add Decorator Pattern

10.DecoratorPattern/2.Code/DecoratorPattern.h

@@ -0,0 +1,93 @@
+#ifndef __DECORATOR_PATTERN_H__
+#define __DECORATOR_PATTERN_H__
+
+//抽象构件
+class Component
+{
+public:
+	Component(){}
+	virtual void operation() = 0;
+};
+
+//具体构件类
+class Phone :public Component
+{
+public:
+	Phone(){}
+	void operation(){
+		printf("手机\n");
+	}
+};
+
+//抽象装饰类
+class Decorator :public Component
+{
+public:
+	Decorator(){}
+	Decorator(Component *c){
+		this->component = c;
+	}
+	void operation(){
+		this->component->operation();
+	}
+	Component *getComponent(){
+		return this->component;
+	}
+	void setComponent(Component *c){
+		this->component = c;
+	}
+private:
+	Component *component;
+};
+
+//具体装饰类：手机壳
+class DecoratorShell:public Decorator
+{
+public:
+	DecoratorShell(){}
+	DecoratorShell(Component *c){
+		this->setComponent(c);
+	}
+	void operation(){
+		this->getComponent()->operation();
+		this->newBehavior();
+	}
+	void newBehavior(){
+		printf("装手机壳\n");
+	}
+};
+
+//具体装饰类：手机贴纸
+class DecoratorSticker :public Decorator
+{
+public:
+	DecoratorSticker(){}
+	DecoratorSticker(Component *c){
+		this->setComponent(c);
+	}
+	void operation(){
+		this->getComponent()->operation();
+		this->newBehavior();
+	}
+	void newBehavior(){
+		printf("贴卡通贴纸\n");
+	}
+};
+
+//具体装饰类：手机挂绳
+class DecoratorRope :public Decorator
+{
+public:
+	DecoratorRope(){}
+	DecoratorRope(Component *c){
+		this->setComponent(c);
+	}
+	void operation(){
+		this->getComponent()->operation();
+		this->newBehavior();
+	}
+	void newBehavior(){
+		printf("系手机挂绳\n");
+	}
+};
+#endif //__DECORATOR_PATTERN_H__

10.DecoratorPattern/2.Code/main.cpp

@@ -0,0 +1,37 @@
+#include <iostream>
+#include "DecoratorPattern.h"
+
+int main()
+{
+	printf("\nJungle的第一个手机：\n");
+	Component *c;
+	Component *com_Shell;
+	c = new Phone();
+	com_Shell = new DecoratorShell(c);
+	com_Shell->operation();
+
+	printf("\nJungle的第二个手机：\n");
+	Component *c2;
+	Component *com_Shell2;
+	c2 = new Phone();
+	com_Shell2 = new DecoratorShell(c2);
+	Component *com_Sticker;
+	com_Sticker = new DecoratorSticker(com_Shell2);
+	com_Sticker->operation();
+
+	printf("\nJungle的第三个手机：\n");
+	Component *c3;
+	Component *com_Shell3;
+	c3 = new Phone();
+	com_Shell3 = new DecoratorShell(c3);
+	Component *com_Sticker2;
+	com_Sticker2 = new DecoratorSticker(com_Shell3);
+	Component *com_Rope;
+	com_Rope = new DecoratorRope(com_Sticker2);
+	com_Rope->operation();
+
+	printf("\n\n");
+
+	system("pause");
+	return 0;
+}

README.md

@@ -47,4 +47,8 @@
 
 12.设计模式（十二）——组合模式
 
-博客地址：https://blog.csdn.net/sinat_21107433/article/details/102712738
+博客地址：https://blog.csdn.net/sinat_21107433/article/details/102712738
+
+13.设计模式（十三）——装饰模式
+
+博客地址：https://blog.csdn.net/sinat_21107433/article/details/102733023