Will relu layer introduce parameters?

This is the net code and the result of test:

class Net(nn.Module):
    def __init__(self):
        super(Net, self).__init__()  # 初始化基类
        self.conv1 = nn.Conv2d(1, 6, (5, 5))
        self.conv2 = nn.Conv2d(6, 16, (5, 5))

        self.fc1 = nn.Linear(16 * 5 * 5, 120)
        self.fc2 = nn.Linear(120, 84)
        self.fc3 = nn.Linear(84, 10)

    def forward(self, x):
        # Max pooling over a (2, 2) window
        x = self.conv1(x)
        x = f.relu(x)
        x = f.max_pool2d(x, (2, 2))

        # If the size is a square you can only specify a single number
        x = self.conv2(x)
        x = f.relu(x)
        x = f.max_pool2d(x, (2, 2))

        x = x.view(-1, self.num_flat_features(x))
        x = f.relu(self.fc1(x))
        x = f.relu(self.fc2(x))
        x = self.fc3(x)
        return x

    def num_flat_features(self, x):
        size = x.size()[1:]  # all dimensions except the batch dimension
        num_features = 1
        for s in size:
            num_features *= s
        return num_features

net = Net()

params = list(net.parameters())
for param in range(10):
    print(params[param].size())  # print parameters

I want to know the structure of the parameters
however the results show that each relu will introduce a parameter tensor , why?

No, the nn.ReLU() module and the functional API call via F.relu won’t use any parameters.
The 10 parameters you are seeing are coming from the weight and bias of the other 5 layers (conv and linear).
You might get more information by using e.g. model.named_parameters(), which will also return the parameter name.

Thanks, I forgot the bias, I was too stupid!