一、安装

介绍：由饿了么团队出品，一套为开发者、设计师和产品经理准备的组件库，提供了配套axure、sektch设计资源，可以直接下载使用，能帮我等搬砖人员节省大量的时间。
使用现成的UI组件库，能快速搭建项目，后期也容易维护，在敏捷开发项目中尤为常见。设计师可以下载设计文件，在做设计图时直接使用模板，既能快速出图，也保证了前端还原实现。

推荐使用npm安装： npm i element-ui -S
项目的组成：
1.src-components下的组件

2.路由router下的 index.js文件

3.以及App.vue文件

4.主文件main.js

二、element组件学习

main.js文件：

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.use(ElementUI);
Vue.config.productionTip = false

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

App.vue文件：

<template>
  <div id="app">
    <a href = '#/button'>点我显示</a>
    <a href ="#/buttondatil">点击了解详细</a>
    <a href ='#/link'>文字链接</a>
    <a href ='#/layout'>组件</a>
    <a href ='#/container'>布局</a>
    <a href = "#/radio">单选框</a>
    <a href ="#/checkbox">多选框</a>
    <a href ="#/input">输入框</a>
    <a href ="#/select">选择器</a>
    <a href = "#/switch">开关</a>
    <br>
    <a href ="#/datepicker">日期选择器</a>
    <a href="#/upload">上传</a>
    <a href="#/form">表单</a>
    <a href ="#/alert">警告</a>
    <a href="#/message">消息提示</a>
    <a href="#/table">表格</a>
    <router-view/>
  </div>
</template>

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

<style>
#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;
}
</style>

index.js

import Vue from 'vue'
import Router from 'vue-router'
import Button from "../components/Button";
import Buttondatil from "../components/Buttondatil";
import link from "../components/link";
import Layout from "../components/Layout";
import Container from "../components/Container";
import Radio from "../components/Radio";
import Checkbox from "../components/Checkbox";
import Input from "../components/Input";
import Select from "../components/Select";
import Switch from "../components/Switch";
import DatePicker from "../components/DatePicker";
import Upload from "../components/Upload";
import Form from "../components/Form";
import Alert from "../components/Alert";
import Message from "../components/Message";
import Table from "../components/Table";
Vue.use(Router)

export default new Router({
  routes: [
    {path: '/button', component:Button},
    {path: '/buttondatil', component:Buttondatil},
    {path: '/link', component:link},
    {path:'/layout',component:Layout},
    {path:'/container',component:Container},
    {path:"/radio",component: Radio},
    {path:"/checkbox",component: Checkbox},
    {path: "/input",component: Input},
    {path: "/select",component: Select},
    {path: "/switch",component:Switch},
    {path: "/datepicker",component:DatePicker},
    {path: "/upload",component: Upload},
    {path: "/form",component: Form},
    {path: "/alert",component: Alert},
    {path: "/message",component: Message},
    {path:"/table",component: Table}
  ]
})

三个文件构成了项目的完整性和可实现性：

下面组件的实现都需要写入上面App.vue，main.js，index.js文件中，才可以实现

1.按钮组件

例子：


代码实现：
例子1

<template>
  <div>
  <el-row>
    <el-button>默认按钮</el-button>
    <el-button type="primary">主要按钮</el-button>
    <el-button type="success">成功按钮</el-button>
    <el-button type="info">信息按钮</el-button>
    <el-button type="warning">警告按钮</el-button>
    <el-button type="danger">危险按钮</el-button>
  </el-row>
<br>
  <el-row>
    <el-button plain>朴素按钮</el-button>
    <el-button type="primary" plain>主要按钮</el-button>
    <el-button type="success" plain>成功按钮</el-button>
    <el-button type="info" plain>信息按钮</el-button>
    <el-button type="warning" plain>警告按钮</el-button>
    <el-button type="danger" plain>危险按钮</el-button>
  </el-row>
<br>
  <el-row>
    <el-button round>圆角按钮</el-button>
    <el-button type="primary" round>主要按钮</el-button>
    <el-button type="success" round>成功按钮</el-button>
    <el-button type="info" round>信息按钮</el-button>
    <el-button type="warning" round>警告按钮</el-button>
    <el-button type="danger" round>危险按钮</el-button>
  </el-row>
<br>
  <el-row>
    <el-button icon="el-icon-search" circle></el-button>
    <el-button type="primary" icon="el-icon-edit" circle></el-button>
    <el-button type="success" icon="el-icon-check" circle></el-button>
    <el-button type="info" icon="el-icon-message" circle></el-button>
    <el-button type="warning" icon="el-icon-star-off" circle></el-button>
    <el-button type="danger" icon="el-icon-delete" circle></el-button>
  </el-row>
    <br>
  </div>
</template>
<script>
    export default {
        name: "button.vue"
    }
</script>
<style scoped>
</style>

例子2

<template>
  <div>
    <h1>简单的按钮</h1>
    <el-button type="primary" :loading="true">加载中</el-button>
  </div>
</template>
<script>
    export default {
        name: "Buttondatil"
    }
</script>
<style scoped>
</style>

2.文字链接组件

代码：

<template>
    <div>
      <br><br>
      <el-link tyoe="primary">奥利乌斯</el-link>
      <el-link type="success" href="http://www.baidu.com">百度</el-link>
      <el-link type="info">信息链接</el-link>
      <el-link type="warning">梅西</el-link>
      <el-link type="danger" :underline="aa">内马尔</el-link>
      <h1>文字链接</h1>
    </div>
</template>
<script>
    export default {
        name: "link",
      data(){
          return{
            aa:false
          }
       }
    }
</script>
<style scoped>
</style>

3.Layout组件

代码：

<template>
  <div>
    //行属性
    <el-row>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
    </el-row>
    <el-row>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
      <el-col :span="6"><div style="border:1px red solid">占用六分</div></el-col>
    </el-row>
    <h1>layout组件中使用偏移</h1>
    <el-row>
      <el-col :span="12" offset="6"><div style ="border:1px blue solid;"></div>我是占用12分</el-col>
    </el-row>
  </div>
</template>
<script>
    export default {
        name: "Layout"
    }
</script>
<style scoped>
</style>

4.container容器组件

代码：

<template>
  <el-container style="height: 500px; border: 1px solid #eee">
    <el-aside width="200px" style="background-color: rgb(238, 241, 246)">
      <el-menu :default-openeds="['1', '3']">
        <el-submenu index="1">
          <template slot="title"><i class="el-icon-message"></i>导航一</template>
          <el-menu-item-group>
            <template slot="title">分组一</template>
            <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">
            <template slot="title">选项4</template>
            <el-menu-item index="1-4-1">选项4-1</el-menu-item>
          </el-submenu>
        </el-submenu>
        <el-submenu index="2">
          <template slot="title"><i class="el-icon-menu"></i>导航二</template>
          <el-menu-item-group>
            <template slot="title">分组一</template>
            <el-menu-item index="2-1">选项1</el-menu-item>
            <el-menu-item index="2-2">选项2</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="分组2">
            <el-menu-item index="2-3">选项3</el-menu-item>
          </el-menu-item-group>
          <el-submenu index="2-4">
            <template slot="title">选项4</template>
            <el-menu-item index="2-4-1">选项4-1</el-menu-item>
          </el-submenu>
        </el-submenu>
        <el-submenu index="3">
          <template slot="title"><i class="el-icon-setting"></i>导航三</template>
          <el-menu-item-group>
            <template slot="title">分组一</template>
            <el-menu-item index="3-1">选项1</el-menu-item>
            <el-menu-item index="3-2">选项2</el-menu-item>
          </el-menu-item-group>
          <el-menu-item-group title="分组2">
            <el-menu-item index="3-3">选项3</el-menu-item>
          </el-menu-item-group>
          <el-submenu index="3-4">
            <template slot="title">选项4</template>
            <el-menu-item index="3-4-1">选项4-1</el-menu-item>
          </el-submenu>
        </el-submenu>
      </el-menu>
    </el-aside>
    <el-container>
      <el-header style="text-align: right; font-size: 12px">
        <el-dropdown>
          <i class="el-icon-setting" style="margin-right: 15px"></i>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item>查看</el-dropdown-item>
            <el-dropdown-item>新增</el-dropdown-item>
            <el-dropdown-item>删除</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
        <span>王小虎</span>
      </el-header>
      <el-main>
        <el-table :data="tableData">
          <el-table-column prop="date" label="日期" width="140">
          </el-table-column>
          <el-table-column prop="name" label="姓名" width="120">
          </el-table-column>
          <el-table-column prop="address" label="地址">
          </el-table-column>
        </el-table>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
  export default {
    data() {
      const item = {
        date: '2016-05-02',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      };
      return {
        tableData: Array(20).fill(item)
      }
    }
  };
</script>

5.radio单选按钮组件

代码：

<template>
  <div>
    <h1>radio组件使用</h1>
    <el-radio  v-model="label"  @change="aa" name="sex" border size="small" label="男">男</el-radio>
    <el-radio  v-model="label"  @change="aa" name="sex" border size="small" label="女">女</el-radio>
 <br>
    <el-radio-group v-model="radio">
      <el-radio :label="3">备选项3</el-radio>
      <el-radio :label="6">备选项6</el-radio>
      <el-radio :label="9">备选项9</el-radio>
    </el-radio-group>
  </div>
</template>
<script>
    export default {
        name: "radio",
      data(){
          return{
            label:'男',
            radio:3
          }
      },
      methods:{
          aa(){
            console.log(this.label);
          }
      }
    }
</script>
<style scoped>
</style>

6.checkbox组件

代码：

<template>
  <div>
    <el-checkbox v-model="checked"  disabled true-label="北京">北京</el-checkbox>
    <el-checkbox @change="aa" v-model="checked"  true-label="上海">上海</el-checkbox>
    <el-checkbox v-model="checked" @change="aa" true-label="天津">天津</el-checkbox>

    <h1>复选框组</h1>
    <el-checkbox-group @change="bb" :min="1" v-model="checkList">
      <el-checkbox label="复选框 A">A</el-checkbox>
      <el-checkbox label="复选框 B">B</el-checkbox>
      <el-checkbox label="复选框 C">C</el-checkbox>
      <el-checkbox label="禁用" >禁用</el-checkbox>
      <el-checkbox label="选中且禁用" >选中且禁用</el-checkbox>
    </el-checkbox-group>
  </div>
</template>
<script>
    export default {
        name: "Checkbox",
      data(){
        return{
          checked:true,
          checkList:[],
        }
      },
  methods:{
      aa(){
          console.log(this.checked)
        },
        bb(){
          console.log(this.checkList)
        }
      }
    }
</script>
<style scoped>
</style>

7.input输入组件

代码：

<template>
  <div>
    <h3>基础用法</h3>
  <el-input v-model="input" placeholder="请输入内容"></el-input>
<br>
    <h3>禁用状态</h3>
  <el-input
    placeholder="请输入内容"
    v-model="input1"
    :disabled="true">
  </el-input>
    <br>
    <h3>可清空</h3>
    <el-input
      placeholder="请输入内容"
      v-model="input2"
      clearable>
    </el-input>
<br>
    <h3>密码框</h3>
    <el-input placeholder="请输入密码" v-model="input3">show-password></el-input>
<br>
    <h3>带icon的输入框</h3>
    <div class="demo-input-suffix">
      属性方式：
      <el-input
        placeholder="请选择日期"
        suffix-icon="el-icon-date"
        v-model="input1">
      </el-input>
      <el-input
        placeholder="请输入内容"
        prefix-icon="el-icon-search"
        v-model="input2">
      </el-input>
    </div>
    <div class="demo-input-suffix">
      slot 方式：
      <el-input
        placeholder="请选择日期"
        v-model="input3">
        <i slot="suffix" class="el-input__icon el-icon-date"></i>
      </el-input>
      <el-input
        placeholder="请输入内容"
        v-model="input4">
        <i slot="prefix" class="el-input__icon el-icon-search"></i>
      </el-input>
    </div>
    <br>
    <h3>带输入的建议</h3>
    <el-row class="demo-autocomplete">
      <el-col :span="12">
        <div class="sub-title">激活即列出输入建议</div>
        <el-autocomplete
          class="inline-input"
          v-model="state1"
          :fetch-suggestions="querySearch"
          placeholder="请输入内容"
          @select="handleSelect"
        ></el-autocomplete>
      </el-col>
      <el-col :span="12">
        <div class="sub-title">输入后匹配输入建议</div>
        <el-autocomplete
          class="inline-input"
          v-model="state2"
          :fetch-suggestions="querySearch"
          placeholder="请输入内容"
          :trigger-on-focus="false"
          @select="handleSelect"
        ></el-autocomplete>
      </el-col>
    </el-row>
  </div>
</template>
<script>
    export default {
        name: "Input",
      data(){
          return{
            input:'',
            input1:'',
            input2:'',
            input3:'',
            input4:'',
            input5:'',
            input6:'',
            input7:'',
            restaurants: [],
            state1: '',
            state2: ''
          };
      },
      methods: {
        querySearch(queryString, cb) {
          var restaurants = this.restaurants;
          var results = queryString ? restaurants.filter(this.createFilter(queryString)) : restaurants;
          // 调用 callback 返回建议列表的数据
          cb(results);
        },
        createFilter(queryString) {
          return (restaurant) => {
            return (restaurant.value.toLowerCase().indexOf(queryString.toLowerCase()) === 0);
          };
        },
        loadAll() {
          return [
            { "value": "三全鲜食（北新泾店）", "address": "长宁区新渔路144号" },
            { "value": "Hot honey 首尔炸鸡（仙霞路）", "address": "上海市长宁区淞虹路661号" },
            { "value": "新旺角茶餐厅", "address": "上海市普陀区真北路988号创邑金沙谷6号楼113" },
            { "value": "泷千家(天山西路店)", "address": "天山西路438号" },
            { "value": "胖仙女纸杯蛋糕（上海凌空店）", "address": "上海市长宁区金钟路968号1幢18号楼一层商铺18-101" },
            { "value": "贡茶", "address": "上海市长宁区金钟路633号" },
            { "value": "豪大大香鸡排超级奶爸", "address": "上海市嘉定区曹安公路曹安路1685号" },
            { "value": "茶芝兰（奶茶，手抓饼）", "address": "上海市普陀区同普路1435号" },
            { "value": "十二泷町", "address": "上海市北翟路1444弄81号B幢-107" },
            { "value": "星移浓缩咖啡", "address": "上海市嘉定区新郁路817号" },
            { "value": "阿姨奶茶/豪大大", "address": "嘉定区曹安路1611号" },
            { "value": "新麦甜四季甜品炸鸡", "address": "嘉定区曹安公路2383弄55号" },
            { "value": "Monica摩托主题咖啡店", "address": "嘉定区江桥镇曹安公路2409号1F，2383弄62号1F" },
            { "value": "浮生若茶（凌空soho店）", "address": "上海长宁区金钟路968号9号楼地下一层" },
            { "value": "NONO JUICE  鲜榨果汁", "address": "上海市长宁区天山西路119号" },
            { "value": "CoCo都可(北新泾店）", "address": "上海市长宁区仙霞西路" },
            { "value": "快乐柠檬（神州智慧店）", "address": "上海市长宁区天山西路567号1层R117号店铺" },
            { "value": "Merci Paul cafe", "address": "上海市普陀区光复西路丹巴路28弄6号楼819" },
            { "value": "猫山王（西郊百联店）", "address": "上海市长宁区仙霞西路88号第一层G05-F01-1-306" },
            { "value": "枪会山", "address": "上海市普陀区棕榈路" },
            { "value": "纵食", "address": "元丰天山花园(东门) 双流路267号" },
            { "value": "钱记", "address": "上海市长宁区天山西路" },
            { "value": "壹杯加", "address": "上海市长宁区通协路" },
            { "value": "唦哇嘀咖", "address": "上海市长宁区新泾镇金钟路999号2幢（B幢）第01层第1-02A单元" },
            { "value": "爱茜茜里(西郊百联)", "address": "长宁区仙霞西路88号1305室" },
            { "value": "爱茜茜里(近铁广场)", "address": "上海市普陀区真北路818号近铁城市广场北区地下二楼N-B2-O2-C商铺" },
            { "value": "鲜果榨汁（金沙江路和美广店）", "address": "普陀区金沙江路2239号金沙和美广场B1-10-6" },
            { "value": "开心丽果（缤谷店）", "address": "上海市长宁区威宁路天山路341号" },
            { "value": "超级鸡车（丰庄路店）", "address": "上海市嘉定区丰庄路240号" },
            { "value": "妙生活果园（北新泾店）", "address": "长宁区新渔路144号" },
            { "value": "香宜度麻辣香锅", "address": "长宁区淞虹路148号" },
            { "value": "凡仔汉堡（老真北路店）", "address": "上海市普陀区老真北路160号" },
            { "value": "港式小铺", "address": "上海市长宁区金钟路968号15楼15-105室" },
            { "value": "蜀香源麻辣香锅（剑河路店）", "address": "剑河路443-1" },
            { "value": "北京饺子馆", "address": "长宁区北新泾街道天山西路490-1号" },
            { "value": "饭典*新简餐（凌空SOHO店）", "address": "上海市长宁区金钟路968号9号楼地下一层9-83室" },
            { "value": "焦耳·川式快餐（金钟路店）", "address": "上海市金钟路633号地下一层甲部" },
            { "value": "动力鸡车", "address": "长宁区仙霞西路299弄3号101B" },
            { "value": "浏阳蒸菜", "address": "天山西路430号" },
            { "value": "四海游龙（天山西路店）", "address": "上海市长宁区天山西路" },
            { "value": "樱花食堂（凌空店）", "address": "上海市长宁区金钟路968号15楼15-105室" },
            { "value": "壹分米客家传统调制米粉(天山店)", "address": "天山西路428号" },
            { "value": "福荣祥烧腊（平溪路店）", "address": "上海市长宁区协和路福泉路255弄57-73号" },
            { "value": "速记黄焖鸡米饭", "address": "上海市长宁区北新泾街道金钟路180号1层01号摊位" },
            { "value": "红辣椒麻辣烫", "address": "上海市长宁区天山西路492号" },
            { "value": "(小杨生煎)西郊百联餐厅", "address": "长宁区仙霞西路88号百联2楼" },
            { "value": "阳阳麻辣烫", "address": "天山西路389号" },
            { "value": "南拳妈妈龙虾盖浇饭", "address": "普陀区金沙江路1699号鑫乐惠美食广场A13" }
          ];
        },
        handleSelect(item) {
          console.log(item);
        }
      },
      mounted() {
        this.restaurants = this.loadAll();
      }
    }
</script>
<style scoped>
</style>

8.select组件

代码：

<template>
  <div>
    <br>
  <el-select v-model="value" clearable placeholder="请选择">
    <el-option
      v-for="item in options"
      :key="item.value"
      :label="item.label"
      :value="item.value">
    </el-option>
  </el-select>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value: ''
      }
    }
  }
</script>
<style scoped>
</style>

9.switch组件

代码：

<template>
  <div>
    <br>
    <el-switch
      v-model="value"
      active-color="#13ce66"
      inactive-color="#ff4949">
    </el-switch>
    <br>
    <el-switch
      v-model="value1"
      active-text="按月付费"
      inactive-text="按年付费">
    </el-switch>
    <br>
    <el-switch
      style="display: block"
      v-model="value2"
      active-color="#13ce66"
      inactive-color="#ff4949"
      active-text="按月付费"
      inactive-text="按年付费">
    </el-switch>
  </div>
</template>
<script>
    export default {
        name: "Switch",
        data(){
          return{
            value:true,
            value1: true,
            value2: true
          }
        }
    };
</script>
<style scoped>
</style>

10.DatePicker组件

代码：

<template>
  <div>
    <br>
  <div class="block">
    <span class="demonstration">默认</span>
    <el-date-picker
      v-model="value1"
      type="date"
      placeholder="选择日期">
    </el-date-picker>
  </div>
    <br>
  <div class="block">
    <span class="demonstration">带快捷选项</span>
    <el-date-picker
      v-model="value2"
      align="right"
      type="date"
      placeholder="选择日期"
      :picker-options="pickerOptions">
    </el-date-picker>
  </div>
    <br>
    <div class="container">
      <div class="block">
        <span class="demonstration">周</span>
        <el-date-picker
          v-model="value3"
          type="week"
          format="yyyy 第 WW 周"
          placeholder="选择周">
        </el-date-picker>
      </div>
      <div class="block">
        <span class="demonstration">月</span>
        <el-date-picker
          v-model="value4"
          type="month"
          placeholder="选择月">
        </el-date-picker>
      </div>
    </div>
    <div class="container">
      <div class="block">
        <span class="demonstration">年</span>
        <el-date-picker
          v-model="value5"
          type="year"
          placeholder="选择年">
        </el-date-picker>
      </div>
      <div class="block">
        <span class="demonstration">多个日期</span>
        <el-date-picker
          type="dates"
          v-model="value6"
          placeholder="选择一个或多个日期">
        </el-date-picker>
      </div>
    </div>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        pickerOptions: {
          disabledDate(time) {
            return time.getTime() > Date.now();
          },
          shortcuts: [{
            text: '今天',
            onClick(picker) {
              picker.$emit('pick', new Date());
            }
          }, {
            text: '昨天',
            onClick(picker) {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24);
              picker.$emit('pick', date);
            }
          }, {
            text: '一周前',
            onClick(picker) {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24 * 7);
              picker.$emit('pick', date);
            }
          }]
        },
        value1: '',
        value2: '',
        value3: '',
        value4: '',
        value5: '',
        value6: '',
      };
    }
  };
</script>
<style scoped>
</style>

11.Upload组件

代码：

<template>
  <div>
    <br>
    <h3>点击上传</h3>
    <el-upload
      class="upload-demo"
      action="https://jsonplaceholder.typicode.com/posts/"
      :on-preview="handlePreview"
      :on-remove="handleRemove"
      :before-remove="beforeRemove"
      multiple
      :limit="3"
      :on-exceed="handleExceed"
      :file-list="fileList">
      <el-button size="small" type="primary">点击上传</el-button>
      <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
    </el-upload>
    <br>
    <h3>用户头像上传</h3>
    <el-upload
      class="avatar-uploader"
      action="https://jsonplaceholder.typicode.com/posts/"
      :show-file-list="false"
      :on-success="handleAvatarSuccess"
      :before-upload="beforeAvatarUpload">
      <img v-if="imageUrl" :src="imageUrl" class="avatar">
      <i v-else class="el-icon-plus avatar-uploader-icon"></i>
    </el-upload>
  <br>
  <h3>拖拽上传</h3>
  <el-upload
    class="upload-demo"
    drag
    action="https://jsonplaceholder.typicode.com/posts/"
    multiple>
    <i class="el-icon-upload"></i>
    <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
    <div class="el-upload__tip" slot="tip">只能上传jpg/png文件，且不超过500kb</div>
  </el-upload>
  </div>
</template>
<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>
<script>
  export default {
    data() {
      return {
        fileList: [{name: 'food.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}, {name: 'food2.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}]
      };
    },
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
      },
      handleExceed(files, fileList) {
        this.$message.warning(`当前限制选择 3 个文件，本次选择了 ${files.length} 个文件，共选择了 ${files.length + fileList.length} 个文件`);
      },
      beforeRemove(file, fileList) {
        return this.$confirm(`确定移除 ${ file.name }？`);
      }
    }
  }
</script>
<style scoped>
</style>

12.Form组件

代码：

<template>
  <div>
    <br>
    <h3>典型表单</h3>
    <el-form ref="form" :model="form" label-width="80px">
      <el-form-item label="活动名称">
        <el-input v-model="form.name"></el-input>
      </el-form-item>
      <el-form-item label="活动区域">
        <el-select v-model="form.region" placeholder="请选择活动区域">
          <el-option label="区域一" value="shanghai"></el-option>
          <el-option label="区域二" value="beijing"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="活动时间">
        <el-col :span="11">
          <el-date-picker type="date" placeholder="选择日期" v-model="form.date1" style="width: 100%;"></el-date-picker>
        </el-col>
        <el-col class="line" :span="2">-</el-col>
        <el-col :span="11">
          <el-time-picker placeholder="选择时间" v-model="form.date2" style="width: 100%;"></el-time-picker>
        </el-col>
      </el-form-item>
      <el-form-item label="即时配送">
        <el-switch v-model="form.delivery"></el-switch>
      </el-form-item>
      <el-form-item label="活动性质">
        <el-checkbox-group v-model="form.type">
          <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
          <el-checkbox label="地推活动" name="type"></el-checkbox>
          <el-checkbox label="线下主题活动" name="type"></el-checkbox>
          <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
        </el-checkbox-group>
      </el-form-item>
      <el-form-item label="特殊资源">
        <el-radio-group v-model="form.resource">
          <el-radio label="线上品牌商赞助"></el-radio>
          <el-radio label="线下场地免费"></el-radio>
        </el-radio-group>
      </el-form-item>
      <el-form-item label="活动形式">
        <el-input type="textarea" v-model="form.desc"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="onSubmit">立即创建</el-button>
        <el-button>取消</el-button>
      </el-form-item>
    </el-form>
    <br>
    <h3>行内表单</h3>
    <el-form :inline="true" :model="formInline" class="demo-form-inline">
      <el-form-item label="审批人">
        <el-input v-model="formInline.user" placeholder="审批人"></el-input>
      </el-form-item>
      <el-form-item label="活动区域">
        <el-select v-model="formInline.region" placeholder="活动区域">
          <el-option label="区域一" value="shanghai"></el-option>
          <el-option label="区域二" value="beijing"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="onSubmit">查询</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        formInline: {
          user: '',
          region: ''
        },
        form: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        }
      }
    },
    methods: {
      onSubmit() {
        console.log('submit!');
      }
    }
  }
</script>
<style scoped>
</style>

13.alert组件

代码：

<template>
  <div>
    <br>
    <h3>主题</h3>
    <el-alert
      title="成功提示的文案"
      type="success"
      effect="dark">
    </el-alert>
    <el-alert
      title="消息提示的文案"
      type="info"
      effect="dark">
    </el-alert>
    <el-alert
      title="警告提示的文案"
      type="warning"
      effect="dark">
    </el-alert>
    <el-alert
      title="错误提示的文案"
      type="error"
      effect="dark">
    </el-alert>
    <br>
    <h3>带有icon和辅助性文字介绍</h3>
    <el-alert
      title="成功提示的文案"
      type="success"
      description="文字说明文字说明文字说明文字说明文字说明文字说明"
      show-icon>
    </el-alert>
    <el-alert
      title="消息提示的文案"
      type="info"
      description="文字说明文字说明文字说明文字说明文字说明文字说明"
      show-icon>
    </el-alert>
    <el-alert
      title="警告提示的文案"
      type="warning"
      description="文字说明文字说明文字说明文字说明文字说明文字说明"
      show-icon>
    </el-alert>
    <el-alert
      title="错误提示的文案"
      type="error"
      description="文字说明文字说明文字说明文字说明文字说明文字说明"
      show-icon>
    </el-alert>
  </div>
</template>

<script>
    export default {
        name: "Alert"
    }
</script>
<style scoped>
</style>

14.message消息组件

代码：

<template>
  <div>
    <br>
    <h3>不同状态-用来显示成功警告消息错误类的操作反馈</h3>
    <el-button :plain="true" @click="open2">成功</el-button>
    <el-button :plain="true" @click="open3">警告</el-button>
    <el-button :plain="true" @click="open1">消息</el-button>
    <el-button :plain="true" @click="open4">错误</el-button>
  </div>
</template>
<script>
  export default {
    methods: {
      open1() {
        this.$message('这是一条消息提示');
      },
      open2() {
        this.$message({
          message: '恭喜你，这是一条成功消息',
          type: 'success'
        });
      },
      open3() {
        this.$message({
          message: '警告哦，这是一条警告消息',
          type: 'warning'
        });
      },
      open4() {
        this.$message.error('错了哦，这是一条错误消息');
      }
    }
  }
</script>

15.table组件

代码：

<template>
  <div>
    <br>
    <h3>多选</h3>
    <el-table
      ref="multipleTable"
      :data="tableData"
      tooltip-effect="dark"
      style="width: 100%"
      @selection-change="handleSelectionChange">
      <el-table-column
        type="selection"
        width="55">
      </el-table-column>
      <el-table-column
        label="日期"
        width="120">
        <template slot-scope="scope">{{ scope.row.date }}</template>
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名"
        width="120">
      </el-table-column>
      <el-table-column
        prop="address"
        label="地址"
        show-overflow-tooltip>
      </el-table-column>
    </el-table>
    <div style="margin-top: 20px">
      <el-button @click="toggleSelection([tableData[1], tableData[2]])">切换第二、第三行的选中状态</el-button>
      <el-button @click="toggleSelection()">取消选择</el-button>
    </div>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        tableData: [{
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-08',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-06',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-07',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        multipleSelection: []
      }
    },
    methods: {
      toggleSelection(rows) {
        if (rows) {
          rows.forEach(row => {
            this.$refs.multipleTable.toggleRowSelection(row);
          });
        } else {
          this.$refs.multipleTable.clearSelection();
        }
      },
      handleSelectionChange(val) {
        this.multipleSelection = val;
      }
    }
  }
</script>

类似的组件还有很多，感兴趣的小伙伴可以进入官网了解更多。
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