Our main work is following : ( 1 ) a toy model of gravity in microcanonical ensemble is investigated according to generalized statistical mechanics which is more suitable to gravitating system because of its long range and non - extensive features 主要工作如下： ( 1 )基于引力系统的长程性和非广延性，根据广义统计力学用微正则系综来讨论引力toy模型。
