add Command Pattern

15.CommandPattern/2.Code/CommandPattern.h

@@ -0,0 +1,172 @@
+#ifndef __COMMAND_PATTERN_H__
+#define __COMMAND_PATTERN_H__
+
+#include <mutex>
+#include <time.h>
+using namespace std;
+
+//  命令队列类
+#define COMMAND_QUEUE
+
+// 抽象命令类 Command
+class Command
+{
+public:
+	Command(){}
+	// 声明抽象接口：发送命令
+	virtual void execute() = 0;
+private:
+	Command *command;
+};
+
+// 接收者：电灯类
+class Lamp
+{
+public :
+	Lamp(){
+		this->lampState = false;
+	}
+	void on(){
+		lampState = true;
+		printf("Lamp is on\n");
+	}
+	void off(){
+		lampState = false;
+		printf("Lamp is off\n");
+	}
+	bool getLampState(){
+		return lampState;
+	}
+private:
+	bool lampState;
+};
+
+// 接收者：风扇类
+class Fan
+{
+public:
+	Fan(){
+		this->fanState = false;
+	}
+	void on(){
+		fanState = true;
+		printf("Fan is on\n");
+	}
+	void off(){
+		fanState = false;
+		printf("Fan is off\n");
+	}
+	bool getFanState(){
+		return fanState;
+	}
+private:
+	bool fanState;
+};
+
+// 具体命令类 LampCommand
+class LampCommand :public Command
+{
+public:
+	LampCommand(){
+		printf("开关控制电灯\n");
+		lamp = new Lamp();
+	}
+	// 实现execute()
+	void execute(){
+		if (lamp->getLampState()){
+			lamp->off();
+		}
+		else{
+			lamp->on();
+		}
+	}
+private:
+	Lamp *lamp;
+};
+
+// 具体命令类 FanCommand
+class FanCommand :public Command
+{
+public:
+	FanCommand(){
+		printf("开关控制风扇\n");
+		fan = new Fan();
+	}
+	// 实现execute()
+	void execute(){
+		if (fan->getFanState()){
+			fan->off();
+		}
+		else{
+			fan->on();
+		}
+	}
+private:
+	Fan *fan;
+};
+
+// 调用者 Button
+class Button
+{
+public:
+	Button(){}
+	// 注入具体命令类对象
+	void setCommand(Command *cmd){
+		this->command = cmd;
+	}
+	// 发送命令：触摸按钮
+	void touch(){
+		printf("触摸开关:");
+		command->execute();
+	}
+private:
+	Command *command;
+};
+
+#ifdef COMMAND_QUEUE
+/*************************************/
+/*             命令队列              */
+#include <vector>
+
+// 命令队列类
+class CommandQueue
+{
+public:
+	CommandQueue(){
+	}
+	void addCommand(Command *cmd){
+		commandQueue.push_back(cmd);
+	}
+	void execute(){
+		for (int i = 0; i < commandQueue.size(); i++)
+		{
+			commandQueue[i]->execute();
+		}
+	}
+private:
+	vector<Command*>commandQueue;
+
+};
+
+// 调用者
+class Button2
+{
+public:
+	Button2(){}
+	// 注入具体命令队列类对象
+	void setCommandQueue(CommandQueue *cmdQueue){
+		this->cmdQueue = cmdQueue;
+	}
+	// 发送命令：触摸按钮
+	void touch(){
+		printf("触摸开关:");
+		cmdQueue->execute();
+	}
+private:
+	CommandQueue *cmdQueue;
+};
+
+#endif
+
+
+#endif //__COMMAND_PATTERN_H__

15.CommandPattern/2.Code/main.cpp

@@ -0,0 +1,49 @@
+#include <iostream>
+#include "CommandPattern.h"
+
+int main()
+{
+	// 实例化调用者：按钮
+	Button *button = new Button();
+	Command *lampCmd, *fanCmd;
+
+	// 按钮控制电灯
+	lampCmd = new LampCommand();
+	button->setCommand(lampCmd);
+	button->touch();
+	button->touch();
+	button->touch();
+
+	printf("\n\n");
+
+	// 按钮控制风扇
+	fanCmd = new FanCommand();
+	button->setCommand(fanCmd);
+	button->touch();
+	button->touch();
+	button->touch();
+
+#ifdef COMMAND_QUEUE
+
+	printf("\n\n***********************************\n");
+	Button2 *button2 = new Button2();
+	Command *lampCmd2, *fanCmd2;
+	CommandQueue *cmdQueue = new CommandQueue();
+
+	// 按钮控制电灯
+	lampCmd2 = new LampCommand();
+	cmdQueue->addCommand(lampCmd2);
+
+	// 按钮控制风扇
+	fanCmd2 = new FanCommand();
+	cmdQueue->addCommand(fanCmd2);
+
+	button2->setCommandQueue(cmdQueue);
+	button2->touch();
+
+#endif
+
+	printf("\n\n");
+	system("pause");
+	return 0;
+}

README.md

@@ -63,10 +63,14 @@ Jungle设计模式系列
 
 博客地址：https://blog.csdn.net/sinat_21107433/article/details/102763849
 
-15.设计模式（十六）——代理模式
+16.设计模式（十六）——代理模式
 
 博客地址：https://blog.csdn.net/sinat_21107433/article/details/102772697
 
-16.设计模式（十七）——职责链模式
+17.设计模式（十七）——职责链模式
 
 博客地址：https://blog.csdn.net/sinat_21107433/article/details/102790445
+
+18.设计模式（十八）——命令模式
+
+博客地址：https://blog.csdn.net/sinat_21107433/article/details/102810123