中文说明：
RBF神经网络是一种具有单隐层的三层前馈网络，输入层、隐含层和输出层。本代码主要用来建立一个RBF神经网络用进行训练。
English Description：
RBF neural network is a three-layer feedforward network with single hidden layer, including input layer, hidden layer and output layer. This code is mainly used to establish an RBF neural network for training