本文介绍利用插入变量卡诺图原理设计移位寄存器的方法,所谓插入变量卡诺图,即卡诺图中不仅可以插入“0”、“1”和无关项“φ”,而且可以插入逻辑变量和逻辑表达式,所以说,它是卡诺图的一种扩展.利用此原理不仅可以简化卡诺图的大小(即方格数),而且可以帮助我们进行较复杂的逻辑电路设计.首先我们对插入变量卡诺图原理加以介绍,然后利用此原理论述移位寄存器的设计. This paper introduces the method of designing a shift register by using the principle of inserting a variable Karnaugh map. The so-called insertion diagram Karnaugh map, that is, a Karnaugh map can not only insert “0”, “1” and irrelevant “φ”, but also insert logical variables And logical expression, so it is an extension of Carnot map, which not only can simplify the size of canon diagram (that is, the number of squares), but also help us to design more complicated logic circuit. First of all, we Introduce the principle of inserting variable Karnaugh map and then use this principle to discuss the design of shift register.