1. 关于torch张量tensor
from __future__ import print_function import torch matrix = torch.randn(2,3) print(type(matrix)) print(matrix.size()) matrix1 = torch.rand(2,3) print(type(matrix1)) print(matrix1.size()) matrix2 = torch.FloatTensor([2,3]) print(matrix2) print(type(matrix2)) print(matrix2.size())输出：
<class 'torch.Tensor'> torch.Size([2, 3]) <class 'torch.Tensor'> torch.Size([2, 3]) tensor([2., 3.]) <class 'torch.Tensor'> torch.Size([2])