torch下载地址：

https://download.pytorch.org/whl/torch/

torchvision下载地址

https://download.pytorch.org/whl/torchvision/

mmcv下载地址：

将cu和torch版本改为所需版本即可

https://download.openmmlab.com/mmcv/dist/cu101/torch1.8.0/index.html

mmcls下载地址

https://repo.huaweicloud.com/repository/pypi/simple/mmcls/