说明：   linux内核编译步骤。对于linux新手来说，编译内核相对有一些难度，甚至不知道如何入手，我通过在网上收集这方面的资料,最终编译成功
(linux kernel compilation step. Compile the kernel for linux novice relative some difficulty, do not even know how to start, I gather this information through the Internet, eventually compile successfully)