@vue/cli项目启动自动打开浏览器

方法一：打开项目的package.json文件 vue-cli-service serve --open

{
  "name": "v01",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "core-js": "^3.6.5",
    "vue": "^3.0.0"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/compiler-sfc": "^3.0.0",
    "babel-eslint": "^10.1.0",
    "eslint": "^6.7.2",
    "eslint-plugin-vue": "^7.0.0"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/vue3-essential",
      "eslint:recommended"
    ],
    "parserOptions": {
      "parser": "babel-eslint"
    },
    "rules": {}
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not dead"
  ]
}

npm install -g cnpm
cnpm install -g @vue/cli
vue --version
cnpm info vue
vue create v01 
cd v01
pnpm run serve
pnpm run build

npm run serve
npm i -g npm
npm --version
pnpm run serve

方法二：在项目根下和package.json文件同一位置处建立vue.config.js文件，内容如下

module.exports = {
    devServer: {
        open: true
	}
}

  {{ver}}
  
  



import HelloWorld from './components/HelloWorld.vue'
import {version} from 'vue'
export default {
  name: 'App',
  components: {
    HelloWorld
  },
  data(){
	return{
		ver:version
	}
  }
}



#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

测试效果如下：