“计”和“诡”在《孙子》一书中不仅是非常重要的两个概念,而且也是断明情势的重要方法。然而,这些概念已变得含混不清,这些方法也已逐渐失传。究其原因,是由于对这些概念的误解所致。本文分为四部分,是以对此问题有深入理解的学者们的研究结果为基础进行的。 引言部分闸述这篇文章的目的与重要性。 “Count” and “trick” in the book “The grandson” is not only two very important concepts, but also an important way to clarify the situation. However, these concepts have become obscure and these methods have also been gradually lost. The reason is due to the misunderstanding of these concepts. This article is divided into four parts and is based on the findings of scholars who have a deep understanding of this issue. The introduction describes the purpose and importance of this article.