非常简单，只要加一个配置！
第1步，复制这个代码（端口可改）
"config": { "nuxt": { "host": "0.0.0.0", "port": "8090" } },
第2步，找到根目录下的package.json，把代码粘贴进去。
这是全部的代码，我这里配置在了8~13行。
{ "name": "guanWangPhone", "version": "1.0.0", "description": "My bee's knees Nuxt.js project", "author": "kason", "private": true, "config": { "nuxt": { "host": "0.0.0.0", "port": "8090" } }, "scripts": { "dev": "cross-env NODE_ENV=development nodemon server/index.js --watch server", "build": "nuxt build", "start": "cross-env NODE_ENV=production node server/index.js", "generate": "nuxt generate" }, "dependencies": { "cross-env": "^5.2.0", "element-ui": "^2.4.11", "koa": "^2.6.2", "nuxt": "^2.0.0", "postcss-px2rem": "^0.3.0" }, "devDependencies": { "node-sass": "^4.13.0", "nodemon": "^1.18.9", "sass-loader": "^8.0.0", "scss-loader": "0.0.1" } }