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参数绑定
在不同的网络之间共享权重
shared = nn.Linear(8, 8) net = nn.Sequential(nn.Linear(4, 8), nn.ReLU(), shared, nn.ReLU(), shared, nn.ReLU(), nn.Linear(8, 1)) print(net[2].weight.data[0] == net[4].weight.data[0]) # tensor([True, True, True, True, True, True, True, True]) net[2].weight.data[0, 0] = 100 print(net[2].weight.data[0] == net[4].weight.data[0]) # tensor([True, True, True, True, True, True, True, True])