vue3 el-table结合seamless-scroll实现表格数据滚动

github开源地址：https://github.com/xfy520/vue3-seamless-scroll

步骤

1. 安装

npm install vue3-seamless-scroll --save

2. vue代码

<template>
	<el-table
	:data="tableData"
	style="width: 100%"
	class="top"
	>
	  <el-table-column prop="name" label="名称" align="center" />
	  <el-table-column prop="date" label="日期" align="center" />
	  <el-table-column prop="money" label="金额" align="center" />
	</el-table>
	
	<vue3-seamless-scroll class="seamless-warp scroll" :list="tableData" :step="0.3" style="width: 100%">
	  <el-table
	    :data="tableData"
	    style="width: 100%"
	    class="bottom"
	  >
	    <el-table-column prop="name" label="名称" align="center" />
	    <el-table-column prop="date" label="日期" align="center" />
	    <el-table-column prop="money" label="金额" align="center" />
	  </el-table>
	</vue3-seamless-scroll>
</template>

<script>
  import { defineComponent, reactive, onMounted, toRefs } from 'vue'
  import { Vue3SeamlessScroll } from "vue3-seamless-scroll";
  export default defineComponent({
    components: { Vue3SeamlessScroll },
    setup() {
      const state = reactive({
        tableData: null,
      })

      onMounted(() => {
        setTimeout(() => {
          state.tableData = [
            {
              date: '2022-05-03',
              name: '名称名称',
              money: 200333,
            },
            {
              date: '2022-05-02',
              name: '名称名称',
              money: 190333,
            },
            {
              date: '2022-05-04',
              name: '名称名称',
              money: 220333,
            },
            {
              date: '2022-05-01',
              name: '名称名称',
              money: 310333,
            },
            {
              date: '2022-05-04',
              name: '名称名称',
              money: 220333,
            },
            {
              date: '2022-05-01',
              name: '名称名称',
              money: 310333,
            },
            {
              date: '2022-05-04',
              name: '名称名称',
              money: 220333,
            },
            {
              date: '2022-05-01',
              name: '名称名称',
              money: 310333,
            },
          ]
        }, 3000)
      })

      return {
        ...toRefs(state),
      }
    },
  })
</script>

<style lang="scss" scoped>
  ::v-deep .seamless-warp {
    height: 229px;
    overflow: hidden;
  }
  ::v-deep .top .el-table__body-wrapper {
    display: none;
  }
  ::v-deep .bottom .el-table__header-wrapper {
    display: none;
    width: 100%;
  }
</style>

思路：创建两个table，隐藏第一个table的body部分，这样就能得到一个固定的head。再隐藏第二个table的head部分，同时第二个table又是在滚动组件中，所以整个table都是滚动的，这时候隐藏head再搭配第一个table的head就能得到固定head并且body数据滚动的效果。