摘要： F.cross_entropy(x,y) 1 x = np.array([[1, 2,3,4,5], 2 [1, 2,3,4,5], 3 [1, 2,3,4,5]]).astype(np.float32) 4 y = np.array([1, 1, 0]) 5 x = torch.from_nump 阅读全文