def forward(self, x):
    x = self.Net_head(x)
    res = self.Net_body(x)
    res += x
    x = self.Net_tail(res)
    return x
def forward(self, x):
    x = self.Net_head(x)
    res = self.Net_body(x)
    res += x
    x = self.Net_tail(res)
    return x