一个简单的cad软件源码，代码内容明了清晰，文件分装在各个文件类中使得读着很容读懂，并且类名定义也使用全名，而不是缩略次，整个代码内容很明了-A simple cad software source code, the code clearly understand the content, documents in various file aliquots class makes reading very content to read, and the definition of the

在Vc环境下 仿CAD编程源代码 不错的源码 很好的-In the Vc environment imitation CAD programming source code, a good source of good