需求场景：表格列数很多的情况下，不想拖拽滚动条查看明细，所以点击按钮直接跳转到对应的位置

代码实现：

<template>
  <div>
      <div class = "mytable">
      
        <el-table
          id = "testTable"
          ref = "table"
          :data="tableData"
          style="width: 700px">
          <el-table-column
            prop="date"
            label="日期"
            fixed
            width="300">
          </el-table-column>
          <el-table-column
            prop="name"
            label="姓名"
            width="300">
          </el-table-column>
          <el-table-column
            prop="address"
            label="地址">
          </el-table-column>
        </el-table>

        <button id = "slide" @click = "clickSlide">slide</button>
    </div>
  </div>
  
  
</template>
<script>
 export default ({
  data(){
    return {
      dom:"",
      tableData: [{
        date: '2016-05-02',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-04',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1517 弄'
      }, {
        date: '2016-05-01',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1519 弄'
      }, {
        date: '2016-05-03',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1516 弄'
      }],
      
    }
  },
  mounted(){
  },
  methods:{
    clickSlide(){
      let table  = document.querySelector(".mytable .el-table__body-wrapper");
      console.log(table);
      table.scrollLeft = 300
    },
    
  }
 })
</script>
<style>
.mytable{
  width:500px;
  height:600px;
  overflow-x: scroll;
  border: 1px solid #ccc;
}
</style>

关键代码：