说明：  这是一本关于Intel 80C51 以及广大的51 系列单片机的书这本书介绍给读者一些 新的技术使你的8051 工程和开发过程变得简单
(This is a book about Intel 80C51 microcontroller and the general book of 51 series this book introduces readers to some new technology to make your 8051 project and the development process easier)