我实现了一个车辆服务，负责为汽车和卡车等车辆提供服务:publicinterfaceIVehicleService{voidServiceVehicle(Vehiclevehicle);}publicclassCarService:IVehicleService{voidServiceVehicle(Vehiclevehicle){if(!(vehicleisCar))thrownewException("Thisserviceonlyservicescars")//logictoservicethecargoeshere}}我还有一个车辆服务工厂，负责根据传入工厂方法的车辆类型创建车