提供一个核心类,接口仅几个,方便外围开发,你可以在此基础上做一些扩展,如使其界面更美观,方块更美观等 class DyPanel :Panel { #region 类属性 private Timer t_slow,t_fast; private XY current_p, start_p; private XY []cur_square; private XY []afterChange_squar; private int width, height; private SolidBrus