TypeError: can't convert CUDA tensor to numpy. Use Tensor.cpu() to copy the tensor to host memory fi

这行报错：predict = predict.data.numpy()

TypeError: can't convert CUDA tensor to numpy. Use Tensor.cpu() to copy the tensor to host memory first.

意思是:如果想把CUDA tensor格式的数据改成numpy时，需要先将其转换成cpu float-tensor随后再转到numpy格式。 numpy不能读取CUDA tensor需要将它转化为 CPU tensor
将predict.data.numpy()改为predict.data.cpu().numpy()即可