本文引入几种比较运算,并讨论了它们的表示、有关性质及其在处理逻辑函数中的应用。此外,还提出了使用晶体管的比较逻辑门及通用比较逻辑门的设计。作者认为,由于比较运算揭示了电路中开关元件的作用实质,因此,充分利用晶体管功能的比较逻辑单元,可在数字集成电路的设计中得到应用。 In this paper, we introduce several kinds of comparison operations and discuss their representations, their properties and their applications in handling logic functions. In addition, the use of transistors to compare the logic gate and the general comparison logic gate design. The author believes that the comparative logic unit, which makes full use of the function of the transistor, can be applied in the design of digital integrated circuits because the comparison operation reveals the essence of the switching elements in the circuit.