/**
*装饰者模式
*/
abstract class Room {
abstract fun fitment()
}
class NewRoom : Room() {
override fun fitment() {
println("这是一间新房：装上电")
}
}
abstract class RoomDecorator(room: Room) : Room() {
private val mRoom = room
override fun fitment() {
mRoom.fitment()
}
}
class Bedroom(room: Room) : RoomDecorator(room) {
override fun fitment() {
super.fitment()
addBedding()
}
private fun addBedding() {
println("装修成卧室：添加卧具")
}
}
class Kitchen(room: Room) : RoomDecorator(room) {
override fun fitment() {
super.fitment()
addKitchenware()
}
private fun addKitchenware() {
println("装修成厨房：添加厨具")
}
}
fun main(args: Array) {
val newRoom: Room = NewRoom();//有一间新房间
val bedroom: RoomDecorator = Bedroom(newRoom);
bedroom.fitment();//装修成卧室
val kitchen: RoomDecorator = Kitchen(newRoom);
kitchen.fitment();//装修成厨房
}
