添加设计模式及例子，包括：单例、抽象工厂、适配器、桥接、观察者模式

DesignPattern/AbstractFactoryPattern/Factory.cpp

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#include "Factory.h"
+#include "concrete_factory.h"
+
+Factory* Factory::CreateFactory(FACTORY_TYPE factory)
+{
+    Factory *pFactory = nullptr;
+    switch (factory) {
+        case FACTORY_TYPE::BENZ_FACTORY:  // 奔驰工厂
+            pFactory = new BenzFactory();
+            break;
+        case FACTORY_TYPE::BMW_FACTORY:  // 宝马工厂
+            pFactory = new BmwFactory();
+            break;
+        case FACTORY_TYPE::AUDI_FACTORY:  // 奥迪工厂
+            pFactory = new AudiFactory();
+            break;
+        default:
+            break;
+    }
+    return pFactory;
+}

DesignPattern/AbstractFactoryPattern/Factory.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_FACTORY_H
+#define DESIGNPATTERN_FACTORY_H
+
+#include "product.h"
+
+// 抽象工厂模式
+class Factory {
+public:
+    enum FACTORY_TYPE {
+        BENZ_FACTORY,   // 奔驰工厂
+        BMW_FACTORY,    // 宝马工厂
+        AUDI_FACTORY    // 奥迪工厂
+    };
+
+    virtual ICar* CreateCar() = 0;      // 生产汽车
+    virtual IBike* CreateBike() = 0;    // 生产自行车
+    static Factory * CreateFactory(FACTORY_TYPE factory); // 创建工厂
+};
+
+#endif //DESIGNPATTERN_FACTORY_H

DesignPattern/AbstractFactoryPattern/FactoryMain.cpp

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#include "Factory.h"
+#include "product.h"
+#include "FactoryMain.h"
+#include <iostream>
+using namespace std;
+
+void FactoryMain()
+{
+    // ąźłŰ
+    Factory * pFactory = Factory::CreateFactory(Factory::FACTORY_TYPE::BENZ_FACTORY);
+    ICar * pCar = pFactory->CreateCar();
+    IBike * pBike = pFactory->CreateBike();
+
+    cout << "Benz factory - Car: " << pCar->Name() << endl;
+    cout << "Benz factory - Bike: " << pBike->Name() << endl;
+
+    SAFE_DELETE(pCar);
+    SAFE_DELETE(pBike);
+    SAFE_DELETE(pFactory);
+
+    // ąŚÂí
+    pFactory = Factory::CreateFactory(Factory::FACTORY_TYPE::BMW_FACTORY);
+    pCar = pFactory->CreateCar();
+    pBike = pFactory->CreateBike();
+    cout << "Bmw factory - Car: " << pCar->Name() << endl;
+    cout << "Bmw factory - Bike: " << pBike->Name() << endl;
+
+    SAFE_DELETE(pCar);
+    SAFE_DELETE(pBike);
+    SAFE_DELETE(pFactory);
+
+    // °ÂľĎ
+    pFactory = Factory::CreateFactory(Factory::FACTORY_TYPE::AUDI_FACTORY);
+    pCar = pFactory->CreateCar();
+    pBike = pFactory->CreateBike();
+    cout << "Audi factory - Car: " << pCar->Name() << endl;
+    cout << "Audi factory - Bike: " << pBike->Name() << endl;
+
+    SAFE_DELETE(pCar);
+    SAFE_DELETE(pBike);
+    SAFE_DELETE(pFactory);
+}

DesignPattern/AbstractFactoryPattern/FactoryMain.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_FACTORYMAIN_H
+#define DESIGNPATTERN_FACTORYMAIN_H
+
+#ifndef SAFE_DELETE
+#define SAFE_DELETE(p) { if(p) {delete(p); (p)=nullptr;}}
+#endif
+
+void FactoryMain();
+
+#endif //DESIGNPATTERN_FACTORYMAIN_H

DesignPattern/AbstractFactoryPattern/concrete_factory.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_CONCRETE_FACTORY_H
+#define DESIGNPATTERN_CONCRETE_FACTORY_H
+
+#include "Factory.h"
+#include "concrete_product.h"
+
+// 奔驰工厂
+class BenzFactory : public Factory
+{
+public:
+    ICar* CreateCar()
+    {
+        return new BenzCar();
+    }
+    IBike* CreateBike()
+    {
+        return new BenzBike();
+    }
+};
+
+// 宝马工厂
+class BmwFactory : public Factory
+{
+public:
+    ICar* CreateCar() {
+        return new BmwCar();
+    }
+
+    IBike* CreateBike() {
+        return new BmwBike();
+    }
+};
+
+// 奥迪工厂
+class AudiFactory : public Factory
+{
+public:
+    ICar* CreateCar() {
+        return new AudiCar();
+    }
+
+    IBike* CreateBike() {
+        return new AudiBike();
+    }
+};
+
+#endif //DESIGNPATTERN_CONCRETE_FACTORY_H

DesignPattern/AbstractFactoryPattern/concrete_product.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_CONCRETE_PRODUCT_H
+#define DESIGNPATTERN_CONCRETE_PRODUCT_H
+
+#include "product.h"
+
+/********** 汽车 **********/
+// 奔驰
+class BenzCar : public ICar
+{
+public:
+    string Name()
+    {
+        return "Benz Car";
+    }
+};
+
+// 宝马
+class BmwCar : public ICar
+{
+public:
+    string Name()
+    {
+        return "Bmw Car";
+    }
+};
+
+// 奥迪
+class AudiCar : public ICar
+{
+public:
+    string Name()
+    {
+        return "Audi Car";
+    }
+};
+
+/********** 自行车 **********/
+// 奔驰
+class BenzBike : public IBike
+{
+public:
+    string Name()
+    {
+        return "Benz Bike";
+    }
+};
+
+// 宝马
+class BmwBike : public IBike
+{
+public:
+    string Name()
+    {
+        return "Bmw Bike";
+    }
+};
+
+// 奥迪
+class AudiBike : public IBike
+{
+public:
+    string Name()
+    {
+        return "Audi Bike";
+    }
+};
+
+#endif //DESIGNPATTERN_CONCRETE_PRODUCT_H

DesignPattern/AbstractFactoryPattern/product.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_PRODUCT_H
+#define DESIGNPATTERN_PRODUCT_H
+
+#include <string>
+using std::string;
+
+// 汽车接口
+class ICar
+{
+public:
+    virtual string Name() = 0;
+};
+
+// 自行车接口
+class IBike
+{
+public:
+    virtual string Name() = 0;
+};
+
+#endif //DESIGNPATTERN_PRODUCT_H

DesignPattern/AdapterPattern/AdapterMain.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_ADAPTERMAIN_H
+#define DESIGNPATTERN_ADAPTERMAIN_H
+
+#include "adapter.h"
+
+void AdapterMain()
+{
+    // 创建适配器
+    IRussiaSocket * pAdapter = new PowerAdapter();
+
+    // 充电
+    pAdapter->Charge();
+
+    SAFE_DELETE(pAdapter);
+}
+
+#endif //DESIGNPATTERN_ADAPTERMAIN_H

DesignPattern/AdapterPattern/adaptee.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_ADAPTEE_H
+#define DESIGNPATTERN_ADAPTEE_H
+
+#include <iostream>
+
+// 自带的充电器（两脚扁型）
+class OwnCharger
+{
+public:
+    void ChargeWithFeetFlat()
+    {
+        std::cout << "OwnCharger::ChargeWithFeetFlat\n";
+    }
+};
+
+#endif //DESIGNPATTERN_ADAPTEE_H

DesignPattern/AdapterPattern/adapter.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_ADAPTER_H
+#define DESIGNPATTERN_ADAPTER_H
+
+#include "target.h"
+#include "adaptee.h"
+
+#ifndef SAFE_DELETE
+#define SAFE_DELETE(p) { if(p){delete(p); (p)=NULL;} }
+#endif
+
+// 电源适配器
+class PowerAdapter : public IRussiaSocket
+{
+public:
+    PowerAdapter() : m_pCharger(new OwnCharger()){}
+    ~PowerAdapter()
+    {
+        SAFE_DELETE(m_pCharger);
+    }
+    void Charge()
+    {
+        // 使用自带的充电器（两脚扁形）充电
+        m_pCharger->ChargeWithFeetFlat();
+    }
+private:
+    // 持有需要被适配的接口对象（自带的充电器）
+    OwnCharger* m_pCharger;
+};
+
+#endif //DESIGNPATTERN_ADAPTER_H

DesignPattern/AdapterPattern/target.h

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+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_TARGET_H
+#define DESIGNPATTERN_TARGET_H
+
+// 俄罗斯提供的插座
+class IRussiaSocket
+{
+public:
+    // 使用双脚圆形充电（暂不实现）
+    virtual void Charge() = 0;
+};
+
+#endif //DESIGNPATTERN_TARGET_H

DesignPattern/BridgePattern/BridgeMain.cpp

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#include "BridgeMain.h"
+
+void BridgeMain()
+{
+    // 创建电器（电灯、电风扇）
+    IElectricalEquipment * light = new Light();
+    IElectricalEquipment * fan = new Fan();
+
+    // 创建开关（拉链式开关、两位开关）
+    // 将拉链式开关和电灯关联起来，两位开关和风扇关联起来
+    ISwitch * pullChain = new PullChainSwitch(light);
+    ISwitch * twoPosition = new TwoPositionSwitch(fan);
+
+    // 开灯、关灯
+    pullChain->On();
+    pullChain->Off();
+
+    // 打开风扇、关闭风扇
+    twoPosition->On();
+    twoPosition->Off();
+
+    SAFE_DELETE(twoPosition);
+    SAFE_DELETE(pullChain);
+    SAFE_DELETE(fan);
+    SAFE_DELETE(light);
+}

DesignPattern/BridgePattern/BridgeMain.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_BRIDGEMAIN_H
+#define DESIGNPATTERN_BRIDGEMAIN_H
+
+#include "refined_abstraction.h"
+#include "concrete_implementor.h"
+
+#ifndef SAFE_DELETE
+#define SAFE_DELETE(p) { if(p){delete(p); (p)=nullptr;} }
+#endif
+
+void BridgeMain();
+
+#endif //DESIGNPATTERN_BRIDGEMAIN_H

DesignPattern/BridgePattern/abstraction.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_ABSTRACTION_H
+#define DESIGNPATTERN_ABSTRACTION_H
+
+#include "implementor.h"
+
+// 开关
+class ISwitch
+{
+public:
+    ISwitch(IElectricalEquipment *ee){ m_pEe = ee; }
+    virtual ~ISwitch(){}
+    virtual void On() = 0;  // 打开电器
+    virtual void Off() = 0;  // 关闭电器
+
+protected:
+    IElectricalEquipment * m_pEe;
+};
+
+#endif //DESIGNPATTERN_ABSTRACTION_H

DesignPattern/BridgePattern/concrete_implementor.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_CONCRETE_IMPLEMENTOR_H
+#define DESIGNPATTERN_CONCRETE_IMPLEMENTOR_H
+
+#include "implementor.h"
+#include <iostream>
+
+// 电灯
+class Light : public IElectricalEquipment
+{
+public:
+    // 开灯
+    virtual void PowerOn() override
+    {
+        std::cout << "Light is on." << std::endl;
+    }
+    // 关灯
+    virtual  void PowerOff() override
+    {
+        std::cout << "Light is off." << std::endl;
+    }
+};
+
+// 风扇
+class Fan : public IElectricalEquipment
+{
+public:
+    // 打开风扇
+    virtual void PowerOn() override
+    {
+        std::cout << "Fan is on." << std::endl;
+    }
+    //关闭风扇
+    virtual  void PowerOff() override
+    {
+        std::cout << "Fan is off." << std::endl;
+    }
+};
+
+
+#endif //DESIGNPATTERN_CONCRETE_IMPLEMENTOR_H

DesignPattern/BridgePattern/implementor.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_IMPLEMENTOR_H
+#define DESIGNPATTERN_IMPLEMENTOR_H
+
+// 电器
+class IElectricalEquipment
+{
+public:
+    virtual ~IElectricalEquipment(){}
+    virtual void PowerOn() = 0;     // 打开
+    virtual void PowerOff() = 0;    // 关闭
+};
+
+#endif //DESIGNPATTERN_IMPLEMENTOR_H

DesignPattern/BridgePattern/refined_abstraction.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_REFINED_ABSTRACTION_H
+#define DESIGNPATTERN_REFINED_ABSTRACTION_H
+
+#include "abstraction.h"
+#include <iostream>
+
+// 拉链式开关
+class PullChainSwitch : public ISwitch
+{
+public:
+    PullChainSwitch(IElectricalEquipment *ee) : ISwitch(ee) {}
+
+    // 用拉链式开关打开电器
+    virtual void On() override
+    {
+        std::cout << "Switch on the equipment with a pull chain switch." << std::endl;
+        m_pEe->PowerOn();
+    }
+
+    // 用拉链式开关关闭电器
+    virtual void Off() override
+    {
+        std::cout << "Switch off the equipment with a pull chain switch." << std::endl;
+        m_pEe->PowerOff();
+    }
+};
+
+// 两位开关
+class TwoPositionSwitch : public ISwitch
+{
+public:
+    TwoPositionSwitch(IElectricalEquipment *ee) : ISwitch(ee) {}
+
+    // 用两位开关打开电器
+    virtual void On() override
+    {
+        std::cout << "Switch on the equipment with a two-position switch." << std::endl;
+        m_pEe->PowerOn();
+    }
+
+    // 用两位开关关闭电器
+    virtual void Off() override {
+        std::cout << "Switch off the equipment with a two-position switch." << std::endl;
+        m_pEe->PowerOff();
+    }
+};
+
+
+#endif //DESIGNPATTERN_REFINED_ABSTRACTION_H

DesignPattern/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+project(DesignPattern)
+
+set(CMAKE_CXX_STANDARD 11)
+
+add_executable(DesignPattern main.cpp AbstractFactoryPattern/product.h AbstractFactoryPattern/concrete_product.h AbstractFactoryPattern/Factory.cpp AbstractFactoryPattern/Factory.h AbstractFactoryPattern/concrete_factory.h AbstractFactoryPattern/FactoryMain.cpp AbstractFactoryPattern/FactoryMain.h SingletonPattern/Singleton.cpp SingletonPattern/Singleton.h SingletonPattern/SingletonMain.h AdapterPattern/target.h AdapterPattern/adaptee.h AdapterPattern/adapter.h AdapterPattern/AdapterMain.h BridgePattern/implementor.h BridgePattern/concrete_implementor.h BridgePattern/abstraction.h BridgePattern/refined_abstraction.h BridgePattern/BridgeMain.h BridgePattern/BridgeMain.cpp ObserverPattern/subject.h ObserverPattern/observer.h ObserverPattern/concrete_subject.h ObserverPattern/concrete_observer.h ObserverPattern/ObserverMain.cpp ObserverPattern/ObserverMain.h)

DesignPattern/ObserverPattern/ObserverMain.cpp

@@ -0,0 +1,34 @@
+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#include "ObserverMain.h"
+
+void ObserverMain()
+{
+    // 创建主题
+    ConcreteSubject * pSubject = new ConcreteSubject();
+
+    // 创建观察者
+    IObserver * pObserver1 = new ConcreteObserver("Jack Ma");
+    IObserver * pObserver2 = new ConcreteObserver("Pony");
+
+    // 注册观察者
+    pSubject->Attach(pObserver1);
+    pSubject->Attach(pObserver2);
+
+    // 更改价格，并通知观察者
+    pSubject->SetPrice(12.5);
+    pSubject->Notify();
+
+    // 注销一个观察者
+    pSubject->Detach(pObserver2);
+
+    // 再次更改状态，并通知观察者
+    pSubject->SetPrice(15.0);
+    pSubject->Notify();
+
+    SAFE_DELETE(pObserver1);
+    SAFE_DELETE(pObserver2);
+    SAFE_DELETE(pSubject);
+}

DesignPattern/ObserverPattern/ObserverMain.h

@@ -0,0 +1,17 @@
+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_OBSERVERMAIN_H
+#define DESIGNPATTERN_OBSERVERMAIN_H
+
+#include "concrete_subject.h"
+#include "concrete_observer.h"
+
+#ifndef SAFE_DELETE
+#define SAFE_DELETE(p) { if(p){delete(p); (p)=nullptr;} }
+#endif
+
+void ObserverMain();
+
+#endif //DESIGNPATTERN_OBSERVERMAIN_H

DesignPattern/ObserverPattern/concrete_observer.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_CONCRETE_OBSERVER_H
+#define DESIGNPATTERN_CONCRETE_OBSERVER_H
+
+#include "observer.h"
+#include <iostream>
+#include <string>
+
+class ConcreteObserver : public IObserver
+{
+public:
+    ConcreteObserver(std::string name) { m_strName = name; }
+    void Update(float price)
+    {
+        std::cout << m_strName << " - price" << price << "\n";
+    }
+
+private:
+    std::string m_strName;  // 名字
+};
+
+#endif //DESIGNPATTERN_CONCRETE_OBSERVER_H

DesignPattern/ObserverPattern/concrete_subject.h

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+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_CONCRETE_SUBJECT_H
+#define DESIGNPATTERN_CONCRETE_SUBJECT_H
+
+#include "subject.h"
+#include "observer.h"
+#include <iostream>
+#include <list>
+
+// 具体主题
+class  ConcreteSubject : public ISubject
+{
+public:
+    ConcreteSubject(){ m_fPrice = 10.0; }
+    void SetPrice(float price)
+    {
+        m_fPrice = price;
+    }
+    void Attach(IObserver * observer)
+    {
+        m_observers.push_back(observer);
+    }
+    void Detach(IObserver * observer)
+    {
+        m_observers.remove(observer);
+    }
+    // 通知所有观察者
+    void Notify()
+    {
+        std::list<IObserver *>::iterator it = m_observers.begin();
+        while (it != m_observers.end())
+        {
+            (*it)->Update(m_fPrice);
+            ++it;
+        }
+    }
+private:
+    std::list<IObserver *> m_observers; // 观察者列表
+    float m_fPrice;                     // 价格
+};
+
+#endif //DESIGNPATTERN_CONCRETE_SUBJECT_H

DesignPattern/ObserverPattern/observer.h

@@ -0,0 +1,15 @@
+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_OBSERVER_H
+#define DESIGNPATTERN_OBSERVER_H
+
+// 抽象观察者
+class IObserver
+{
+public:
+    virtual void Update(float price) = 0;   // 更新价格
+};
+
+#endif //DESIGNPATTERN_OBSERVER_H

DesignPattern/ObserverPattern/subject.h

@@ -0,0 +1,18 @@
+//
+// Created by xiemenghui on 2018/7/21.
+//
+
+#ifndef DESIGNPATTERN_SUBJECT_H
+#define DESIGNPATTERN_SUBJECT_H
+
+class IObserver;
+
+class ISubject
+{
+public:
+    virtual void Attach(IObserver *) = 0;   // 注册观察者
+    virtual void Detach(IObserver *) = 0;   // 注销观察者
+    virtual void Notify() = 0;              // 通知观察者
+};
+
+#endif //DESIGNPATTERN_SUBJECT_H

DesignPattern/README.md

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+# DesignPattern

DesignPattern/SingletonPattern/README.md

@@ -0,0 +1,34 @@
+# 单例模式
+
+```cpp
+// 懒汉式单例模式
+class Singleton
+{
+private:
+	Singleton() { }
+	static Singleton * pInstance;
+public:
+	static Singleton * GetInstance()
+	{
+		if (pInstance == nullptr)
+			pInstance = new Singleton();
+		return pInstance;
+	}
+};
+
+// 线程安全的单例模式
+class Singleton
+{
+private:
+	Singleton() { }
+	~Singleton() { }
+	Singleton(const Singleton &);
+	Singleton & operator = (const Singleton &);
+public:
+	static Singleton & GetInstance()
+	{
+		static Singleton instance;
+		return instance;
+	}
+};
+```

DesignPattern/SingletonPattern/Singleton.cpp

@@ -0,0 +1,11 @@
+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#include <iostream>
+#include "Singleton.h"
+
+void Singleton::DoSomething()
+{
+    std::cout << "Singleton do something\n";
+}

DesignPattern/SingletonPattern/Singleton.h

@@ -0,0 +1,25 @@
+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_SINGLETON_H
+#define DESIGNPATTERN_SINGLETON_H
+
+// 单例模式
+class Singleton {
+private:
+    Singleton(){}
+    ~Singleton(){}
+    Singleton(const Singleton &);
+    Singleton & operator= (const Singleton &);
+
+public:
+    static Singleton & GetInstance()
+    {
+        static Singleton instance;
+        return instance;
+    }
+    void DoSomething();
+};
+
+#endif //DESIGNPATTERN_SINGLETON_H

DesignPattern/SingletonPattern/SingletonMain.h

@@ -0,0 +1,15 @@
+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#ifndef DESIGNPATTERN_SINGLETONMAIN_H
+#define DESIGNPATTERN_SINGLETONMAIN_H
+
+#include "Singleton.h"
+
+void SingletonMain()
+{
+    Singleton::GetInstance().DoSomething();
+}
+
+#endif //DESIGNPATTERN_SINGLETONMAIN_H

DesignPattern/main.cpp

@@ -0,0 +1,43 @@
+//
+// Created by xiemenghui on 2018/7/20.
+//
+
+#include <iostream>
+#include "SingletonPattern/SingletonMain.h"
+#include "AbstractFactoryPattern/FactoryMain.h"
+#include "AdapterPattern/AdapterMain.h"
+#include "BridgePattern/BridgeMain.h"
+#include "ObserverPattern/ObserverMain.h"
+
+int main() {
+    std::cout << "*******************" << std::endl;
+    std::cout << "** Éè¼ÆģʽÀý×Ó **" << std::endl;
+    std::cout << "*******************" << std::endl;
+
+    std::cout << "*******************" << std::endl;
+    std::cout << "** µ¥Àýģʽ **" << std::endl;
+    std::cout << "*******************" << std::endl;
+    SingletonMain();
+
+    std::cout << "*******************" << std::endl;
+    std::cout << "** ³éÏ󹤳§Ä£Ê½ **" << std::endl;
+    std::cout << "*******************" << std::endl;
+    FactoryMain();
+    
+    std::cout << "*******************" << std::endl;
+    std::cout << "** ÊÊÅäÆ÷ģʽ **" << std::endl;
+    std::cout << "*******************" << std::endl;
+    AdapterMain();
+
+    std::cout << "*******************" << std::endl;
+    std::cout << "** ÇŽÓģʽ **" << std::endl;
+    std::cout << "*******************" << std::endl;
+    BridgeMain();
+    
+    std::cout << "*******************" << std::endl;
+    std::cout << "** ¹Û²ìÕßģʽ **" << std::endl;
+    std::cout << "*******************" << std::endl;
+    ObserverMain();
+
+    return 0;
+}

README.md

@@ -2420,6 +2420,8 @@ ssize_t write(int fd, const void *buf, size_t count);
 
 ## 设计模式
 
+> 各大设计模式例子参考：[CSDN专栏 . C++ 设计模式](https://blog.csdn.net/column/details/15392.html) 系列博文
+
 ### 设计模式的六大原则
 
 * 单一职责原则（SRP，Single Responsibility Principle）
@@ -2431,38 +2433,23 @@ ssize_t write(int fd, const void *buf, size_t count);
 
 ### 单例模式
 
-```cpp
-// 懒汉式单例模式
-class Singleton
-{
-private:
-	Singleton() { }
-	static Singleton * pInstance;
-public:
-	static Singleton * GetInstance()
-	{
-		if (pInstance == nullptr)
-			pInstance = new Singleton();
-		return pInstance;
-	}
-};
+[单例模式例子](DesignPattern/SingletonPattern)
 
-// 线程安全的单例模式
-class Singleton
-{
-private:
-	Singleton() { }
-	~Singleton() { }
-	Singleton(const Singleton &);
-	Singleton & operator = (const Singleton &);
-public:
-	static Singleton & GetInstance()
-	{
-		static Singleton instance;
-		return instance;
-	}
-};
-```
+### 抽象工厂模式
+
+[抽象工厂模式例子](DesignPattern/AbstractFactoryPattern)
+
+### 适配器模式
+
+[适配器模式例子](DesignPattern/AdapterPattern)
+
+### 桥接模式
+
+[桥接模式例子](DesignPattern/BridgePattern)
+
+### 观察者模式
+
+[观察者模式例子](DesignPattern/ObserverPattern)
 
 ## 链接装载库