中文说明：该程序是应用BP神经网络做一个简单的数值的修改，并回归预测，里面有MAE.MRE.RMSE的求解代码，测试过是可以用的。
English Description：
The program is the application of BP neural network to do a simple numerical modification, and regression prediction, which has MAE.MRE.RMSE Solution code, tested can be used.