程序为用采用51单片机实现的一个24小时循环显示程序，主要功能由时钟显示（00-00-00格式），时间调整功能程序采用定时查询方式实现时间更新，键盘查询方式实现时间调整-Procedures for the use of 51 with a single chip to achieve a 24-hour cycle display program, the main functions of the clock display (00-00-00 format), time to adjust from time to time query function of the procedures used to achieve time to update, query the keyboard means time to adjust. .