标签:工厂模式
通过大话设计模式一书学习后,c++编写的设计模式代码:
// OOTest.cpp : 定义控制台应用程序的入口点。 // #include "stdafx.h" #include "Operation.h" #include "OperationFactory.h" int _tmain(int argc, _TCHAR* argv[]) { double resurt=0; OperationFactory factory; Operation *father = factory.createFactory('+'); father->setAB(2,3); resurt = father->getResurt(); cout << "add" << resurt << endl; system("pause"); return 0; } ---------------工厂类----------- #pragma once #include "iostream" using namespace std; #include "Operation.h" #include "OperationAdd.h" #include "OperationSub.h" class OperationFactory { public: OperationFactory(void); ~OperationFactory(void); Operation * createFactory(char operation); }; #include "StdAfx.h" #include "OperationFactory.h" OperationFactory::OperationFactory(void) { } OperationFactory::~OperationFactory(void) { } Operation * OperationFactory::createFactory(char operation) { Operation * oper = NULL ; switch(operation) { case '+': oper = new OperationAdd(); break; case '-': oper = new OperationSub(); break; default: cout << "err" << endl; } return oper; } ---------------父类----------- #pragma once class Operation { public: Operation(void); virtual ~Operation(void); virtual double getResurt(); void setAB(double numA, double numB); public: double mNumberA; double mNumberB; }; #include "StdAfx.h" #include "Operation.h" Operation::Operation(void) { } Operation::~Operation(void) { } double Operation::getResurt() { return 0; } void Operation::setAB(double numA, double numB) { this->mNumberA = numA; this->mNumberB = numB; } ---------------ADD类----------- #pragma once #include "operation.h" class OperationAdd : public Operation { public: OperationAdd(void); ~OperationAdd(void); double getResurt(); double getA(); }; #include "StdAfx.h" #include "OperationAdd.h" OperationAdd::OperationAdd(void) { } OperationAdd::~OperationAdd(void) { } double OperationAdd::getResurt() { return mNumberA+mNumberB; } double OperationAdd::getA() { return mNumberA; } ---------------SUB类----------- #pragma once #include "operation.h" class OperationSub : public Operation { public: OperationSub(void); ~OperationSub(void); double getResurt(); }; #include "StdAfx.h" #include "OperationSub.h" OperationSub::OperationSub(void) { } OperationSub::~OperationSub(void) { } double OperationSub::getResurt() { return mNumberA-mNumberB; }
标签:工厂模式
原文地址:http://blog.csdn.net/leeboy_wang/article/details/38338657