尘世一小猿的专栏

常用的23种设计模式，都是自己找资料整理的，拿出来和大家分享。 创建型： abstract_factory                      抽象工厂 builder                               建造者模式 factory                               简单工厂 prototype                  

#include using namespace std; template class Factory { public: Factory():m_pointer(NULL){} Base *create() { if (m_pointer != NULL) return m_pointer; m_pointe

#include #include #include using namespace std; class fly_weight { public: virtual ~fly_weight(){} virtual void operation(const string &state){} string get_state() { return

#include #include using namespace std; class context { public: context(){} ~context(){} }; class abstract_expression { public: virtual ~abstract_expression(){} virtual void interpr

#include #include #include using namespace std; class Iterator; typedef int Object; class Interator; class Aggregate { public: virtual ~Aggregate(){} virtual Iterator *CreateIterator() =0

#include #include using namespace std; class memento; class originator { public: typedef string state; originator():_me(NULL){ _me = create_memento(); } originator(const state &st):_st(

#include #include #include using namespace std; // subject notify中调用 observer 的update 更新状态 typedef string State; class subject; class observer { public: virtual ~observer(){} virtual void

#include #include using namespace std; class Prototype { public: virtual ~Prototype(){} virtual Prototype *clone(string name, int age) =0; virtual void getInfo() =0; virtual void se

#include using namespace std; class singleton { public: void method(){ cout <<"singleton::method"<<endl; } //... static singleton *getInstance(); static singleton *instance; private:

#include #include using namespace std; class TestPaper { public: virtual ~TestPaper(){} void TestQuestion1() { cout

#include #include using namespace std; /* 1) 将 State声明为 Context的友元类（friend class） ，其作用是让 State模式访问 Context 的 protected接口 ChangeSate（） 。 2) State 及其子类中的操作都将 Context*传入作为参数，其主要目的是 State 类可以通 过这个指针调用

#include #include #include using namespace std; class IAnimal //工厂创建出的接口 { public: virtual int GetNumberOfLegs() const = 0; virtual void Speak() = 0; virtual void Free() = 0; }; typ

#include using namespace std; //外观模式 最简单的模式 不需要虚函数 继承等 class foo { public: void show() { cout<<"foo::show()"<<endl; } }; class bar { public: void show() { cout<<"

#include #include using namespace std; class Component { public: virtual ~Component(){} virtual void Operation(){} protected: Component(){}; }; class ConcreteComponent : public Compone

#include #include using namespace std; class country; class united_nation //中介类 { public: virtual ~united_nation(){} virtual void declare(const string &message, country *colleague) =0; };

#include #include using namespace std; class Subject { public: virtual ~Subject(){}; virtual void Request() = 0; }; class ConcreteSubject : public Subject { public: ConcreteSubject(){}

#include #include #include using namespace std; class element; class visitor { public: visitor(string name): _name(name){} virtual ~visitor(){} virtual void visit_concrete_elementA(ele

#include #include #include using namespace std; template class abstract_factory { public:     virtual ~abstract_factory(){}     virtual Base *create() =0; }; template class fa

#include #include using namespace std; class target { public: target(){} virtual ~target(){} virtual void request() { cout<< "target::request()" <<endl; } }; class ada

#include #include using namespace std; class abstraction_imp { public: virtual ~abstraction_imp(){} virtual void operation() =0; }; class abstraction { public: virtual ~abstraction(){}

#include #include #include using namespace std; class Product { public: void add(string part) { lst.push_back(part); } void show() { for (list::iterator it = l

#include using namespace std; class handle { public: handle():_suc(NULL){} virtual ~handle(){} void set_successor(handle *suc) { _suc = suc; } handle *get_successor()

#include using namespace std; class reciver //执行者 { public: void action() { cout<< "reciver::action()"<<endl; } }; class command //命令 { public: command(reciver *rec):_rec(re

#include #include #include using namespace std; class component { public: virtual ~component(){} virtual void operation() =0; virtual void add(component *) =0; virtual void remove

#include using namespace std; class travel{ public: virtual void travel_method() = 0; virtual ~travel(){} }; class travel_with_plane:public travel{ public: void travel_method(){