conda安装cudatoolkit和cudnn
conda install cudatoolkit=9.0 -c https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64/
conda install cudnn=7.4.1 -c https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/linux-64/
conda install cudatoolkit=9.0 -c https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64/
conda install cudnn=7.4.1 -c https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/linux-64/
