我采用的是Ubuntu18.04，
所以在这里选择合适的版本：
https://developer.nvidia.com/
选择完成后给出了命令
下载安装
wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-ubuntu1804.pin
sudo mv cuda-ubuntu1804.pin /etc/apt/preferences.d/cuda-repository-pin-600
wget https://developer.download.nvidia.com/compute/cuda/11.2.0/local_installers/cuda-repo-ubuntu1804-11-2-local_11.2.0-460.27.04-1_amd64.deb
sudo dpkg -i cuda-repo-ubuntu1804-11-2-local_11.2.0-460.27.04-1_amd64.deb
sudo apt-key add /var/cuda-repo-ubuntu1804-11-2-local/7fa2af80.pub
sudo apt-get update
sudo apt-get -y install cuda
