# 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)