说明：  讲述了如何用C语言编写八位嵌入式MCU程序,内容涉及数据类型和变量,函数库,优化和测试嵌入式C语言程序等,书中穿插有样例工程.
(About how to use C language embedded MCU 8 program, covering data types and variables, functions, optimizing and testing procedures, such as embedded C language, the book there are sample projects interspersed.)