中文说明： 权重改进粒子群算法中的随机权重法，将标准PSO算法中设定w为服从某种随机分布的随机数，这样一定程度上可从两方面克服w的线性递减所带来的不足
English Description：
&Weight improves the random weight method of particle swarm optimization, and sets w as a random number that obeys a certain random distribution in the standard PSO algorithm, which can overcome the shortcomings brought by the linear decline of w to a certain extent