说明：  PSO算法是基于群体的，根据对环境的适应度将群体中的个体移动到好的区域。然而它不对个体使用演化算子，而是将每个个体看作是D维搜索空间中的一个没有体积的微粒（点），在搜索空间中以一定的速度飞行，这个速度根据它本身的飞行经验和同伴的飞行经验来动态调整
(PSO algorithm is based on the group, according to the environment to the fitness of the individual to move to the area.However, it should not be given to individual evolution operator, but each individual as a D D without a volume of particles in search space (or points), in the search space at a certain speed, the speed according to its own flight experience and companion flight experience to dynamic adjustment)