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Qu...
pytorch: grad can be implicitly created only for scalar outputs:
1z.backward(torch.ones_like(x))
原因:backward必须使用标量来进行
python本身看起来数据类型不敏感,但是pytorch极其敏感,int与double不能直接相加,出现相关错误后应查看数据类型:
12print(t...