在VC6.0平台实现。从本程序可以了解到C＋＋虚函数的实现方法。是COM+技术中vtable虚函数表的基础实现。-in VC6.0 platform. From this program can understand C + + virtual function of the method. COM technology is the virtual function table vtable the basis of achievement.

用C++实现一个具体事例，形状作为基类，正方形，三角形等等作为派生类。来体现类的多态性，其中涉及多态，继承，虚函数的使用。-using a C++ example to illustrate polymorphism, virtual function and etc. The example has a base class of shape, and many concrete shapes as derived classes.

用C语言编写的虚拟内存控制程序，可以控制虚拟内存的大小-C language with the virtual memory control program, can control the size of virtual memory

C++多态实现例子，虚基类的使用，以及资源释放-C++ achieve polymorphism example, the use of virtual base class, and resource release

c++开发虚拟文件系统，支持用户管理，权限设置，虚拟系统与本机磁盘系统间的导入与导出功能，该系统拥有磁盘格式化，目录，文件创建，浏览，编辑，删除，等功能-C++ development of a virtual file system, support for user management, permissions settings, import and export functions of virtual system and the unit disk system, this sys