程序名称： WINNT-2000下直接写端口 的VC++源程序 程序类型：单片机设计软件

keil 软件下写的单片机程序，在数码管上显示时钟.单片机类型为80C52，数码管为六个-this program is written by keil which is used to write code to MCU. Its fuction is to display the time on digital LED.

可以用keil软件编程，并且是学习单片机必用的一款软件，它再加上一各烧录软件就组合了学习单片机 的前提(Keil software programming can be used, and is to learn a microcontroller must use a software, it plus a burning software on the combination of learning SCM premise)