How to optimize multiple fully connected layers?

[bb417759235 (linbeibei)]

I know

Giving multiple parameters in optimizer

How can i give multiple parameters to the optimizer? fc1 = nn.Linear(784, 500) fc2 = nn.Linear(500, 10) optimizer = torch.optim.SGD([fc1.parameters(), fc2.parameters()], lr=0.01) # This causes an error. In this case, for simplicity, i don’t want to use a class with nn.Module.