1. 选择要激活的python环境,依次执行下面四条命令
pip install jupyter_contrib_nbextensions -i https://pypi.mirrors.ustc.edu.cn/simple
jupyter contrib nbextension install --user
pip install --user jupyter_nbextensions_configurator
jupyter nbextensions_configurator enable --user
2.修改Configurable nbextensions

3. 完成