插值程序
........\hd1.m
........\hd2.m
........\l11.m
........\l12.m
........\l13.m
........\l14.m
........\lagr1.m
........\lch.m
........\moutain.m
........\plane.m
........\temp.m
........\wendu.m
........\xch11.m
........\xch12.m
........\xch13.m
........\xch14.m
........\xyz.mat
........\ych.m