一九七二年十一月间,随我系学员去齐齐哈尔纺织厂推广“优选法”,从实践中,连系《数学分析》课中的“函数概念”以及极限理论这一部分的教学内容,对“0618法”最优性的理论证明作过探讨。本文就是在每次只能做一个实验的情况下,对“0618法”最优性的证明。而且仅讨论单因素、单峰函数的情况。为此首先注意下面结果: In November 1972, with the students who went to Qiqihar Textile Factory to promote “Law of Choice”, in practice, connected with “Mathematical Analysis” in the course of “Function Concept” and the limit theory in this part of the teaching content, right The theoretical proof of the optimality of “0618 Law” is discussed. This article is the proof of the optimality of “0618” under the condition that only one experiment can be done at a time. And only single-factor, unimodal functions are discussed. First note the following result: