继承练习之汽车类—C++

/*
功能：汽车类
日期：2013-11-25
*/
#include <iostream>
using namespace std;
/**********************************************************/
//汽车类
class Vehicle
{
public:
	Vehicle(int wheels=0,double weight=0):
	  m_iWheels(wheels),m_iWeight(weight){};
	  int getWheels()const;                              //获取车轮个数
	  double getWeight()const;                          //获取车重
protected:
	int m_iWheels;                                     //车轮个数
	double m_iWeight;                                 //车重
};
//引擎类
class Engine
{
public:
	Engine(double emissions=0):
	  m_iEmissions(emissions){};
	void setEmissions(double emissons);                //设置排量信息
    double getEmissions()const;                       //获取排量信息
private:
  double m_iEmissions;                               //排量信息
};
//小车类
class Car : public Vehicle,private Engine
{
public:
	Car(int wheels,double weight);
	void setPassengerload(int passenger_load);                 //设置车载人数
	int getPassengerload()const;                              //获取车载人数
	void setEmissions(double emissons);                      //设置排量信息
	double getEmissions()const;                             //获取排量信息
private:
	int m_ipassenger_load;                                 //车载人数
};
//卡车类
class Truck :protected Vehicle,private Engine
{
public:
	Truck(int wheels,double weight,double emissions);
	void setPassengerload(int passenger_load);          //设置车载人数
	int getPassengerload()const;                       //获取车载人数
	void setPayload(double payload);                  //设置载重量
	double getPayload()const;                        //获取载重量
	int getWheels()const;                           //获取车轮个数
	double getWeight()const;                       //获取车重
	double getEmissions()const;                   //获取排量信息
private:
	 int m_iPassenger_load;                     //车载人数
	 double m_iPayload;                        //载重量
};
/**********************************************************/
//汽车类
int Vehicle::getWheels()const
{
	return m_iWheels;
}
double Vehicle::getWeight()const
{
	return m_iWeight;
}

//引擎类函数
void Engine::setEmissions(double emissons)
{
	m_iEmissions = emissons;
}
double Engine::getEmissions()const
{
	return m_iEmissions;
}
//小车类函数
Car::Car(int wheels=0,double weight=0):Vehicle(wheels,weight)
{

}
void Car::setPassengerload(int passenger_load)
{
	m_ipassenger_load = passenger_load;
}
int Car::getPassengerload()const
{
	return m_ipassenger_load;
}
void Car::setEmissions(double emissons)
{
	Engine::setEmissions(emissons);
}
double Car::getEmissions()const
{
	return Engine::getEmissions();
}
//卡车类
Truck::Truck(int wheels=0,double weight=0,double emissions=0):Vehicle(wheels,weight)
{
    Engine::setEmissions(emissions);
}
void Truck::setPassengerload(int passenger_load)
{
	m_iPassenger_load = passenger_load;
}
int Truck::getPassengerload()const
{
	return m_iPassenger_load;
}
void Truck::setPayload(double payload)
{
	m_iPayload = payload;
}
double Truck::getPayload()const
{
	return m_iPayload;
}
int Truck::getWheels()const
{
	return m_iWheels;
}
double Truck::getWeight()const
{
	return m_iWeight;
}
double Truck::getEmissions()const
{
    return Engine::getEmissions();
}
/**********************************************************/
int main(void)
{

    Car c1(4,300);
	c1.setPassengerload(5);
	c1.setEmissions(200);
	Truck T1(6,1000,300);
	T1.setPassengerload(2);
	T1.setPayload(900);

	cout<<"c1的信息为:"<<endl<<"车轮个数："<<c1.getWheels()<<" "<<"车重："<<c1.getWeight()<<endl;
	cout<<"排量信息："<<c1.getEmissions()<<" "<<"车载人数："<<c1.getPassengerload()<<endl<<endl;
    cout<<"T1的信息为:"<<endl<<"车轮个数："<<T1.getWheels()<<" "<<"车重："<<T1.getWeight()<<endl;
	cout<<"排量信息："<<T1.getEmissions()<<" "<<"车载人数："<<T1.getPassengerload()<<endl;
	cout<<"载重量："<<T1.getPayload()<<endl<<endl;
	system("pause");
	return 0;
}