turbo c 2.0实现的B样条反控制顶点算法 也就是画一条插值到所给点的样条 4阶，3次-turbo c 2.0 achieving B-spline vertices of the anti-control algorithm is a painting by interpolation to point to the kind of the four bands, three times

spline插值函数，可改变为spline函数，有助于spline图像插值算法解决-spline interpolating function, you can change the spline function helps spline image interpolation algorithm to solve