说明：  这以最为流行的80C51 单片机为例来学习单片机的C 语言编程技术共分六章，每章一个专题，以一些待完成的任务为中心，围绕该任务介绍 C 语言的一些知识，每一个任务都是可以独立完成的，每完成一个任务，都能掌握一定的知识，等到所有的任务都完成后，即可以完成C 语言的入门工作。
(This is in the most popular 80C51 microcontroller as an example to learn microcontroller C-language programming is divided into six chapters, each devoted to one topic, with some pending tasks as the center, around the task of introducing some knowledge of C language, each task can be completed independently, and each completed a task, be able to master certain amount of knowledge, until all tasks are completed, which can complete the C-entry work.)