说明：   这是一个分别用Bezier曲线和B样条曲线进行曲线拟合的例子 程序用VB6.0中文版编写 例子中需要一个窗体和一个按钮（使用默认的名字） 在本例中，黑色的线条是对坐标系上各点的直接连线 黄色的线仅对点间连线进行近似拟合，并不通过每一个点，使用的是B样条曲线 蓝色的线通过除第一个点和最后一个点之外的每一个点，使用的是Bezier曲线
(This is a difference with Bezier curves and B-spline curves curve fitting example of the procedures used to prepare the Chinese version VB6.0 need an example of the form and a button (use the default name), in this case, the black lines of the coordinates of the point on the direct connection of the yellow line between the only point Approximate line fitting, does not pass through every point, the use of B-spline curve through the blue line in addition to a final point and a point outside of each one, using a Bezier curve)