用PSO算法写的一个小例子，用来解决无约束优化问题，是人工智能的一个小例子，但是里面只有PSO算法，初学写的。希望大家多多提意见-To write a small example of the PSO algorithm used to solve unconstrained optimization problems, is a small example of artificial intelligence, but there is only the PSO algorithm, begi