一个用VB编写的程序，是b样曲线的经典示范，具有相关的放大缩小的功能，非常的实用-A program written by VB is a b-like curve of the classic model, with associated zoom function is very useful

deboor算法，构成B样条曲线，实现B绘图计算功能-deboor algorithm constituting B spline curve to achieve B graphics computing

用户交互输入若干控制点后，自动生成由这些控制点决定的准均匀三次B样条曲线。要求同时显示每段Bezier曲线的控制多边形。-The user interactive input after a certain number of control points, automatically generated is decided by the control points of quasi uniform B spline curve three times. Also show the Bezi