为什么内容损失是0呢？而且风格损失没有变化？？

[smilethensee]

C:\Users\3057.conda\envs\pytorch11\python.exe C:/Users/lucifer/pytorch11/chp8_aut.py
Epoch:50 Style Loss: 881.223694 Content Loss:0.000000
Epoch:100 Style Loss: 881.223694 Content Loss:0.000000
Epoch:150 Style Loss: 881.223694 Content Loss:0.000000
Epoch:200 Style Loss: 881.223694 Content Loss:0.000000
Epoch:250 Style Loss: 881.223694 Content Loss:0.000000
Epoch:300 Style Loss: 881.223694 Content Loss:0.000000

Process finished with exit code 0