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目录tensor::Tensorinit tensortensor attribute基本操作tensor::Tensorinit tensortorch::Tensor b = torch::zeros({2,3}); // 2x3的全0张量torch::Tensor b = torch::ones({2,3}); // 2x3的全1张量torch::Tensor b = torch::eye(5); // 5x5的张量，对角线为1，其余.