在同一个舞台上显示三个物体，分别是正八面体、贴纹理的老虎、空心圆柱，键盘上下左右键控制三个物体同时运动。-Shows three objects are regular octahedron, paste textures of tiger, hollow cylinder, keyboard up, down, left and right keys to control the three objects in motion at the same time on the same sta