说明：  教你如何用VC开发GIS系统，书中内容：VC基础，VC数据库，GIS矢量图形开发，GIS空间数据库，vc图形处理，图元的序列化，等。
(Teach you how to use VC to develop GIS systems, the book contents: VC basis, VC database, GIS vector graphics development, GIS spatial database, vc graphics, graphic element of the sequence, and so on.)