主要实现在proe模型中如何实现参数化建模的详细例子，对proe关于CAD部分的二次开发很有帮助-Mainly implemented in proe model example of how to implement a detailed parametric modeling proe secondary development of CAD part about helpful

类似于AotoCAD风格的绘图源程序框架，可以做二次开发-CAD draw

为vc++进行cad二次开发的arx实例,希望对新人有用,不错的-As a vc++ for secondary development of cad arx instance, hope useful to newcomers, pretty good