Element UI

Element ui 就是基于vue的一个ui框架,该框架基于vue开发了很多相关组件,方便我们快速开发页面。

官网: https://element.eleme.io/#/zh-CN

安装Element UI

vue init webpack element(项目名)

确认项目是否构建成功：进入到项目的根路径

执行   npm start

访问   http://localhost:8080/

在vue脚手架项目中安装elementui

# 1.下载elementui的依赖
	npm i element-ui -S

# 2.在【main.js】中指定当前项目中使用elementui
	import ElementUI from 'element-ui';
	import 'element-ui/lib/theme-chalk/index.css';

  //在vue脚手架中使用elementui
	Vue.use(ElementUI);

默认样式按钮

<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>

简洁按钮【plain】

<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>

圆角按钮【round】

<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>

图标按钮【icon】

<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>

按钮组使用

<el-button-group>
  <el-button type="primary" icon="el-icon-back">上一页</el-button>
  <el-button type="primary" icon="el-icon-right">下一页</el-button>
</el-button-group>

• 在element ui中所有组件都是 el-组件名称 方式进行命名
• 在element ui中组件的属性使用都是直接将属性名=属性值方式写在对应的组件标签上

文字链接组件

<el-link target="_blank" href="http://www.baidu.com" >默认链接</el-link>
<el-link type="primary":underline="false">默认链接</el-link>
<el-link type="success" disabled>默认链接</el-link>
<el-link type="info" icon="el-icon-platform-eleme">默认链接</el-link>
<el-link type="warning">默认链接</el-link>
<el-link type="danger">默认链接</el-link>

Layout (栅格)布局组件的使用

<el-row>
  <el-col :span="8">占用8份</el-col>
  <el-col :span="8">占用8份</el-col>
  <el-col :span="8">占用8份</el-col>
</el-row>

<el-row :gutter="50" tag="span">
  <el-col :span="4"><div style="border: 1px red solid;">占用4份</div></el-col>
  <el-col :span="8"><div style="border: 1px red solid;">占用8份</div></el-col>
  <el-col :span="3"><div style="border: 1px red solid;">占用3份</div></el-col>
  <el-col :span="9"><div style="border: 1px red solid;">占用9份</div></el-col>
</el-row>

<el-row>
  <el-col :span="12" :offset="9" :psuh="3" xs><div style="border: 1px blue solid;">我是占用12分</div></el-col>
  <el-col :span="6"><div style="border: 1px blue solid;">我是占用6分</div></el-col>
</el-row>

Container 布局容器组件

<!--创建容器-->
<el-container>
  <!--header-->
  <el-header><div><h1>我是标题</h1></div></el-header>
    
  <!--容器嵌套使用-->
  <el-container>
    <!--aside-->
    <el-aside><div><h1>我是菜单</h1></div></el-aside>
    <!--main-->
    <el-main><div><h1>我是中心内容</h1></div></el-main>
  </el-container>
    
  <el-footer><div><h1>我是页脚</h1></div></el-footer>
</el-container>

水平容器

<el-container direction="horizontal">

当子元素中没有有 【el-header】 或 【el-footer】 时容器排列为【水平】

垂直容器

<el-container direction="vertical">

Form相关组件

Radio按钮

<el-radio v-model="label" name="sex" disabled label="男">男</el-radio>
<el-radio v-model="label" name="sex" border size="small" label="女">女</el-radio>
<el-radio v-model="label" border size="mini" label="女">女</el-radio>
<el-radio v-model="label" border size="medium" label="女">女</el-radio>

radio按钮组

<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>
<script>
  export default {
    name: "Radio",
    data() {
      return {
        radio: 6
      }
    }
  }
</script>

checkbox组件

<el-checkbox v-model="checked"  disabled true-label="北京">北京</el-checkbox>
<el-checkbox checked border true-label="上海">上海</el-checkbox>
<el-checkbox v-model="checked" true-label="天津">天津</el-checkbox>

复选框组的使用

<el-checkbox-group @change="bb" :min="1" v-model="checkList">
  <el-checkbox label="复选框 A"></el-checkbox>
  <el-checkbox label="复选框 B"></el-checkbox>
  <el-checkbox label="复选框 C"></el-checkbox>
  <el-checkbox label="禁用" disabled></el-checkbox>
  <el-checkbox label="选中且禁用" disabled></el-checkbox>
</el-checkbox-group>

<script>
    export default {
        name: "Checkbox",
        data(){
            return{
                checked:true,
                checkList:[],
            }
        },
        methods:{
            bb(){
                console.log(this.checkList);
            }
        }
    }
</script>

Input组件

<el-input v-model="name" disabled type="textarea"></el-input>
<el-input v-model="price" :maxlength="10" show-word-limit :minlength="5"></el-input>
<el-input prefix-icon="el-icon-user-solid" placeholder="请输入用户名" clearable v-model="username"></el-input>
<el-input suffix-icon="el-icon-star-off" placeholder="请输入密码" show-password type="password" clearable v-model="password"></el-input>
<script>
    export default {
        name: "Input",
        data() {
            return {
                restaurants: [],
                state1: '',
                state2: '',
                name:'xiaochen',
                price:0.0,
                username:"",
                password:"",
            };
        },
    }
</script>

<el-input v-model="name" disabled type="textarea"></el-input>
<el-input v-model="price" :maxlength="10" show-word-limit :minlength="5"></el-input>
<el-input prefix-icon="el-icon-user-solid" placeholder="请输入用户名" clearable v-model="username"></el-input>
<el-input suffix-icon="el-icon-star-off" placeholder="请输入密码" show-password type="password" clearable v-model="password"></el-input>
<script>
    export default {
        name: "Input",
        data() {
            return {
                restaurants: [],
                state1: '',
                state2: '',
                name:'xiaochen',
                price:0.0,
                username:"",
                password:"",
            };
        },
    }
</script>

注意:在elementui中所有组件 都存在 【属性、事件、方法】

属性:直接写在对应的组件标签上 使用方式:属性名=属性值方式

事件: 直接使用vue绑定事件方式写在对应的组件标签上 使用方式:@事件名=vue中事件处理函数

方法: 1. 在对应组件标签上使用ref=组件别名 2.通过使用this.$refs.组件别名.方法名()进行调用

Select选择器组件

# 1.数据写死在页面上
<el-select v-model="cityName">
  <el-option value="北京">北京</el-option>
  <el-option value="天津">天津</el-option>
</el-select>
	注意:1.要求下拉列表中【必须存在option的value属性值】
    	 2.要求select中【必须使用v-model进行数据绑定】

# 2.如何动态获取数据
 <el-select>
 		<el-option v-for="option in options" :label="option.name" :value="option.id" :key="option.id">
 		</el-option>
 </el-select>

  <script>
      export default {
          name: "Select",
          data(){
              return{
                  options:[
                      {id:'1',name:"研发部"},
                      {id:'2',name:"小卖部"},
                      {id:'3',name:"小米部"},
                  ]
              }
          },
      }
  </script>
  
# 3.获取下拉列表选中数据
<!--选中哪个值，哪个值的value就会绑定给cityId-->
 <el-select v-model="cityId" multiple clearable>
        <el-option v-for="option in options" :label="option.name" :value="option.id" :key="option.id"></el-option>
</el-select>
<script>
    export default {
        name: "Select",
        data(){
            return{
                options:[
                    {id:'1',name:"研发部"},
                    {id:'2',name:"小卖部"},
                    {id:'3',name:"小米部"},
                ],
                cityId:''
            }
        },
    }
</script>

Switch 开关组件

<el-switch v-model="value"></el-switch>

<script>
  export default {
    name: "Switchs",
    data(){
      return{
        value:true
      }
    }
  }
</script>

DatePicker组件

<el-date-picker
        v-model="createDate"
        :editable="false"
        :clearable="false"
        placeholder="请输入创建时间"
        type="daterange"
        start-placeholder="生产时间"
        end-placeholder="过期时间"
        format="yyyy/MM/dd"
      >
</el-date-picker>

• Shortcuts: 用来增加日期组件的【快捷面板】
• Picker Options: 用来对日期控件做自定义配置

Upload组件

<el-upload 
           :limit="3" 
           :on-exceed="exceed" 
           :multiple="false" 
           :before-remove="beforeRemove" 
           :on-remove="remove" 
           :on-preview="show" 
           :drag="true" 
           accept=".txt,.png" 
           :show-file-list="true" 
           name="aaa" :data="info" 
           action="https://jsonplaceholder.typicode.com/posts/"
           :file-list="fileList">
    
  <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>

<script>
    export default {
        name: "Uploads",
        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'
                }],
                info: {id:"21"}
            }
        },
        methods:{
            show(file){
                console.log(file);
            },
            remove(file,fileList){
                console.log(file);
                console.log(fileList);
                //alert(fileList.length)
            },
            beforeRemove(file,fileList){
                if(fileList.length<3){
                    alert("上传文件不能少于3个")
                    return false;
                }
            },
            exceed(file,fileList){
                alert("文件超出上传的个数限制")
            }
        }
    }
</script>

Form组件

<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>
    <el-button type="primary" @click="onSubmit">立即创建</el-button>
    <el-button>取消</el-button>
  </el-form-item>
</el-form>
<script>
    export default {
        name: "Form",
        data() {
            return {
                form: {
                    name: '',
                    region: '',
                    date1: '',
                    date2: '',
                    delivery: false,
                    type: [],
                    resource: '',
                    desc: ''
                }
            }
        },
        methods: {
            onSubmit() {
                console.log('submit!');
            }
        }
    }
</script>

警告提示

<el-alert title="成功信息提示" :closable="false" type="success">
  <div slot>我是辅助信息</div>
</el-alert>
<el-alert title="成功信息提示" type="info"></el-alert>
<el-alert title="成功信息提示" type="warning"></el-alert>
<el-alert title="成功信息提示" type="error"></el-alert>

Message消息提示

# 1.创建最简单的消息
	this.$message('这是一个消息提示!!')

# 2.自定义消息内容
	this.$message({
    message: h('p', null, [
      h('span', null, '订单创建成功,您的订单编号为: '),
      h('i', { style: 'color: teal' }, '87')
    ])
  });

# 3.不同主题的消息提示
	 this.$message({
     message:'这是信息提示',
     type:"success",
   })
		//主题样式:  success  info  warning  error

# 4.属性使用
	this.$message({
    message:'这是信息提示',
    type:"success",
    showClose:true,
    center:true,
    iconClass:'el-icon-user-solid',
    duration:0
  })
# 5.方法的使用
	this.$message.closeAll();

table表格组件

<el-table :data="tableData">
  <el-table-column prop="id" label="编号"></el-table-column>
  <el-table-column prop="name" label="姓名"></el-table-column>
  <el-table-column prop="age" label="年龄"></el-table-column>
  <el-table-column prop="email" label="邮箱"></el-table-column>
</el-table>
<script>
    export default {
        name: "Tables",
        data(){
            return {
                tableData:[
                    {id:21,name:"小陈",age:23,email:"60037647@qq.com"},
                    {id:22,name:"小张",age:25,email:"60038647@qq.com"},
                ]
            }
        }
    }
</script>

 <el-table :data="tableData.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))" >
   .....
   <!--展示搜索和操作-->
   <el-table-column>
        <template slot="header" slot-scope="scope">
          <el-input
            v-model="search"
            size="mini"
            placeholder="输入关键字搜索"/>
        </template>
        <template slot-scope="scope">
          <el-button
            size="mini"
            @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button
            size="mini"
            type="danger"
            @click="handleDelete(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
</el-table>
<script>
    export default {
        name: "Tables",
        data() {
            return {
                tableData: [
                    {
                        id: 21, name: "小陈", age: 23, email: "60037647@qq.com",
                        dept: {id: 1, name: "研发部"}
                    },
                    {
                        id: 22, name: "小张", age: 25, email: "60038647@qq.com",
                        dept: {id: 1, name: "小卖部"}
                    },
                    {
                        id: 23, name: "小李", age: 25, email: "60038657@qq.com",
                        dept: {}
                    },
                    {
                        id: 24, name: "小四", age: 25, email: "60038657@qq.com",
                        dept: {}
                    },
                ],
                search: ''
            }
        },
        methods: {
            sorts(a, b) {
                return a.age - b.age;
            },
            showDept(row, column, cellValue, index) {
                if (cellValue) {
                    return cellValue
                }
                return "暂无部门";
            },
            showCss({row, rowIndex}) {
                if (rowIndex % 2 == 0) {
                    return "warning-row";
                }
                return "success-row";
            },
            selectRow(selection, row){
                console.log(selection);
                console.log(row);
            },
            clearSelect(){
                this.$refs.mytable.clearSelection();
            },
            handleEdit(index,row){
                console.log(index);
                console.log(row);
            },
            handleDelete(index,row){
                console.log(index);
                console.log(row);
            }
        }
    }
</script>