通过VC++6.0和OpenGL绘制了可以调节的Bezier曲线和曲面以及Nurbs曲线曲面，其参数可以人为通过对话框设置。-Through VC++ 6.0 and OpenGL rendering can adjust the Bezier curves and surfaces, as well as Nurbs curves and surfaces, and its parameters can be set up artificially through the dialog box