同学们在平时学习和解题中,经常会碰到这样的一类问题“一看似懂,一做就错;老师一点似明,再做又错”,这类问题成称之为“易错问题”,“易错问题”考查的知识点和数学能力不一定很难,但其中设置了很容易使学生形成错觉的知识障碍．本文对高中数学《集合、简易逻辑和函数》这一章中易错的问题进行归纳． In the usual learning and problem solving, the students often encounter such a type of problem: “A look seems to understand, one does it wrong; a teacher thinks a little, then do it again”, this type of problem is called “easy ”Wrong questions“ and ”Imprompt questions“ are not necessarily difficult to examine knowledge points and mathematics abilities, but they set up knowledge barriers that make it easy for students to form illusions. This article summarizes the error-prone problems in the chapters of high school mathematics, ”Collection, Simple Logic and Functions."