基于STC89C1的时钟显示程序，带有时间校准和闹钟功能，同时可以进入省电模式，6个数码管分别显示小时，分钟，和秒钟-Based STC89C1 clock display program, with a time calibration and alarm clock function, and can enter the power saving mode, six digital tubes were displayed hours, minutes, and seconds