这是一个用java语言把图数据结构转换为链状数据的例子。把游戏《赛尔号》里的16种属性相克的复杂关系转换成100多个“食物链”的关系。-This is a java language to graph data structure into a chain of data examples. Converting the complex relationship game "Purcell number" in the 16 kinds of attributes of the relation