实现：多态的综合案例

示例代码如下：解释都写在注释里面

#include<iostream>
#include<string>

using namespace std;

class Cpu { //定义cpu类
public:
    virtual void calculate() = 0;
};

class VideoCard {//定义VideoCard类
public:
    virtual void display() = 0;
};

class Memory {//定义Memory类

public:
    virtual void storage() = 0;
};

class InterCpu:public Cpu{ //封装一个InterCpu类
public:
    void calculate() {
        cout << "Intercpu正在计算" << endl;
    }

};

class InterVideoCard:public VideoCard { //封装一个InterCpu类
public:
    void display() {
        cout << "InterVideoCard正在显示" << endl;
    }
};

class InterMemory:public Memory{ //封装一个InterMemory类
public:
    void storage() {
        cout << "InterMem正在储存" << endl;
    }
};



class Computer {

public:

    Computer(Cpu * cpu,VideoCard * vc,Memory * mem ) {
        this->m_cpu = cpu;
        this->m_vc = vc;
        this->m_mem = mem;
    }
    ~Computer() {  //析构函数来释放子类的内存
        if (m_cpu != NULL) {
            delete m_cpu;
            m_cpu = NULL;
        }
        if (m_vc != NULL) {
            delete m_vc;
            m_vc = NULL;
        }
        if (m_mem != NULL) {
            delete m_mem;
            m_mem = NULL;
        }
    }
    void Work() {
        m_cpu->calculate();
        m_mem->storage();
        m_vc->display();
    }
    
private:
    Cpu * m_cpu;
    VideoCard * m_vc;
    Memory * m_mem;
};

void test01() {
    Cpu * c1 = new InterCpu;
    VideoCard * vc1 = new InterVideoCard;
    Memory * m1= new InterMemory;
    
    Computer * com1 = new Computer(c1, vc1, m1);
    com1->Work();

    
}

int main() {
    test01();
    system("pause");
    return 0;
}