中文说明：基于matlab的微粒群工具箱，算法模型中引入收缩因子，收敛速度有所提高，但对高维函数的优化效果仍然不理想。
English Description：
Based on the particle swarm optimization toolbox of MATLAB, contraction factor is introduced into the algorithm model, and the convergence speed is improved, but the optimization effect of high-dimensional function is still not ideal.