说明：  mega16的基本程序（跑马灯、AD转换、外部按键中断、定时中断、范围选择、串口通信、驱动数码管、LCD1602），适合初学者的简单程序，附有proteus仿真图
(mega16 the basic program (Marquee, AD conversion, external key interrupt, timer interrupt, range selection, serial communications, drive digital tube LCD1602), suitable for beginners simple program, with proteus simulation map)