说明：  手把手交你动手写操作系统的电子书. 有兴趣自己的可以下来看看，值得一看，不仅可以对操作系统有更深入的了解也可以帮助自己去写写。
(Hands-pay you do e-books to write the operating system. Are interested in their own can take a look at it, worth a visit, not only on the operating system can have a better understanding can also help themselves to write about.)