打开文件：C:\ProgramData\Anaconda3\Lib\site-packages\notebook\static\custom\custom.css
输入以下代码：
.CodeMirror pre {font-family: Consolas; font-size: 13pt;} * {font-family: Consolas;} div.output_area pre {font-family: Consolas; font-size: 13pt;} div.input_prompt {font-family: Consolas; font-size: 13pt;} div.out_prompt_overlay {font-family: Consolas; font-size: 13pt;} div.prompt {font-family: Consolas; font-size: 13pt;} span.cm-comment {font-family: Consolas !important; font-style:normal !important; color:#BB3D00 !important;}