STC 单片机 数码管显示动态数据 包括延时子程序，8位数码管分别显示不同数字，这种扫描显示方式成为动态扫描，并不停变化赋值-STC microcontroller digital display dynamic data Including delay subroutine, 8 digital tube display different numbers, such as dynamic scan scan display mode, and constantly changing