说明：  反向传播网络(Back-Propagation Network，简称BP网络)是将W-H学习规则一般化，对非线性可微分函数进行权值训练的多层网络
(Back Propagation Network (Back-Propagation Network, referred to as BP networks) is to learn the rules WH generalized, non-linear differentiable function on weight training multi-layer network)