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13decorator.go
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13decorator.go
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/**
@date: 2021/5/28
**/
package design
import "fmt"
/**
* @Description: 飞行器接口,有fly函数
*/
type Aircraft interface {
fly()
landing()
}
/**
* @Description: 直升机类,拥有正常飞行、降落功能
*/
type Helicopter struct {
}
func (h *Helicopter) fly() {
fmt.Println("我是普通直升机")
}
func (h *Helicopter) landing() {
fmt.Println("我有降落功能")
}
/**
* @Description: 武装直升机
*/
type WeaponAircraft struct {
Aircraft
}
/**
* @Description: 给直升机增加武装功能
* @receiver a
*/
func (a *WeaponAircraft) fly() {
a.Aircraft.fly()
fmt.Println("增加武装功能")
}
/**
* @Description: 救援直升机
*/
type RescueAircraft struct {
Aircraft
}
/**
* @Description: 给直升机增加救援功能
* @receiver r
*/
func (r *RescueAircraft) fly() {
r.Aircraft.fly()
fmt.Println("增加救援功能")
}
func decoratorMain() {
//普通直升机
fmt.Println("------------普通直升机")
helicopter := &Helicopter{}
helicopter.fly()
helicopter.landing()
//武装直升机
fmt.Println("------------武装直升机")
weaponAircraft := &WeaponAircraft{
Aircraft: helicopter,
}
weaponAircraft.fly()
//救援直升机
fmt.Println("------------救援直升机")
rescueAircraft := &RescueAircraft{
Aircraft: helicopter,
}
rescueAircraft.fly()
//武装救援直升机
fmt.Println("------------武装救援直升机")
weaponRescueAircraft := &RescueAircraft{
Aircraft: weaponAircraft,
}
weaponRescueAircraft.fly()
}