切换屏幕在原始尺寸与全屏中切换，而且向你演示即使全屏文字也不会按比例放大，还有一个退出动画的按钮；不过你可能要DOWN回去之后才能看到它的效果-Switch the screen size and full-screen in the original switch, but also to the presentation you will not even full-screen text in proportion to enlarge, there is a quit button an