有关贝塞尔曲面的显示，主程序例如bezier_surface_display.m，只要导入节点和矩形数据就可以了。 例如bezier_surface_display ( teacup_nodes.txt , teacup_rectangles.txt )-Bezier surface on the display, the main program such as bezier_surface_display.m, as long as the nodes and rectangular d