用MFC编写的读取DXF2004文件的一个小程序，希望能有所帮助，不过不是我自己写的-Read DXF2004 with MFC document prepared by a small program, I hope to be helpful, but not my own writing

自己编写的CAD看图软件程序包很小 觉对好用 图纸保证可以打开(CAD software package written by myself is very easy to use.)