golang中的类和接口的使用

type People struct {
	//..
}

func (p *People) SayHi() {
	fmt.Println("************************* say hi !!")
}

func (this *LoginController) Get() {
	p := new(People)
	p.SayHi()

	this.TplName = "login.html"
}

type People struct {
	//..
}

func (p *People) SayHi() {
	fmt.Println("************************* say hi !!")
}

type IPeople interface {
	SayHi()
}

func (this *LoginController) Get() {
	var p IPeople = new(People)
	p.SayHi()

	this.TplName = "login.html"
}