第一步:
cmd键入:
pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user
pip install jupyter_nbextensions_configurator
jupyter nbextensions_configurator enable --user
第二步:
启动jupyter notebook,并打开网页:
http://localhost:8888/nbextensions?nbextension=toc2/main
![](https://img.haomeiwen.com/i2949921/e8cb5a7da61f71a1.png)
重启jupyter notebook
运行一个Cell后会看到运行时间:
![](https://img.haomeiwen.com/i2949921/94e815b1750e1845.png)
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