抽象函数[未给出具体的函数形式(或虽给出具体的形式,但其考查目的更具抽象意义)的函数]问题一直是近几年高考常考不衰的热点题型.2008年全国高考数学试卷中出现了四类有关抽象函数的考题,以下对此分类概说.一、概念类已知条件中涉及抽象函数的有关概念,如函数的定义、函数的奇偶性、函数 Abstract function [Functions that do not give a specific function form (or a specific form, but its examination purpose is more abstract)] Problem has always been a hot topic in the college entrance examination in recent years. 2008 National There are four types of questions about abstract functions in the college entrance examination mathematics test paper, which are summarized in the following categories. First, concepts related to abstract functions in the known conditions of the concept class, such as function definition, function parity, function