老师偷偷塞给我

老师偷偷塞给我一份资料，封面写着《操作系统》，下面一行小字_橡皮擦，一个逗趣的互联网高级网虫-CSDN博客

csdn.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from csdn.net Daily Mail and Mail on Sunday newspapers.