C++多重继承的例子

//程序作者:管宁
//站点:www.cndev-lab.com
//所有稿件均有版权,如要转载,请务必著名出处和作者

#include <iostream>
using namespace std;

class Vehicle
{
public:
Vehicle(int weight = 0)
{
Vehicle::weight = weight;
cout<<"载入Vehicle类构造函数"<<endl;
}
void SetWeight(int weight)
{
cout<<"重新设置重量"<<endl;
Vehicle::weight = weight;
}
virtual void ShowMe() = 0;
protected:
int weight;
};
class Car:virtual public Vehicle//汽车，这里是虚拟继承
{
public:
Car(int weight=0,int aird=0):Vehicle(weight)
{
Car::aird = aird;
cout<<"载入Car类构造函数"<<endl;
}
void ShowMe()
{
cout<<"我是汽车！"<<endl;
}
protected:
int aird;
};

class Boat:virtual public Vehicle//船,这里是虚拟继承
{
public:
Boat(int weight=0,float tonnage=0):Vehicle(weight)
{
Boat::tonnage = tonnage;
cout<<"载入Boat类构造函数"<<endl;
}
void ShowMe()
{
cout<<"我是船！"<<endl;
}
protected:
float tonnage;
};

class AmphibianCar:public Car,public Boat//水陆两用汽车,多重继承的体现
{
public:
AmphibianCar(int weight,int aird,float tonnage)
:Vehicle(weight),Car(weight,aird),Boat(weight,tonnage)
//多重继承要注意调用基类构造函数
{
cout<<"载入AmphibianCar类构造函数"<<endl;
}
void ShowMe()
{
cout<<"我是水陆两用汽车！"<<endl;
}
void ShowMembers()
{
cout<<"重量："<<weight<<"顿，"<<"空气排量："<<aird<<"CC，"<<"排水量："<<tonnage<<"顿"<<endl;
}
};
int main()
{
AmphibianCar a(4,200,1.35f);
a.ShowMe();
a.ShowMembers();
a.SetWeight(3);
a.ShowMembers();
system("pause");
return 0;
}