m0_52987303的博客

绘制三维图流程：import numpy as npimport matplotlib.pyplot as pltfrom mpl_toolkits.mplot3d import Axes3D#必要的库x_data = [1.0, 2.0, 3.0]y_data = [2.0, 4.0, 6.0]#这个是一个线性模型y=2x，后面计算损失函数def forward(x): return x * w + b#返回预测值def loss(x, y): y_pred =