数据归一化函数，有些matlab没有此函数，在此，上传一个函数让大家共享，-Data normalization function, some matlab does not have this function, in this, the upload function to share, thank you

归一化程序，把数变为(0,1)之间的小数，经测试有效。-Normalization procedures, the number becomes (0,1) between the decimal, the test is valid.