第九章-原型模式

原型模式基本代码

#include<iostream>
#include<string>

using namespace std;

//抽象基类
class Prototype
{
private:
    string m_strName;
public:
    Prototype(string strName) { m_strName = strName; }
    Prototype() { m_strName = " "; }
    void Show()
    {
        cout << m_strName << endl;
    }
    virtual Prototype* Clone() = 0;
};

// class ConcretePrototype1
class ConcretePrototype1 : public Prototype
{
public:
    ConcretePrototype1(string strName) : Prototype(strName) {}
    ConcretePrototype1() {}

    virtual Prototype* Clone()
    {
        ConcretePrototype1 *p = new ConcretePrototype1();
        *p = *this;                         //复制对象
        return p;
    }
};

// class ConcretePrototype2
class ConcretePrototype2 : public Prototype
{
public:
    ConcretePrototype2(string strName) : Prototype(strName) {}
    ConcretePrototype2() {}

    virtual Prototype* Clone()
    {
        ConcretePrototype2 *p = new ConcretePrototype2();
        *p = *this; //复制对象
        return p;
    }
};



//客户端
int main()
{
    ConcretePrototype1* test = new ConcretePrototype1("小王");
    ConcretePrototype1* test2 = (ConcretePrototype1*)test->Clone();
    test->Show();
    test2->Show();

    system("pause");
    return 0;
}