轉：https://www.jianshu.com/p/e51ba4cb11d6

先上效果

三要素

1、row-click 點選行

2、ref 自行了解vue

3、toggleRowExpansion

toggleRowExpansion() // 引數1是單擊行的row，引數2是true 或者false

程式碼

<template>
  <el-table
    :data="tableData5"
  @row-click
 
="clickTable"
   ref="refTable"
    style="width: 100%">
    <el-table-column type="expand">
      <template slot-scope="props">
        <el-form label-position="left" inline class="demo-table-expand">
          <el-form-item label="商品名稱">
            <span>{{ props.row.name }}</
 
span>
          </el-form-item>
          <el-form-item label="所屬店鋪">
            <span>{{ props.row.shop }}</span>
          </el-form-item>
          <el-form-item label="商品 ID">
            <span>{{ props.row.id }}</span>
          </el-form-item
 
>
          <el-form-item label="店鋪 ID">
            <span>{{ props.row.shopId }}</span>
          </el-form-item>
          <el-form-item label="商品分類">
            <span>{{ props.row.category }}</span>
          </el-form-item>
          <el-form-item label="店鋪地址">
            <span>{{ props.row.address }}</span>
          </el-form-item>
          <el-form-item label="商品描述">
            <span>{{ props.row.desc }}</span>
          </el-form-item>
        </el-form>
      </template>
    </el-table-column>
    <el-table-column
      label="商品 ID"
      prop="id">
    </el-table-column>
    <el-table-column
      label="商品名稱"
      prop="name">
    </el-table-column>
    <el-table-column
      label="描述"
      prop="desc">
    </el-table-column>
  </el-table>
</template>

<style>
  .demo-table-expand {
    font-size: 0;
  }
  .demo-table-expand label {
    width: 90px;
    color: #99a9bf;
  }
  .demo-table-expand .el-form-item {
    margin-right: 0;
    margin-bottom: 0;
    width: 50%;
  }
</style>

<script>
  export default {
    data() {
      return {
        tableData5: [{
          id: '12987122',
          name: '好滋好味雞蛋仔',
          category: '江浙小吃、小吃零食',
          desc: '荷蘭優質淡奶，奶香濃而不膩',
          address: '上海市普陀區真北路',
          shop: '王小虎夫妻店',
          shopId: '10333'
        }, {
          id: '12987123',
          name: '好滋好味雞蛋仔',
          category: '江浙小吃、小吃零食',
          desc: '荷蘭優質淡奶，奶香濃而不膩',
          address: '上海市普陀區真北路',
          shop: '王小虎夫妻店',
          shopId: '10333'
        }, {
          id: '12987125',
          name: '好滋好味雞蛋仔',
          category: '江浙小吃、小吃零食',
          desc: '荷蘭優質淡奶，奶香濃而不膩',
          address: '上海市普陀區真北路',
          shop: '王小虎夫妻店',
          shopId: '10333'
        }, {
          id: '12987126',
          name: '好滋好味雞蛋仔',
          category: '江浙小吃、小吃零食',
          desc: '荷蘭優質淡奶，奶香濃而不膩',
          address: '上海市普陀區真北路',
          shop: '王小虎夫妻店',
          shopId: '10333'
        }]
      }
    },
     methods: {
         clickTable(row,index,e){
           this.$refs.refTable.toggleRowExpansion(row)
      }
  }
</script>