设计模式9：装饰模式【结构型】

#include <iostream>#include <string>using namespace std;//struct IPhone{public:IPhone() { }virtual ~IPhone() { }virtual void ShowDecorate() = 0;};class CApplePhone : public IPhone{public:CApplePhone(string name) : m_name(name) { }virtual ~CApplePhone() { }virtual void ShowDecorate() { cout<<m_name<<" "; }private:string m_name;};class CNokiaPhone : public IPhone{public:CNokiaPhone(string name) : m_name(name) { }virtual ~CNokiaPhone() { }virtual void ShowDecorate() { cout<<m_name<<" "; }private:string m_name;};//struct IDecorate : public IPhone{public:IDecorate(IPhone *pPhone) : m_pPhone(pPhone) { }virtual ~IDecorate() { }virtual void ShowDecorate() { m_pPhone->ShowDecorate(); }private:IPhone *m_pPhone;};class CDecorateA : public IDecorate{public:CDecorateA(IPhone *pPhone) : IDecorate(pPhone) { }virtual ~CDecorateA() { }virtual void ShowDecorate() { IDecorate::ShowDecorate(); AddDecorate();  }private:void AddDecorate() { cout<<"挂件"<<endl; }};class CDecorateB : public IDecorate{public:CDecorateB(IPhone *pPhone) : IDecorate(pPhone) { }virtual ~CDecorateB() { }virtual void ShowDecorate() { IDecorate::ShowDecorate(); AddDecorate(); }private:void AddDecorate() { cout<<"贴膜"<<endl; }};//void main(){CApplePhone Phone("apple");CDecorateA decorate(&Phone);decorate.ShowDecorate();}