Design mode (4)---decoration mode

1 //Decorator.cpp: Defines the entry point of the console application. 2 //3 4#include"stdafx.h"5#include <memory>6#include <string>7#include <iostream>8 using namespacestd;9 Ten class Person One { A  Public: -Person (stringName =""): name_ (name) -     {} the     Virtual voidShow () -     { -cout <<"My name is:"<< name_ <<Endl; -     } + protected: -     stringname_; + }; A  at classFinery: Public Person - { -  Public: -     voidDecorator (shared_ptr<person>Person ) -     { -Person_ =Person ; in     } -     Virtual voidShow () to     { +         if(Nullptr! =person_) -         { thePerson_->Show (); *         } $     }Panax Notoginseng protected: -Shared_ptr<person>Person_; the }; +  A classTshirt: PublicFinery the { +  Public: -     Virtual voidShow () $     { $cout <<"This is tshirt."<<Endl; -Person_->Show (); -     } the }; - Wuyi classSneaker: PublicFinery the { -  Public: Wu     Virtual voidShow () -     { Aboutcout <<"This is sneaker."<<Endl; $Person_->Show (); -     } - }; -  A intMain () + { theAuto person = make_shared<person> ("Cauchy"); -Auto Tshirt = make_shared<tshirt>(); $Auto sneaker = make_shared<sneaker>(); theTshirt->Decorator (person); theTshirt->Show (); theSneaker->Decorator (tshirt); theSneaker->Show (); -  in     return 0; the}

Design mode (4)---decoration mode