打開cmd，執行

 jupyter notebook --generate-config

將在當前路徑下生成一個文件： jupyter_notebook_config.py

C:\Users\sheng> jupyter notebook --generate-config
Writing default config to: C:\Users\sheng\.jupyter\jupyter_notebook_config.py

打開文件，找到如下部分：

## The directory to use for notebooks and kernels.
#c.NotebookApp.notebook_dir = ‘‘

去掉註釋，修改為指定的路徑，如：

## The directory to use for notebooks and kernels.
c.NotebookApp.notebook_dir = u‘E:\\jupyternotebook‘

重新啟動jupyter即可。

jupyter 修改啟動時目錄