pytorch tensor 转 variable

import torch
from torch.autograd import Variable
t = torch.zeros([2,2])
v = Variable(t)
print(t)
print("-----")
print(v)

print结果：

0  0
 0  0
[torch.FloatTensor of size 2x2]

-----
Variable containing:
 0  0
 0  0
[torch.FloatTensor of size 2x2]