本刊2004年第7期发表的《一个排列组合问题的模型构建》一文,对解决分装组合应用问题确实有所帮助,尤其是在培养学生应用意识,提高解决实际问题的能力方面,具有十分重要的意义.在排列组合问题中,还有一类“某几个元素分别不在某几个位置上”的应用问题,也经常以不同的形式出现? The article “Model construction of a permutation and combination problem” published in the 7th issue of the magazine in 2004 is indeed helpful for solving the problem of repackaging and combination application, especially in cultivating student application awareness and improving the ability to solve practical problems. Important significance. In the problem of permutation and combination, there are still a series of application problems of “a few elements are not in a certain position”, and they often appear in different forms.