排列组合问题历来是高中数学教学的一个难点,同时为高考的必考内容.其思考方法独特,求解思路新颖,但解题中极易出现“重复”或“遗漏”的错误.而提高学生解决排列组合问题的有效方法是题型与解法的归类、认别模式.熟练应用,以下介绍八类典型排列组合题的解题策略. The problem of permutation and combination has always been a difficult point in high school mathematics teaching. At the same time, it is a must-examination content for the college entrance examination. It has a unique way of thinking and a novel solution. However, it is prone to “repeated” or “missing” mistakes in solving problems. The effective method of permutation and combination problem is the classification and identification mode of question type and solution. Skilled application, the following describes the problem solving strategies of the eight typical permutations and combinations.