Thanks for your answer, Richard. I think these files were downloaded correctly. I download them again and the result is the same.
In CIFAR10 tutorial, I download  dataset and run code, then pytorch will tell me it can find the dataset.
But this time, it keeps showing the error of “connection refused”.
And if I change the “download” to False, it will show:  “not found”.

image.png827×565 93.4 KB

In CIFAR10:

image.png696×337 45.8 KB

This time:

image.png747×722 120 KB

Thanks again. Now I can only let it go .