麦比乌斯圈是拓扑学上的一个概念。取长方形纸带一条 ,扭曲一次 ,然后使两端相连进行粘合 ,所得到的曲面称为麦比乌斯圈。性质 :在麦比乌斯圈上某点环行一周回到原来的位置时 ,法线变为相反 ,圆周的环绕方向也变为相反方向。百年来中国文学的发展正是麦比乌斯圈上的位移运动 ,通过对这一现象的描述和分析 ,概括出二十世纪中国文学发展的两条整体线索 :一是救世主题 ;二是文学独立 The Mobius cycle is a topological concept. Take a strip of rectangular paper, twist once, and then connect the two ends of the bond, the resulting surface known as the Mobius loop. Nature: When a certain point in the circle of Mobius is looped back to its original position, the normal becomes opposite, and the circumferential direction of the circle changes to the opposite direction. The development of Chinese literature in the past century is exactly the displacement movement in the circle of Mobius. By describing and analyzing this phenomenon, two general clues of the development of Chinese literature in the 20th century are summarized: one is the salvation theme; the other is literature independent