设计模式（3）

class Car{
        constructor(name,number){
            this.name = name ,
            this.number = number
        }
    }
     class KuaiCar extends Car{
        constructor(name,number){
            super(name,number)
            this.price = 1
        }
    }
    class ZhuanCar extends Car{
        constructor(name,number){
            super(name,number)
            this.price = 2
        }
    }
    class Trip {
        constructor(car){
            this.car = car
        }
        start(){
            console.log(`行程开始,名称:${this.car.name},车牌号:${this.car.number}`)
        }
        end(){
            console.log(`行程结束,价格为:${this.car.price * 5} `)
        }
    }
    // test
    const zhauncar = new ZhuanCar('保时捷',918)
    const mancar = new KuaiCar('比亚迪',33)
    const trip = new Trip(mancar)
    trip.start()
    trip.end()
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