此电子钟设计是利用AT89S51CPU进行设计，此电子钟可以显示小时、分钟、秒功能，可以进行时间切换、有五种模式、可以计时、秒表、闹钟等功能-This design is the use of electronic bell AT89S51CPU design, this electronic clock can display hours, minutes, seconds functions, can be time to switch, there are five models, can