是学习POSTGIS的入门笔记，附有截图。是入门级的最佳参考，当然也引用他人的一些材料。-It is to learn POSTGIS introductory notes, with a screenshot. The best reference is the entry-level, of course, also quoted some of the material to others.

这是我亲自写的一个在GIS地图用的截图的东东，很简单实用，快开帐号吧，天呐。-This is what I personally wrote a GIS map with the Dongdong screenshot, it is simple, practical, quick to open your account, God.

AE基于VB的桌面GIS开发，包括模块设计，主要代码，几部分截图-AE based on VB desktop GIS development