实现了b样条曲线、曲面的绘制，包括多种形式的b样条，并可以对输入进行修改。(The drawing of B spline curve and surface, including B spline in various forms, can be modified.)

利用matlab绘制自定义的B样条曲线和曲面，有例子(Using matlab to draw custom B-spline curves and surfaces, some examples are given.)