本代码是《C／C++程序员实用大全》的配套代码。网络转载

				#include 
				
				class Base 
				{
				 public:
				   Base(void) { cout 				   int data; 
				};
				
				class Derived:public Base 
				{
				 public:
				   Derived(void): Base() 
				    { cout 				};
				
				void main(void)
				 {
				   Derived object;
				   object.data = 5;
				   cout 				 }