问题
I stupidly (?) pip-installed tensorflow-gpu, and now import tensorflow as tf fails with an error (it can't find some shared libraries). Is there a way to reset the environment to "factory settings"?
回答1:
To drop your current backend and start fresh with a new one, select the command 'Reset all runtimes...' from the Runtime menu.
来源：https://stackoverflow.com/questions/49961289/resetting-colaboratory-to-factory-settings