Attractors引力点是一个很有创意的简洁的flash程序。利用各个固定点上的不同的引力方程式来改变无数小颗粒的轨道。固定点能任由用户在运行中摆设。-Attractors gravitational point is a very creative brief flash procedures. Use various fixed points on the different gravitational equation to change countless small particle