Vue学习之Element-Plus

对于element-plus中的组件，可以访问官网去快速找到其的书写格式element-plus官网

下面对其进行简单介绍

1.文本框el-input

基本上对于所有的修改值的el组件，都要绑定一个v-model，否则将无法修改

placeholder中的值是默认值，clearable是可以清空

<template>
  <el-input v-model="input" style="width: 240px" clearable placeholder="Please input" />
</template>

<script lang="ts" setup>
import { ref } from 'vue'
const input = ref('')
</script>

如果加上show-password这个属性就是密码框

想要前后带图标可以和icon一起使用

<div class="flex gap-4 mb-4">
    <span>Using attributes</span>
    <el-input
      v-model="input1"
      style="width: 240px"
      placeholder="Pick a date"
      :suffix-icon="Calendar"
    />
    <el-input
      v-model="input2"
      style="width: 240px"
      placeholder="Type something"
      :prefix-icon="Search"
    />
</div>

 记得在组件中使用icon需要引用icon

import { Calendar, Search } from '@element-plus/icons-vue'

设置文本域，把type改成textarea就行了

<template>
  <el-input
    v-model="textarea"
    style="width: 240px"
    :rows="2"
    type="textarea"
    placeholder="Please input"
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'
const textarea = ref('')
</script>

2.下拉框el-select

v-for遍历可以减少书写代码量

<template>
  <el-select v-model="value" placeholder="Select" style="width: 240px">
    <el-option
      v-for="item in options"
      :key="item.value"
      :label="item.label"
      :value="item.value"
      :disabled="item.disabled"
    />
  </el-select>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const value = ref('')
const options = [
  {
    value: 'Option1',
    label: 'Option1',
  },
  {
    value: 'Option2',
    label: 'Option2',
    disabled: true,
  },
  {
    value: 'Option3',
    label: 'Option3',
  },
  {
    value: 'Option4',
    label: 'Option4',
  },
  {
    value: 'Option5',
    label: 'Option5',
  },
]
</script>

可以通过disabled设置来禁用选项

clearable可以清空选项

filterable可以通过文字索引搜索选项

3.单选框

<template>
  <div class="mb-2 ml-4">
    <el-radio-group v-model="radio1">
      <el-radio value="1" size="large">Option 1</el-radio>
      <el-radio value="2" size="large">Option 2</el-radio>
    </el-radio-group>
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const radio1 = ref('1')
</script>

value就是索引值

这是按钮样式，按钮同样可以赋予动作

  <div>
    <el-radio-group v-model="radio1" size="large">
      <el-radio-button label="New York" value="New York" />
      <el-radio-button label="Washington" value="Washington" />
      <el-radio-button label="Los Angeles" value="Los Angeles" />
      <el-radio-button label="Chicago" value="Chicago" />
    </el-radio-group>
  </div>

4.复选框

<template>
  <el-checkbox-group v-model="checkList" :min="1" :max="2">
    <el-checkbox label="Option A" value="Value A" />
    <el-checkbox label="Option B" value="Value B" />
    <el-checkbox label="Option C" value="Value C" />
    <el-checkbox label="disabled" value="Value disabled" disabled />
    <el-checkbox
      label="selected and disabled"
      value="Value selected and disabled"
      disabled
    />
  </el-checkbox-group>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const checkList = ref(['Value selected and disabled', 'Value A'])
</script>

复选框组绑定的一定是一个数组，而不能是一个值

min和max可以限制选的个数

<div>
    <el-checkbox-group v-model="checkboxGroup1" size="large">
      <el-checkbox-button v-for="city in cities" :key="city" :value="city">
        {{ city }}
      </el-checkbox-button>
    </el-checkbox-group>
</div>

同样可以和按钮联动

5.图片显示

<template>
  <div style="width: 300px; height: 200px; border: 1px solid #ddd;">
    <el-image 
      src="https://via.placeholder.com/600x400" 
      fit="contain" 
      lazy
      alt="图片加载失败"
    />
  </div>
</template>

fit是图片可以自适应容器，可选值：fill / contain / cover / none / scale-down

lazy图片懒加载，当图片滚动到可视范围内才会加载

<template>
  <el-image
    src="invalid-image-url.jpg"
    fit="cover"
  >
    <!-- 自定义加载中 -->
    <template #placeholder>
      <div style="display: flex; justify-content: center; align-items: center; height: 100%; color: #409EFF;">
        图片加载中...
      </div>
    </template>
    
    <!-- 自定义加载失败 -->
    <template #error>
      <div style="display: flex; justify-content: center; align-items: center; height: 100%; color: #F56C6C;">
        加载失败
      </div>
    </template>
  </el-image>
</template>

加载失败和加载中

6.图片轮播 el-carousel

<div class="block text-center">
    <span class="demonstration">
      Switch when indicator is hovered (default)
    </span>
    <el-carousel height="150px">
      <el-carousel-item v-for="item in 4" :key="item">
        <h3 class="small justify-center" text="2xl">{{ item }}</h3>
      </el-carousel-item>
    </el-carousel>
</div>

简单了解就行，一般用于商品展示

7.表格 el-table

<template>
  <el-table :data="tableData" style="width: 100%">
    <el-table-column fixed prop="date" label="Date" width="150" />
    <el-table-column prop="name" label="Name" width="120" />
    <el-table-column prop="state" label="State" width="120" />
    <el-table-column prop="city" label="City" width="120" />
    <el-table-column prop="address" label="Address" width="600" />
    <el-table-column prop="zip" label="Zip" width="120" />
    <el-table-column fixed="right" label="Operations" min-width="120">
      <template #default>
        <el-button link type="primary" size="small" @click="handleClick">
          Detail
        </el-button>
        <el-button link type="primary" size="small">Edit</el-button>
      </template>
    </el-table-column>
  </el-table>
</template>

<script lang="ts" setup>
const handleClick = () => {
  console.log('click')
}

const tableData = [
  {
    date: '2016-05-03',
    name: 'Tom',
    state: 'California',
    city: 'Los Angeles',
    address: 'No. 189, Grove St, Los Angeles',
    zip: 'CA 90036',
    tag: 'Home',
  },
  {
    date: '2016-05-02',
    name: 'Tom',
    state: 'California',
    city: 'Los Angeles',
    address: 'No. 189, Grove St, Los Angeles',
    zip: 'CA 90036',
    tag: 'Office',
  },
  {
    date: '2016-05-04',
    name: 'Tom',
    state: 'California',
    city: 'Los Angeles',
    address: 'No. 189, Grove St, Los Angeles',
    zip: 'CA 90036',
    tag: 'Home',
  },
  {
    date: '2016-05-01',
    name: 'Tom',
    state: 'California',
    city: 'Los Angeles',
    address: 'No. 189, Grove St, Los Angeles',
    zip: 'CA 90036',
    tag: 'Office',
  },
]
</script>