采用VC++编写访问数据库非常麻烦，我便写了一个通过ado访问所有的数据库的非常简单的类，该类接口非常简单，但可以满足你访问数据库的绝大部分的应用。-Used VC++ Prepared to access the database is very troublesome, I would write a through ado access to all of the database very simple categories, such interface is very simple,