cuda10.1降级（卸载+安装）

1.卸载:

   实测有用贴：

https://blog.csdn.net/qq_34877350/article/details/81185447

https://blog.csdn.net/m0_37951243/article/details/90051494

https://blog.csdn.net/u012074597/article/details/80317275

 

2.安装9.0