左键右键控制房子的转动,上键下键控制房子的大小。WSAD控制位置,MN键控制显示的层数,也可以拖动上房变量控制显示层数WSAD ,刚开始时等它建完WSAD control position, MN key to control the number of displayed floors, you can also use the upper room variable control to display the number of floors,At the beginning, wait for it to be completed。