中文说明：例如，反向传播程序来解决简单的异或门，具有不同的输入。投入是 00、 01、 10，00，0,1,1,0 的输出目标。该算法将分类的投入，确定最接近的值到输出
English Description：
An example of backpropagation program to solve simple XOR gate with different inputs. the inputs are 00, 01, 10, and 00 and the output targets are 0,1,1,0. the algorithm will classify the inputs and determine the nearest value to the output