为了促进学生对电路基础知识的深刻理解,本文结合电子技术数字电路部分理论知识,从电子技术实验教学角度,举例如何利用计数器74LS161来设计任意模数加法计数器,来论证实现数字电路功能方法的多样性。本文采取的实验与理论相结合的教学方法,更有利于学生对知识的熟练掌握与运用。 In order to promote students’ deep understanding of circuit basic knowledge, this paper combines the theoretical knowledge of digital circuit of electronic technology, from the perspective of electronic technology experimental teaching, for example, how to use the counter 74LS161 to design an arbitrary modulus addition counter to demonstrate the diversity of digital circuit functions and methods Sex. In this paper, the combination of experiment and theory teaching method is more conducive to students proficiency in the mastery and use of knowledge.