程序实现按钮的多形态，能根据用户需要实现各种旋转，可以为编程新手学习。-program over the button shape, according to various user needs to achieve rotation can be programmed for newcomers to learn.

简单的自画SpinButton控件，其中的几个颜色定义自己修改一下，就可以编译了。

简单的VC例子。简单的vc应用的小例子，入门到基础知识的应用和理解。-VC simple example. Vc simple application of a small example, entry to the application of basic knowledge and understanding.