按“ＥＳＣ”键退出程序 按“上下左右键”可以加速或减速旋转 按“Ｌ”可以开关灯光效果 ；按“Ｂ”键可以开关透明效果；按“Ｆ”键可以选择帖图质量；按“Page up”和“Page down”缩放视图-Press " ESC"　key from the procedure　by " up and down around keys"　to speed up or slow down rotation　by " L"　to switch lighting effects　 by " B"　key to switch the effect transparent　by " F"　key to select the quality of帖图　by the " Page up"　and " Page down"　zoom view