后台自动监测并复制U盘里指定文件到指定目录。Alt+N 隐藏界面，Alt+M显示。启动后可以按Alt+Tab键调出界面（非隐藏情况下）-Background automatically monitor and U disk copy specified file to the specified directory. Alt+N hide interface, Alt+M display. You can press the button to adjust Alt+Tab After star