# 1* 1卷积块：高宽减半，通道增加一倍nn.Conv2d(in_channels=64,out_channels=128,kernel_size=1,stride=1,padding=0) # 1* 1卷积块：高宽减半，通道增加一倍nn.Conv2d(in_channels=64,out_channels=128,kernel_size=1,stride=1,padding=0) 
# 1* 1卷积块：高宽减半，通道增加一倍nn.Conv2d(in_channels=64,out_channels=128,kernel_size=1,stride=1,padding=0)