说明：  实验名称: LED驱动程序实验 实验目的: 初步学习对单片机端口的操作,加深对AVR单片机端口寄存器的理解 实验现象: LED数码管从左向右依次亮,然后依次灭 环 境: ICCAVR6.31A
(Experiment name: LED driver for the experiment was the experiment: a preliminary study of single chip port operation, better understanding of the AVR port single-chip registers to understand the phenomena: LED digital tube light in order from left to right, to be followed to eliminate the environment: ICCAVR6. 31A)