C++实现简单工厂模式

/*
简单工厂模式：跟工厂模式很类似，不过在函数里面加上了逻辑判断
Created by Phoenix_FuliMa
*/

#include <iostream>
using namespace std;

class Product
{
public:
virtual void display() = 0;
};

class Product1:public Product
{
public:
void display()
{
cout<<"I am product1..."<<endl;
}
};

class Product2:public Product
{
public:
void display()
{
cout<<"I am product2..."<<endl;
}
};

class Factory
{
public:
Product *CreateProduct(const char *type)
{
if(strcmp(type, "product1") == 0)
{
return new Product1;
}
else if(strcmp(type, "product2") == 0)
{
return new Product2;
}
else
{
return NULL;
}
}
};

int main()
{
Factory *fac = new Factory();

Product *product1 = fac->CreateProduct("product1");
Product *product2 = fac->CreateProduct("product2");

product1->display();
product2->display();

system("pause");
return 0;

}