粒子群算法，通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优-Swarm optimization, through fitness to　uate the quality of the solution, but it' s simpler than genetic algorithm rule, it does not have the genetic algorithm " cross"　(Crossover) and " variation"　(Mutation) operation, follow it through to the current search to find the optimal value of the global optimum