argument ‘input‘ (position 1) must be Tensor, not XX

这里：numpy 和 tensor数据相互转换的方法：

1.numpy->tensor

data = torch.tensor(data)

2.tensor->numpy

非训练数据（训练结束后的tensor）的转换：

data1 = np.array(data1)

如果是训练过程中需要转换，则：

data_ = data.cpu().data.numpy()

https://blog.csdn.net/qq_41368074/article/details/105560274

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