[实现]CNN Implementation in PyTorch

class CNN(nn.Module):
    def __init__(self):
        super().__init__()
        self.conv1 = nn.Conv2d(
            in_channels=1, out_channels=64, kernel_size=3, stride=1, padding=1
        )
        self.relu1 = nn.ReLU()
        self.conv2 = nn.Conv2d(
            in_channels=64, out_channels=3, kernel_size=3, stride=1, padding=1
        )
        self.relu2 = nn.ReLU()
        self.mlp = nn.Sequential(
            nn.Flatten(),
            nn.Linear(3 * 28 * 28, 512),
            nn.ReLU(),
            nn.Linear(512, 10),
        )

    def forward(self, x):
        x = self.relu1(self.conv1(x))
        x = self.relu2(self.conv2(x))
        return self.mlp(x)