CAA

代码说明：

  CAA二次开发的基础教程，其中属于CAA开发的入门教程，图形界面开发；建立窗口相关及回调函数的编辑。(The basic course of CAA secondary development, which belongs to the introductory course of CAA development, the development of graphical interface, and the editing of window correlation and callback function.)