中文说明：人工智能神经网络源程序代码产生指定类别的样本点，并在图中绘出 限制类中心的范围 指定类别数目 每一类的标准差 设置神经元数目为5得到网络权值，并在图上绘出 得到训练后的网络权值，并在图上绘出 随机生成1000个二维向量，作为样本，并绘出其分布 建立网络，得到初始权值 分别对不同的步长，训练网络，绘出相应的权值分布图对于训练好的网络，选择特定的输入向量，得到网络的输出结果
English Description：
The source code of artificial intelligence neural network generates the sample points of the specified class, and draws the range of the center of the restricted class in the graph, specifies the number of classes, sets the standard deviation of each class to 5, gets the network weight, and draws the network weight after training on the graph, and draws 1000 two-dimensional vectors randomly generated on the graph as samples, and draws its distribution Establish the network, get the initial weights, respectively, for different step size, train the network, draw the corresponding weight distribution map, for the trained network, select a specific input vector, get the output of the network