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[实验任务一]：两个维度的桥接模式

用桥接模式实现在路上开车这个问题，其中，车可以是car或bus，路可以是水泥路或沥青路。

实验要求：

1. 画出对应的类图；

 

 

2. 提交源代码；

 

 

#include <iostream>

 

using namespace std;

 

class Transportation

{

public:

    virtual void drive(){}

};

 

class Car:public Transportation

{

public:

    void drive()

    {

        cout<<"小轿车";

    }

};

 

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<<"行驶在水泥路"<<endl;

    }

};

 

class BituminousRoad:public Road

{

    public:

    BituminousRoad(Transportation* transportation):Road(transportation)

    {

 

    }

    void driveOnRoad()

    {

        transportation->drive();

        cout<<"行驶在柏油路"<<endl;

    }

};

 

 

int main()

{

    Transportation* transportation;

    Car car=Car();

    transportation=&car;

    CementRoad(transportation).driveOnRoad();

}

3.注意编程规范。