成功的个案研究既需要一些生动出色的正面案例,也需要分析一些存在缺陷的反面材料.从思维的深刻性、批判性以及自身素质提升的角度上看,“反例”的个案研究比“正例”更具有启示性.本文从研究命题的题设、结论及解题过程入手谈谈如何合理地构建反例,供参考. Successful case studies need not only vivid and outstanding positive cases, but also need to analyze some negative aspects. From the perspective of the profoundness of the thinking, criticality, and the improvement of one’s own qualities, the case studies of “counter-examples” are more positive than “positive examples”. "More inspiring. This article from the study of propositions, conclusions and problem solving process to talk about how to reasonably construct counterexamples for reference.