sudo  /usr/local/cuda-11.5/bin/cuda-uninstaller 

官方地址：CUDA Toolkit 11.6 Update 2 Downloads | NVIDIA Developerhttps://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64

wget https://developer.download.nvidia.com/compute/cuda/11.6.2/local_installers/cuda_11.6.2_510.47.03_linux.runsudo sh cuda_11.6.2_510.47.03_linux.run