本文对全加器的各种特性进行了较完整的分析研究,提出了一些应用全加器的非常规设计方法。文中提出的全加器的通用特性,首次阐明了全加器的通用逻辑功能,从而为全加器应用于一般逻辑设计建立了理论基础。此外,用全加器实现对称函数等设计技术的研究,可能成为传统的逻辑设计技术的一个补充。 In this paper, a complete analysis of various characteristics of full adders is made, and some unconventional design methods using full adders are proposed. The general characteristics of the full adder proposed in this paper, for the first time, elucidate the universal logic function of the full adder, so as to establish the theoretical basis for the application of full adder in the general logic design. In addition, the use of full adders to design symmetric functions and other design techniques may become a complement to traditional logic design techniques.