社会学认为，人的社会关系有四种，依次是血缘关系、地缘关系、业缘关系，第四种关系就是学缘关系。最近几年，同学会、校友会之类的活动层出不穷，联络感情只是其中的一个方面，越来越多的人认识到“同学就是生产力”，学缘关系的价值正在不断被挖掘，并无限地发扬光大。随着终身学习的观念逐渐深入人心，越来越多的在职人士会选择一个或者几个培训班进行自我充电，于是 Sociological view, there are four kinds of social relations, followed by kinship, geopolitical, karma relationship, the fourth relationship is learning relationship. In recent years, students, alumni associations and other kinds of activities after another, contact feelings is only one aspect, more and more people realize that “classmates is productivity”, the value of learning relationship is constantly being excavated and unlimited Develop. With the concept of lifelong learning gradually reaching the hearts of the people, more and more working people will choose one or several training courses for self-charging, so