说明：  利用Maltab脚本M语言，使用GA遗传算法优化BP神经网络阈值，文件包括：ga_bp和gaot工具箱，首先在maltab中利用setpath设置加载gaot工具箱，然后在ga_bp文件夹下运行！
(Using Maltab script M language, we use GA genetic algorithm to optimize BP neural network threshold. The files include ga_bp and GAOT toolbox. First, we use setpath to install GAOT toolbox in maltab, then run under ga_bp folder.)