本书结合目前应用非常广泛的C语言以及keil c51编译器，详细介绍单片机C语言编程的方法。本书通过大量应用实例对单片机资源及外围芯片进行详细介绍。

本书分为上下两篇。上篇侧重于介绍基础知识，主要有C51语言和C语言以及汇编语言的对比，单片机内部资源、扩展资源以及其编程等内容；下篇侧重于应用实例，通过实例，读者既可以在工作中进行类比编程，又可以开阔思路，提高实际工作能力。-This book combines a wide range of current applications, as well as C-language compiler keil c51, detailing Microcontroller C programming language method. Application examples in this book through a large number of resources and external to the microcontroller chip detail. The book is divided into two from top to bottom. Part focuses on introducing the basics, mainly C51 language and C language and assembly language contrast, MCU internal resources to expand programming and other resources, as well as its content　next focused on examples of application, by example, readers not only can be analogy work program, but also the broad ideas, enhance practical ability to work.