"

)

type Person struct {

    name string

    age  int

    tel  string

}

type Student struct {

    Person // 有另一个字段

    school string

}

func (p *Person) Print() {

    fmt.Printf("Print\n")

    p.Hello() //指向person的hello

}

//在person上面定义了一个传值的method

func (p *Person) Hello() {

    p.tel = "186"

    fmt.Printf("Person My name is %s, and my tel number is %s\n", p.name, p.tel)

}

//多态

func (p *Student) Hello() {

    p.tel = "0117"

    fmt.Printf("student My name is %s, and my tel number is %s\n", p.name, p.tel)

}

func main() {

    anna := new(Student)

    anna.Person.name = "jim"

    anna.tel = "12345678"

    anna.Hello()  //student My name is jim, and my tel number is 0117

    anna.Person.Hello()  //Person My name is jim, and my tel number is 186

    anna.Print()  //Print
                  //Person My name is jim, and my tel number is 186 此处在c++会调用Student的Hello接口

}