功能见文档：综合地运用所学的 《数字逻辑》的基本知识，使用电脑EWB仿真技术，独立完整地设计一定功能的电子电路。-function see Document : Comprehensive land use study of the "digital logic" of basic knowledge, EWB use of computer simulation technology, independence and integrity to the design of certain functional electronic circuit.