打开vue项目（dev）

dev/config/ 路径修改index.js文件

 

然后对host和pord修改指定的即可

host: 'localhost', // can be overwritten by process.env.HOSTport: 8082, // can be overwritten by process.env.PORT, if port is in use, a free one will be determinedautoOpenBrowser: false,errorOverlay: true,notifyOnErrors: true,poll: false, // https://webpack.js.org/configuration/dev-server/#devserver-watchoptions-