问题： 网上搜到的都是直接在cmd里输入

但我安装完后重启了Jupyter Notebook依然没有显示扩展插件选项

原因： 可能因为我的jupyter不是通过pip安装的，而是通过安装Anaconda3自带的 （具体原因还不太明白）

解决： 打开Anaconda Prompt (Anaconda3) 在命令行依次输入上面的两个语句 等待安装完毕重启Jupyter就可以啦 如果出现所有插件禁止选择的情况，把√取消就可以了

Autopep8 - 格式化/美化代码 Use kernel-specific code to reformat/prettify the contents of code cells

⭐Code prettify - 格式化/美化代码 Use kernel-specific code to reformat/prettify the contents of code cells

Codefolding - 折叠代码 This extension enables the CodeMirror feature to allow codefolding in code cells

Collapsible Headings - 笔记本按标题折叠 Allows notebook to have collapsible sections, separated by headings

contrib_nbextensions_help_item The contrib_nbextensions_help_item is a tiny extension that just adds an item in the notebook’s help menu, pointing to the jupyter_contrib_nbextensions at readthedocs.

⭐ExecuteTime - 显示执行时间 Display when each cell has been executed and how long it took

Hide Header - 热键切换可见性 Toggle visibility of all of header, menubar, toolbar using a hotkey

⭐Highlight selected word - 高亮所选词 Enables the CodeMirror addon “Match Highlighter”

highlighter - 高亮markdown中文本 Enable to highlight select text in a markdown cell

⭐Hinterland - 自动补全代码 Enable code autocompletion menu for every keypress in a code cell, instead of only enabling it with tab

Nbextensions dashboard tab An nbextension that renders the nbextensions configurator interface as a dashboard tab.

Nbextensions edit menu item - 编辑菜单项 Add an edit-menu item to open the nbextensions configurator page

⭐Notify - 后台运行完通知 Show a browser notification when kernel becomes idle again after being busy for some time - configurable after 0, 5, 10, or 30 seconds busy.

⭐Table of Contents (2) - 目录 The toc2 extension enables to collect all running headers and display them in a floating window, as a sidebar or with a navigation menu. The extension is also draggable, resizable, collapsable, dockable and features automatic numerotation with unique links ids, and an optional toc cell.

Variable Inspector - 检查变量 The Variable Inspector extension collects all defined variables and display them in a floating window. The extension is also draggable, resizable, collapsable.

当选择一个插件下面都有对应的介绍，也可以根据自己的需求添加