需要进行分类识别时，对特征参数需要进行归一化，此代码是对你的数据进行归一化到0与1之间的，输入为你的目标数组和你的数组大小-When the need for classification and recognition of characteristic parameters required normalized, this code is for your data normalized to between 0 and 1, and input your target array and the size of your array