简单的BP神经网络算法，采用正向传播和方向误差调整的方法，增加学习率使得网络收敛。-Simple BP neural network algorithm, using the forward direction of propagation and error adjustment method to increase the learning rate makes the network convergence.

bp改进，神经网络算法，对bp算法的改进，缩短收敛时间-bp