数字电子钟方案简介说明书数字电子钟不但可以显示当前的时间，而且可以显示日期、农历、以及星期等，给人们的生活带来了方便。另外数字钟还具备秒表和闹钟功能，且闹钟铃声可自选，-Digital electronic clock program profiles specification digital electronic clock not only can display the current time, and can display the date, lunar, as well as t