1. 安装VUE脚手架。

npm install -g vue-cli

2. 创建 webpack VUE项目。

vue init webpack element-admin

安装完成

cd element-admin
npm run dev

运行成功打开： http://localhost:8080
就创建成功了。

3. 添加element-ui

在element-admin目录下

npm i element-ui -S

4. 修改src/main.js

import Vue from 'vue'
import App from './App'
import router from './router'
//引入
import ElementUI from 'element-ui';
//引入样式库
import 'element-ui/lib/theme-chalk/index.css';

//全局添加elmentUI
Vue.use(ElementUI);
//element-ui全局配置
//Vue.use(Element, { size: 'small', zIndex: 3000 });
Vue.config.productionTip = false

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

5. 添加导航栏

• 1. 修改src/components/HelloWorld.vue

<template>
  <div class="hello">
    
    <el-radio-group v-model="isCollapse" style="margin-bottom: 20px;">
        <el-radio-button :label="false">展开</el-radio-button>
        <el-radio-button :label="true">收起</el-radio-button>
    </el-radio-group>
    <el-menu default-active="1-4-1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose" :collapse="isCollapse">
      <el-submenu index="1">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span slot="title">导航一</span>
        </template>
        <el-menu-item-group>
          <span slot="title">分组一</span>
          <el-menu-item index="1-1">选项1</el-menu-item>
          <el-menu-item index="1-2">选项2</el-menu-item>
        </el-menu-item-group>
        <el-menu-item-group title="分组2">
          <el-menu-item index="1-3">选项3</el-menu-item>
        </el-menu-item-group>
        <el-submenu index="1-4">
          <span slot="title">选项4</span>
          <el-menu-item index="1-4-1">选项1</el-menu-item>
        </el-submenu>
      </el-submenu>
      <el-menu-item index="2">
        <i class="el-icon-menu"></i>
        <span slot="title">导航二</span>
      </el-menu-item>
      <el-menu-item index="3" disabled>
        <i class="el-icon-document"></i>
        <span slot="title">导航三</span>
      </el-menu-item>
      <el-menu-item index="4">
        <i class="el-icon-setting"></i>
        <span slot="title">导航四</span>
      </el-menu-item>
    </el-menu>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data() {
      return {
        isCollapse: true
      };
    },
    methods: {
      handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      }
    }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
.hello{
background-color:transparent; 
}

</style>

• 2. 修改 app.vue

<template>
  <div id="app">
    <router-view/>
  </div>
</template>

<script>
export default {
  name: 'App'
}
</script>

<style>
</style>