jupyter 报错failed to execute ‘dot‘, make sure the Graphviz executables are on your systems
1.首先要pipinstallgraphviz2.点击此处下载安装包官网https://graphviz.org/3.电脑添加环境变量3.1此电脑右键》》属性》》高级系统设置》》环境变量》》xxx的用户变量u》》path》》新建粘贴文件的安装路径+\bin:例如D:\python\graphviz\bin3.2此电脑右键》》属性》》高级系统设置》》环境变量》》系统环境变量(s)》》path》》新建