int main(int argc, const char * argv[]) {
// insert code here...
std::cout << "Hello, World!\n";
Animal *animal = new Animal();
animal->run();
Animal *dog = new Dog();
dog->run();
#if 0
// can not cast 'Cat' to its private base class 'Animal' \
私有继承的时候不能转换成基类,同样，保护继承也不能转换，只有共有继承可以。\
int main()
{
Animal *obj;
cout<<"Dog Object\n";
obj = new Dog;
obj -> sleep();
obj -> run();
obj -> eat();
delete obj;
cout<<"Horse Object \n";
obj = new Horse;
obj->sleep();
obj->run();
obj -> eat();
delete obj;
return 0;
}
void test(Animal &a) {
a.run();
}
/* 类型通用 损失个性 */
void testAnimal(Animal& a){
a.run();
// 恢复个性
}
