HJ单片机中一些最基本的程序中的C源码，包括了点亮第一个发光二极管，独立矩阵键盘的实验等一下基本的程序，编写环境为C-HJ chip in some of the most basic program in C source code, including the first light emitting diode, keyboard matrix independent experiments Wait basic procedures, the preparation of the env