最开始使用jupyter notebook的时候改了一下c.NotebookApp.notebook_dir,大概意思就是指浏览器中默
specification retrieval. (JUPYTER_GATEWAY_URL env var)
To see all available configurables, use `--help-all`
Examples
--------
jupyter notebook # start the notebook
jupyter notebook --certfile=mycert.pem # use SSL/TLS certificate
jupyter notebook password # enter a password to protect the server
[C 22:12:21.419 NotebookApp] Bad config encountered during initialization:
[C 22:12:21.420 NotebookApp] No such notebook dir: ''E:\\gitgraduatework''
(notebook) C:\Users\ytcomputer>j
认的开始文件夹的位置吧。后来我把那个文件夹删了就导致打不开了