【d2l】【常见函数】【12】 torch.tensor.repeat( )
Repeats this tensor along the specified dimensions.
参考：https://pytorch.org/docs/stable/generated/torch.Tensor.repeat.html
入门
进阶
Repeats this tensor along the specified dimensions.
参考：https://pytorch.org/docs/stable/generated/torch.Tensor.repeat.html