这程序是关系性质的判断，它能判断自反，对称，传递三种关系性质。这是学完《离散数学》后课程设计中的一个题目，我自己写的。-This procedure is to determine the nature of the relationship, it can determine the reflexive, symmetrical, three pass nature of the relationship. This is End of Study " Discrete Mathema