本文介绍了“心电图微机自动诊断系统”的诊断程序的设计考虑。我们提出了一种“逐类分级判决的带可信度的判决法”来编拟程序。所编程序具有运行快速、判断准确、逻辑清楚,能在给出诊断的同时给出可信度等优点。本系统能诊断的心电图病类有68种。诊断时间平均2秒钟。与医生结论相符的符合率达到95％以上。 This article describes the design considerations of the diagnostic program for the “Electrocardiogram Microcomputer Automatic Diagnosis System.” We propose a “method of classifying decisions by confidence with confidence” to program. The compiled program has the advantages of fast operation, accurate judgment and clear logic, which can give credibility while giving diagnosis. The system can diagnose 68 kinds of electrocardiogram diseases. The average diagnosis time is 2 seconds. Conformity with the doctor’s conclusion of more than 95%.