Error point:
data, target = data.to(self.device), target.to(self.device)
AttributeError: 'list' object has no attribute 'to'
The test shows: print("6666666666666666666 ", target)
Solution: Take out the list elements (that is, convert the list type to tensor type, change [tensor[....], ...]the data to tensor[....], ...) before the error point and enter: target=torch.stack(target, dim=1)
target=torch.stack(target, dim=1)
data, target = data.to(self.device), target.to(self.device)
The result shows: passed