ex5-3-1.cpp

来自「一些学习c++的例题」· C++ 代码 · 共 31 行

#include <iostream>

using namespace std;

class baseClass
{
public:
   baseClass() { cout << "I'm parent.\n"; }
   ~baseClass() { cout << "Parent object has been destructed.\n"; }

   void SayHello() { cout << "Hello!\n"; }
};

class derivedClass : public baseClass
{
public:
   derivedClass() { cout << "I'm child.\n"; }
   ~derivedClass() { cout << "Child object has been destructed.\n"; }

   void SayHello() { cout << "Aloha!\n"; }
};

void main()
{
   derivedClass d;
   baseClass *pd = &d;
   baseClass& dr = d;

   pd->SayHello();
   dr.SayHello();
}