[實驗任務一]：兩個維度的橋接模式

用橋接模式實現在路上開車這個問題，其中，車可以是car或bus，路可以是水泥路或瀝青路。

 

 

 

 

#include <iostream>

 

using namespace std;

 

class Transportation

{

public:

    virtual void drive(){}

};

 

class Car:public Transportation

{

public:

    void drive()

    {

        cout<<"小轎車";

    }

};

 

class Bus:public Transportation

{

public:

    void drive()

    {

        cout<<"大巴";

    }

};

 

class Road

{

public:

    Transportation* transportation;

 

    Road(Transportation* transportation)

    {

        this->transportation=transportation;

    }

    virtual void driveOnRoad(){}

};

 

class CementRoad:public Road

{

public:

    CementRoad(Transportation* transportation):Road(transportation)

    {

 

    }

 

    void driveOnRoad()

    {

        transportation->drive();

        cout<<"行駛在水泥路"<<endl;

    }

};

 

class BituminousRoad:public Road

{

    public:

    BituminousRoad(Transportation* transportation):Road(transportation)

    {

 

    }

    void driveOnRoad()

    {

        transportation->drive();

        cout<<"行駛在柏油路"<<endl;

    }

};

 

 

int main()

{

    Transportation* transportation;

    Car car=Car();

    transportation=&car;

    CementRoad(transportation).driveOnRoad();

}