中文说明：
改进的差分粒子群算法，并用于求函数极值，程序中分别于DE PSO 蛙跳进行对比，结果显示，改进的差分粒子群更好。
English Description：
Improve the difference of particle swarm optimization (PSO) algorithm, and applies it to the function extreme value, respectively in the program in DE, comparing the PSO leapfrog results show that the improved differential particle swarm is better.