说明：  Linux学习基础 方法是多动手、动脑，学习时要经常与Windows进行对比。建议你先安装RedHat Linux，然后练习如何配置它，如何使用Linux命令
(Linux based approach to learning is a multi-hands, brain, learning when compared with Windows. Suggest that you install RedHat Linux, and then practice how to configure it, how to use the Linux command)