1. 安装cuda10.2版本的torch

   pip install torch==1.10.1+cu102 torchvision==0.11.2+cu102 torchaudio==0.10.1 -f https://download.pytorch.org/whl/torch_stable.html
   

2. 下载DCNv2 https://github.com/lbin/DCNv2.githttps://github.com/lbin/DCNv2.git

             cd DCNv2-pytorch_1.9

            sudo python3 setup.py install