list numpy tensor 转换

1 list 与 numpy

numpy2list:
b = list(a) or b  = a.tolist()

list2numpy:
n =  numpy.array(a)

2 numpy 与 tensor

numpy2tensor:
b= torch.from_numpy(a)

tensor2numpy:
b= a.numpy()

3 list 与 tensor

list2tensor:
b= torch.Tensor(a)