数字电路的设计，和学习，包括设计原理和程序，和数子电路的课件-Digital circuit design, and learning, including the design principles and procedures, and several sub-circuit of the courseware

1．学习一般的数字电路设计； 2．学习数码管的输出方法； 3．进一步熟悉Quartes II集成开发软件的使用以及PH-1V型实验装置的使用 -1. Learning in general digital circuit design 2. The output of digital learning methods 3. Become more familiar with Quartes II integrated development of software use, an