查看已安裝的cuda版本
ls /usr/local |grep cuda
選擇cuda版本
在~/.bashrc 加入下面內容
export PATH="/usr/local/cuda-9.0/bin:$PATH"
export LD_LIBRARY_PATH="/usr/local/cuda-9.0/lib64:$LD_LIBRARY_PATH"
export LIBRARY_PATH="/usr/local/cuda-9.0/lib64:$LIBRARY_PATH"