1. 实现效果

2. 安装 sortablejs 插件

sortablejs 更多用法

cnpm i --save sortablejs

3. 完整组件代码

<template>
  <div class="home">
    <div class="body">
      <el-table :data="tableData" border row-key="date" class="draggable-table" style="width: 100%">
        <el-table-column prop="sortNo" label="序号">
          <template slot-scope="{ row }">
            <img
              class="handle"
              :src="require('./icon-drop.png')"
              style="width: 20px; height: 20px; object-fit: contain"
            />
          </template>
        </el-table-column>
        <el-table-column prop="date" label="日期"></el-table-column>
        <el-table-column prop="name" label="姓名"></el-table-column>
        <el-table-column prop="address" label="地址"></el-table-column>
      </el-table>
    </div>
  </div>
</template>

<script>
  import Sortable from 'sortablejs'
  export default {
    name: 'Demo',
    data() {
      return {
        tableData: [
          // 略去数据，与前段代码一直
          { date: '2024-01-02', name: '张三1', address: '深圳市' },
          { date: '2024-01-03', name: '李四2', address: '成都市' },
          { date: '2024-01-04', name: '王五3', address: '重庆市' },
          { date: '2024-01-05', name: '麻六4', address: '上海市' },
          { date: '2024-01-07', name: 'kk5', address: '上海市01' },
          { date: '2024-01-08', name: 'fantay6', address: '上海市02' },
        ],
      }
    },
    mounted() {
      const tbody = document.querySelector('.draggable-table .el-table__body-wrapper tbody')
      new Sortable(tbody, {
        handle: '.handle', // handle's class
        animation: 150,
        // 需要在odEnd方法中处理原始eltable数据，使原始数据与显示数据保持顺序一致
        onEnd: ({ newIndex, oldIndex }) => {
          const targetRow = this.tableData[oldIndex]
          this.tableData.splice(oldIndex, 1)
          this.tableData.splice(newIndex, 0, targetRow)
          console.table(this.tableData)
        },
      })
    },
  }
</script>

<style scoped lang="scss">
  .home {
    .body {
      width: 890px;
      height: 500px;
      border: #ff3366 solid 10px;
      box-sizing: border-box;
      padding: 20px;
      box-sizing: border-box;
    }
  }
  .handle {
    cursor: move;
    display: flex;
    align-content: center;
  }
</style>

4. 注意点

1. 很多文章使用 Sortable.create 但是我这样用没生效，使用 new Sortable 就行了
2. 页面table添加类 draggable-table
3. handle 可以配置可拖拽的指定元素，默认是当前行触发