Fullscreen and save to file整个屏幕并保存为文件 control+command+shift+3Fullscreen and save to clipboard整个屏幕并复制到粘贴板 control+command+shift+3 Portion of the screen and save to file 部分区域并保存为文件 command+shift+4Portion of the screen and save to clipboard部分区域并复制到黏贴板 command+shift+4 Apple – How To ( for more details ):https://support.apple.com/en-us/HT201361            Apple——如何做（了解更多详情）：https://support.apple.com/zh-cn/HT201361