c++多态

 

class Parent
{
public:
 virtual void fun()
 {
  cout << "Parent" << endl; 
 }
};

class Child : public Parent
{
public:
 void fun()
 {
  cout << "Child" << endl;
 }
};

int main()
{
 Parent *pP = new Parent();
 Parent *pC = new Child();

 pP->fun();
 pC->fun();
 return 0;
}