C/code/车基类派生出自行车类和汽车类再从自行车类和汽车类派生摩托车（多态）.cpp

#include <iostream>
using namespace std;

class Vehicle {
public:
    virtual void Run() {
        cout << "vehicle run!" << endl;
    }

    virtual void Stop() {
        cout << "vehicle stop!" << endl;
    }
};

class Bicycle : virtual public Vehicle {
public:
    void Run() {
        cout << "bicycle run!" << endl;
    }

    void Stop() {
        cout << "bicycle stop!" << endl;
    }
};

class Motorcar : virtual public Vehicle {
public:
    void Run() {
        cout << "motocar run!" << endl;
    }

    void Stop() {
        cout << "motocar stop!" << endl;
    }
};

class Motorcycle : public Bicycle, public Motorcar {
public:
    void Run() {
        cout << "motocycle run!" << endl;
    }

    void Stop() {
        cout << "motocycle stop!" << endl;
    }
};

int main() {
    	Vehicle  v;
        v.Run();
        v.Stop();
        Bicycle  b;
        b.Run();
        b.Stop();
        Motorcar  m;
        m.Run();
        m.Stop();
        Motorcycle  mc;
        mc.Run();
        mc.Stop();
        Vehicle*  vp  =  &v;
        vp->Run();
        vp->Stop();
        vp  =  &b;
        vp->Run();
        vp->Stop();
        vp  =  &m;
        vp->Run();
        vp->Stop();
        vp  =  &mc;
        vp->Run();
        vp->Stop();
        return  0;
}