浅谈C++ 设计模式的基本原则

#include<iostream> 
using namespace std; 
class BankWorker 
{ 
public: 
    void save() 
    { 
        cout << "存款" << endl; 
    } 
    void moveM() 
    { 
        cout << "取款" << endl; 
    } 
    void jiaofei() 
    { 
        cout << "缴费" << endl; 
    } 
}; 
class AbBankWorker 
{ 
public: 
    virtual void dothing() = 0; 
}; 
class SaveBanker :public AbBankWorker 
{ 
public: 
    virtual  void dothing() 
    { 
        cout << "存款" << endl; 
    } 
}; 
class MoveBanker :public AbBankWorker 
{ 
public: 
    virtual  void dothing() 
    { 
        cout << "取款" << endl; 
    } 
}; 
class SaveBanker :public AbBankWorker 
{ 
public: 
    virtual  void dothing() 
    { 
        cout << "缴费款" << endl; 
    } 
}; 
void main11() 
{ 
    BankWorker*bw = new BankWorker; 
    bw->jiaofei(); 
    bw->moveM(); 
    bw->save(); 
    cout << "hello..." << endl; 
    system("pause"); 
    return; 
} 
void main22() 
{ 
    AbBankWorker*bw = NULL; 
        bw=new MoveBanker; 
        bw->dothing(); 
        delete bw; 
    return; 
} 
void main() 
{ 
    main22(); 
    system("pause"); 
    return; 
} 

#include<iostream> 
using namespace std; 
class HardDisk 
{public: 
    virtual void work(); 
}; 
class Memory 
{ 
public: 
    virtual void work(); 
}; 
class Cpu 
{ 
public: 
    virtual void work(); 
}; 
class ComPuter 
{ 
public: 
    ComPuter(HardDisk*m_handdisk, Memory*m_memory, Cpu*m_cpu) 
    { 
        m_handdisk = handdisk; 
        m_memory = memory; 
        m_cpu = cpu; 
    } 
public: 
    void work() 
    { 
        m_handdisk->work(); 
        m_memory->work(); 
        m_cpu->work(); 
    } 
private: 
    HardDisk*m_handdisk; 
        Memory*m_memory; 
        Cpu*m_cpu; 
}; 
class InterCpu :public Cpu 
{ 
public: 
    void work() 
    { 
        cout << "我是因特尔厂家" << endl; 
    } 
}; 
class XSDisk :public HardDisk 
{ 
public: 
    void work() 
    { 
        cout << "我是西数硬盘厂家" << endl; 
    } 
}; 
class JSDMem :public Memory 
{ 
public: 
    void work() 
    { 
        cout << "我是JSDMem厂家" << endl; 
    } 
}; 
void main() 
{ 
    HardDisk*handdisk=NULL; 
    Memory*memory=NULL; 
    Cpu*cpu=NULL; 
    handdisk = new XSDisk; 
    memory= new JSDMem; 
    cpu = new InterCpu; 
    ComPuter*mycomputer = new ComPuter(harddisk, memory, cpu); 
    mycomputer->work(); 
    delete mycomputer; 
    delete cpu; 
    delete  memory; 
    delete  harddisk; 
    cout << "hello" << endl; 
    system("pause"); 
    return; 
}