程式16-1所示的GRAYS1程式没有使用Windows调色盘管理器，而尝试用正常显示的65级种阶作为从黑到白的多种彩色的「来源」。-formula shown in the 16-1 GRAYS1 programs do not use Windows palette manager, and to try to show the normal 65 kinds of bands as from black to white color with a variety of "sources."