n次贝塞尔曲线及三次b样条曲线的绘制，使用自己编写的curve类，实现曲线上点坐标的计算与绘制，曲线点坐标的计算使用递归算法。点击左键设定控制点，之后点击右件绘制曲线。-n Bessel curve and three b-spline curve mapping, prepared to use their own type of curve, curve coordinates of the point on the calculation and drawing, curve coordi

对于8个顶点B样条曲线进行拟合，采用有理三次B样条算法,8 vertex for B-spline curve fitting, using rational cubic B-spline algorithm