package main

import (

	"fmt"

)

type Dog struct {

	Name string

	Age int

}

func (d *Dog)bite()  {

	fmt.Printf("%s要咬你了\n", d.Name)

}

type PoliceDog struct {

	//一行代码拥有父类的全部成员（属性+方法）

	Dog

	//扩展出新的属性

	Skill string

}

//扩展出新的方法

func (pd *PoliceDog)DoPoliceJob(){

	fmt.Printf("%s正在执行警务工作：%s\n",pd.Name,pd.Skill)

}

//重写父类方法(overwrite)

func (d *PoliceDog)bite()  {

	fmt.Printf("%s要把你大卸八块了\n", d.Name)

}

func main21() {

	pd := PoliceDog{}

	//通过子类对象访问父类成员

	pd.Name = "战狼"

	pd.bite()

	//访问子类独有成员

	pd.Skill = "徒手接RPG"

	pd.DoPoliceJob()

	//访问子类复写了的父类方法

	pd.bite()

}

func main() {

	//pd := PoliceDog{}

	//pd := PoliceDog{Dog{Name: "战狼"}, "徒手接炮弹"}

	//pd := PoliceDog{Dog: Dog{Name:"战狼"}}

	//pd := PoliceDog{Skill: "徒手接炮弹"}

	//pd := new(PoliceDog)

	pd := NewPoliceDog("战狼", 40, "徒手接炮弹")

	fmt.Println(pd.Name,pd.Age,pd.Skill)

	pd.bite()

	pd.DoPoliceJob()

}

func NewPoliceDog(name string,age int,skill string) *PoliceDog {

	//pd:=new(PoliceDog)

	//pd.Name=name

	//pd.Age=age

	//pd.Skill=skill

	pd := &PoliceDog{Dog{name, age}, skill}

	return pd

}