int main() {
Human *mark = new Human(5);
std::cout << "mark's age is " << mark->getAge() << std::endl;
Human *mark2 = (Human*)mark->clone();
std::cout << "mark2's age is " << mark2->getAge() << std::endl;
return 0;
}
int main()
{
Animal Lion;
Human jisu;
jisu.move();
jisu.setAge(22);
//jisu.parentAge(Lion);
std::cout << jisu.getAge() << std::endl;
return 0;
}