在使用PyTorch搭建一个简单的卷积神经网络(CNN)进行图像分类时,以下代码片段缺少关键层定义。请选择正确的代码补全空白处,实现一个包含卷积层、池 化层和全连接层的网络结构。( )import torch
import torch.nn as nn
class SimpleCNN(nn.Module):
def init (self):
super(SimpleCNN, self)._init_ ()
self.conv1 =nn.Conv2d(3, 16, kernel_size=3, padding=1) self.pool = nn.MaxPool2d(2, 2)
# 补全此处代码
self.fc1 = nn.Linear( , 128) self.fc2 = nn.Linear(128, 10)
def forward(self, x):
x = self.pool(torch.relu(self.conv1(x))) x = x.view(-1, )
x = torch.relu(self.fc1(x)) x = self.fc2(x)
return x