#02 简单工厂模式
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;
//抽象水果
class AbstractFruit{
public:
virtual void ShowName() = 0;
};
//苹果
class Apple : public AbstractFruit{
public:
virtual void ShowName(){
cout << "我是苹果!" << endl;
}
};
//香蕉
class Banana : public AbstractFruit{
public:
virtual void ShowName(){
cout << "我是香蕉!" << endl;
}
};
//鸭梨
class Pear : public AbstractFruit{
public:
virtual void ShowName(){
cout << "我是鸭梨!" << endl;
}
};
//水果工厂
class FruitFactory{
public:
static AbstractFruit* CreateFruit(string flag){
if (flag == "apple"){
return new Apple;
}
else if (flag == "banana"){
return new Banana;
}
else if (flag == "pear"){
return new Pear;
}
else{
return NULL;
}
}
};
void test01(){
//创建过程需要关心吗？ 直接拿来用
//FruitFactory* factory = new FruitFactory;
AbstractFruit* fruit = FruitFactory::CreateFruit("apple");
fruit->ShowName();
delete fruit;
fruit = FruitFactory::CreateFruit("banana");
fruit->ShowName();
delete fruit;
fruit = FruitFactory::CreateFruit("pear");
fruit->ShowName();
delete fruit;
delete factory;
}
int main(void){
test01();
return 0;
}
