C/C++使用技巧1001例一书的配套代码

				#include 
				
				class Outer {
				 public:
				   Outer(void) { cout 				                 outer_data = 2002; };
				   class Inner {
				     public:
				       Inner(void) { cout 				                     inner_data = 1001; };
				       void show_data(void) { cout 				     private:
				       int inner_data;
				   } inside_stuff; 
				   void show_all_data(void) { inside_stuff.show_data(); 
				                              cout 				 private:
				   int outer_data;
				};
				
				void main(void)
				 {
				   Outer my_data;
				
				   my_data.show_all_data();
				 }