// 多态
// 示例
package main
import (
"fmt"
)
type notifier interface {
notify()
}
type user struct{
name string
email string
}
func (u *user) notify(){
fmt.Printf("Sending user email to %s<%s>
", u.name, u.email)
}
type admin struct{
name string
email string
}
func (a *admin) notify(){
fmt.Printf("Sending admin email to %s<%s>
", a.name, a.email)
}
// 多态函数,不同实例类型调用相同方法返回不同实例的结果
func sendNotification(n notifier){
n.notify()
}
func main(){
bill := user{"Bill", "bill@email.com"}
sendNotification(&bill) // 传地址
lisa := admin{"Lisa", "lisa@email.com"}
sendNotification(&lisa) // 传地址
}