Many Mac users may not know，Mac computers have a hidden screen-rotating feature。by rotating the screen 90 degree，You can read e-books or movies while lying down。So，How to rotate the screen on a Mac computer? Let me share with you the specific method below，Let’s take a look together。 1. 打开系统偏好设置 •在左上角点击苹果图标，Choose to enter System Preferences。 2. 进入显示器设置 •在系统偏好设置中，Click on the "Display" option。 3. 选择旋转角度 •在显示器设置界面，Find the "Rotate" option。There are three rotation angles to choose from in the drop-down menu：90 degree、180 degree and 270 degree。选择所需的旋转角...