int main(void)
{
Animal *animal = NULL;
animal = new Dog;
animal->cry();
animal->doWork();
cout << " -----" << endl;
Dog * dog = NULL;
dog = dynamic_cast<Dog*>(animal); //dynamic_cast是将父类指针转换成子类指针
if (dog != NULL) {
cout << "转换成功" << endl;
dog->cry();
dog->doWork();
}
else {
cout << "转换失败" << endl;
}
Cat *cat = NULL;
//想通过dynamic_cast 将animal转换成一个cat指针
cat = dynamic_cast<Cat*>(animal); //通过将animal指针转换成Cat指针
//尝试将一只狗转换成一只猫
if (cat != NULL) {
cout << "转换成功" << endl;
cat->cry();
cat->doWork();
}
else {
cout << "转换失败" << endl;
}
delete animal;
return 0;
}
