选择CAD实体，将实体的点位信息输出到一个文本文件中。对于刚接触ObjectARX编程的童鞋还是很有用的，可以清楚的了解CAD中部分类型实体的数据结构。VS2005+ObjectARX2007，个人编写。-Select CAD entities and write entities pts to a text file.It is helpful for those learn ObjectARX and C++.You can learn something about ARX Entiti