1, first find index.js build the project file in the config file using scaffolding vue
2, modify dev inside the host property values: change the host: '0.0.0.0'
3, and finally in the local area network, using its own ip connection, and do not forget to restart the project
4. Find the version of vue-cli will host the host name is defined as localhost, resulting in local IP can not access the service.