go-note/basic/class/duo.go

package main

import "fmt"

//多态
type Live interface {
	run()
}

type People struct {
	name string
}

type Animal struct {
	name string
}

func (p *People) run() {
	fmt.Printf("%v在跑步", p.name)
}

func (a *Animal) run() {
	fmt.Printf("%v在跑步", a.name)
}

func allrun(live Live) {
	live.run()
}

func main() {
	//接口不能实例化，只能对接口的结构体实例化
	peo := &People{"derek"}
	allrun(peo) //derek在跑步
	//多态，条件不同结果不同
	a := &Animal{"小狗"}
	allrun(a) //小狗在跑步
}