抽象函数通常是指没有给出函数的具体解析式,只给出了该函数的部分性质或其他条件的函数,这类问题的解决常涉及到函数的概念和各种性质,因而具有抽象性、综合性和技巧性等特点,它既是教学中的难点,又是历年高考的热点,本文从八个方面进行归纳整合,以增强知识的系统性. An abstract function usually refers to a specific analytical formula that does not give a function, and only gives a function of part of the function or other conditions. The solution of such a problem often involves the concept and various properties of the function, and therefore it is abstract, Comprehensive and skillful characteristics, it is not only a difficult point in teaching, but also a hot spot in the college entrance examination over the years. This article is summarized from eight aspects of integration, in order to enhance the systematicness of knowledge.