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Python中 list, numpy.array, torch.Tensor 格式相互转化

1.1 list 转 numpy

ndarray = np.array(list)

 

1.2 numpy 转 list

list = ndarray.tolist()

 

2.1 list 转 torch.Tensor

tensor=torch.Tensor(list)

 

2.2 torch.Tensor 转 list

先转numpy,后转list

list = tensor.numpy().tolist()

 

3.1 torch.Tensor 转 numpy

ndarray = tensor.numpy()

*gpu上的tensor不能直接转为numpy

ndarray = tensor.cpu().numpy()

 

3.2 numpy 转 torch.Tensor

tensor = torch.from_numpy(ndarray) 

 

posted @ 2019-04-29 19:45  SiyuanChen  阅读(53035)  评论(0编辑  收藏  举报