时钟与报警器源程序，功能强大，资源少。操作简便-Clock and alarm source, powerful, less resources. Simple

一个带闹钟的分为12 和24 小时的数字时钟。只有24小时有闹钟，都是原件例化，用的是位置关联-With alarm clock into a 12- and 24-hour digital clock. Only 24-hour alarm, all of the original case, the location associated with the

VHDL语言编写的带整点报时的8段数码管数字时钟-Digital clock VHDL language with hourly chime