摘要： two_layer_net.ipynb 之前对 x.reshape(x.shape[0], -1)语句的输出结果理解一直有误： 1 x = [[1,4,7,2],[2,5,7,4]] 2 x = np.array(x) 3 x0 = x.reshape(x.shape[0], -1) 4 x1 = 阅读全文