设计模式2-简单工厂模式

#include <iostream>

enum class model {
    su7,
    modelY,
    M7
};

class car {
public:
    virtual void info() = 0;
    virtual ~car(){};
};

class MiSu7 : public car{
public:
    void info() override {
        std::cout << "a su7 car" << std::endl;
    }
};

class TeslaModelY : public car {
public:
    void info() override {
        std::cout << "a ModelY car" << std::endl;
    }
};

class AITOM7 : public car {
public:
    void info() override {
        std::cout << "a M7 car" << std::endl;
    }
};

class factory{
public:
    car* createCar(model m) {
        switch (m) {
            case model::su7:
                return new MiSu7();
            case model::modelY:
                return new TeslaModelY();
            case model::M7:
                return new AITOM7();
        }
    }
};

int main() {
    factory f;

    car *mycar = f.createCar(model::modelY);
    mycar->info();

    delete mycar;
    return 0;
}