Go语言基础模板设计模式示例详解

package main
import "fmt"

type Itravel interface {
	Starting() //起点
	Travel()   //出行方式
	End()      //终点
}
//定义父类
type Persion struct {
	Name    string //姓名
	Itravel Itravel  //出行方式接口
}
func (persion *Persion) SetName(name string) {
	persion.Name = name
}
func (persion Persion) Starting() {
	persion.Itravel.Starting()
}
func (persion Persion) Travel() {
	persion.Itravel.Travel()
}
func (persion Persion) End() {
	persion.Itravel.End()
}
//算法骨架
func (persion Persion) Start() {
	if persion.Itravel == nil {
		fmt.Println("Itravel is nil")
		return
	}
	fmt.Printf("%s", persion.Name)	
	persion.Starting()
	persion.Travel()
	persion.End()
	fmt.Println("\n")
}
//具体类：张三
type ZhangSan struct {
	Persion //匿名字段实现继承
}
func NewZhangSan() *ZhangSan {
	c := new(ZhangSan)
	c.Persion = Persion{Itravel: c}
	return c
}
func (_ ZhangSan) Starting() {
	fmt.Printf("从%s出发", "北京")
}

func (_ ZhangSan) Travel() {
	fmt.Printf(" %s", "火车")
}
func (_ ZhangSan) End() {
	fmt.Printf(" %s", "到达上海")
}
//具体类：李四
type LiSi struct {
	Persion
}
func (_ LiSi) Starting() {
	fmt.Printf("从%s出发", "广州")
}
func (_ LiSi) Travel() {
	fmt.Printf(" %s", "坐飞机")
}
func (_ LiSi) End() {
	fmt.Printf(" %s", "到达重庆")
}
func main() {
	//张三
	zhangsan := NewZhangSan()
	zhangsan.SetName("张三")
	zhangsan.Start()
	persion := &Persion{}
	persion.SetName("张三")
	persion.Itravel = ZhangSan{}
	persion.Start()
	//李四
	persion.SetName("李四")
	persion.Itravel = &LiSi{}
	persion.Start()
	lisi := LiSi{}
	lisi.Itravel = lisi
	lisi.SetName("李四")
	lisi.Start()
}