我的程序是用C语言编的一个画图软件，满足以下几点： 用某种方法实现圆的生成算法。 实现橡皮筋直线、圆、矩形。 实现多边形裁剪。 实现基本几何变换（平移、旋转、缩放）。 实现Bezier曲线或B样条曲线。 最终呈现的结果是一个小型的交互式图形系统，用界面把所有功能串连起来。-the procedures I used the C language is part of a drawing software to meet the following points : the use of a certain method of generating algorithm round. Achieving rubber-band linear, circular and rectangular. Achieving polygon clipping. To achieve basic geometry transformation (translation, rotation, zoom). Achieving Bezier curve or B-spline curves. The final results show is a small interactive graphics system, with all the functional interface to link up.