自己写的显示Bezier曲面的算法,比较乱,包括注释掉的opengl的Nurbs显示,但是效果不错,自认为与opengl的显示Nurbs函数的显示效果差不多,希望有用-himself wrote the show Bezier surface algorithm, more chaotic. comment out the opengl including the Nurbs, but worked quite well. since that show with opengl Nurbs fu