Chapter IV data abstraction ---- "C ++ programming ideas"

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1 Pocket C library

2 corresponding problem

3 Basic Object

　　C ++ allows any type from pointer void *

4 What is the object

5 abstract data types

6 Object details

7 file format

　　Possible problems: If a struct declaration in a header file, it is possible to include this header file multiple times in a compiled program　

      #ifndef

　　#define XXXXX

　　struct stack{}*head;

　　#endif

　　Header file namespace: using namespace std;

8 nested structure

#ifndef xxx
#define xxx
struct stack{
   struct link{}*head;
   void ..... 
};
#endif

Reproduced in: https: //my.oschina.net/u/204616/blog/545287