目录
代码
<https://blog.csdn.net/qq_37385726/article/details/81700817#%E4%BB%A3%E7%A0%81>
输出
<https://blog.csdn.net/qq_37385726/article/details/81700817#%E8%BE%93%E5%87%BA>
numpy中的ndarray转化成pytorch中的tensor : torch.from_numpy()
pytorch中的tensor转化成numpy中的ndarray : numpy()
代码
import numpy as np import torch np_arr = np.array([1,2,3,4])
tor_arr=torch.from_numpy(np_arr) tor2numpy=tor_arr.numpy()
print('\nnumpy\n',np_arr,'\ntorch\n',tor_arr,'\nnumpy\n',tor2numpy)
输出
numpy
[1 2 3 4]
torch
tensor([1, 2, 3, 4], dtype=torch.int32)
numpy
[1 2 3 4]
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