/* 范例：17-4 */
#include <iostream.h>
class A
{
  public:
    int b;
    void pp(){cout << this << " in class A\n";}
};

class B:public A
{
};

void main()
{
  B obj1,obj2;

  cout << sizeof(A) <<" " << sizeof(B)<<"\n";

  cout << &obj1 << " ";
  obj1.pp();
  cout << &obj2 << " ";
  obj2.pp();

  getchar();
}

程序執行結果：
4 4
0065FE00 0065FE00 in class A
0065FDFC 0065FDFC in class A