1.
conda install -c conda-forge jupyter_contrib_nbextensions
2.
jupyter contrib nbextension install --user
3.
jupyter nbextension enable
第三步打开插件可以在浏览器上面点击：
参考：https://github.com/ipython-contrib/jupyter_contrib_nbextensionshttps://github.com/ipython-contrib/jupyter_contrib_nbextensions
