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Element（Java后端入门篇）

• Element:是饿了么公司前端开发团队提供的一套基于Vue的网站组件库，用于快速构建网页
• 组件：组成网页的部件，例如超链接、按钮、图片、表格等等~

Element快速入门

• 引入Element的css、js文件和Vue.js

  <script src="vue.js"></script>
  <script src="element-ui/lib/index.js"></script>
  <link rel="stylesheet" href="element-ui/lib/theme-chalk/index.css">
  

• 创建Vue核心对象

  <script>new Vue({el:"#app"})
  </script>
  

• 官网复制Element组件代码:组件 | Element

Element布局

• Element中有两种布局方式：

  • Layout布局：通过基础的24分栏，迅速简便地创建布局（默认）

    <el-row><el-col :span="24"><div class="grid-content bg-purple-dark"></div></el-col>
    </el-row>
    <el-row><el-col :span="12"><div class="grid-content bg-purple"></div></el-col><el-col :span="12"><div class="grid-content bg-purple-light"></div></el-col>
    </el-row>
    <el-row><el-col :span="8"><div class="grid-content bg-purple"></div></el-col><el-col :span="8"><div class="grid-content bg-purple-light"></div></el-col><el-col :span="8"><div class="grid-content bg-purple"></div></el-col>
    </el-row>
    <el-row><el-col :span="6"><div class="grid-content bg-purple"></div></el-col><el-col :span="6"><div class="grid-content bg-purple-light"></div></el-col><el-col :span="6"><div class="grid-content bg-purple"></div></el-col><el-col :span="6"><div class="grid-content bg-purple-light"></div></el-col>
    </el-row>
    <el-row><el-col :span="4"><div class="grid-content bg-purple"></div></el-col><el-col :span="4"><div class="grid-content bg-purple-light"></div></el-col><el-col :span="4"><div class="grid-content bg-purple"></div></el-col><el-col :span="4"><div class="grid-content bg-purple-light"></div></el-col><el-col :span="4"><div class="grid-content bg-purple"></div></el-col><el-col :span="4"><div class="grid-content bg-purple-light"></div></el-col>
    </el-row><style>.el-row {margin-bottom: 20px;}.el-col {border-radius: 4px;}.bg-purple-dark {background: #99a9bf;}.bg-purple {background: #d3dce6;}.bg-purple-light {background: #e5e9f2;}.grid-content {border-radius: 4px;min-height: 36px;}.row-bg {padding: 10px 0;background-color: #f9fafc;}
    </style>
    

  • Container布局容器：用于布局的容器组件，方便快速搭建页面的基本结构

    <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><style>.el-header {background-color: #B3C0D1;color: #333;line-height: 60px;}.el-aside {color: #333;}
    </style><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>
    

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