vue表格，左侧一列固定不变，右侧所有列滑动，上下正常滚动

借鉴：https://blog.csdn.net/qq_41499782/article/details/122363330

大佬是vue3版本的，我借鉴大佬修改成vue2版本

<template>
  <div class="content-table">
    <template v-if="tableData.length > 0">
      <div class="left-div">
        <div class="left-div1">
          <table>
            <tr>
              <th>{{ header }}</th>
            </tr>
          </table>
        </div>
        <div
          ref="firstColLayer"
          class="left-div2"
          :style="{ height: `calc(100vh - ${tableScrollHeight}px` }"
        >
          <table class="left-table2">
            <tr v-for="(col, index) in firstCol" :key="index">
              <td>{{ col }}</td>
            </tr>
          </table>
        </div>
      </div>
      <div class="right-div">
        <div ref="firstRowLayer" class="right-div1">
          <table class="right-table1" :style="{ width: (firstRow.length - 1) * 100 + 'px' }">
            <tr>
              <th class="first-row-style" v-for="(row, index) in firstRow" :key="index">{{ row }}</th>
            </tr>
          </table>
        </div>
        <div
          ref="tableContainer"
          class="right-div2"
          :style="{ height: `calc(100vh - ${tableScrollHeight}px` }"
          @scroll="tableScroll()"
        >
          <table class="right-table2" :style="{ width: (firstRow.length - 1) * 100 + 'px' }">
            <tr v-for="(body,index) in tableBodyRows" :key="index">
              <td v-for="(col, i) in tableBodyCols" :key="col.props + i">{{ body[col.props] }}</td>
            </tr>
          </table>
        </div>
      </div>
    </template>
    <template v-else>
      <div class="empty-content">
        <table
          cellspacing="0"
          :style="{ width: (headerData.length - 1) * 100 + 'px', height: '200px', overflow: 'auto' }"
        >
          <thead class="table-header">
            <tr>
              <th v-for="(item) in headerData" :key="item.title">{{ item.title }}</th>
            </tr>
          </thead>
          
          <!-- <van-empty class="empty-res" description="空空如也！" /> -->
        </table>
      </div>
    </template>
  </div>
</template>
<script>

export default {
    props:{
        headerData:{
            type:Array,
            default:()=>[]
        },
        tableData:{
            type:Array,
            default:()=>[]
        },
        tableScrollHeight:{
            type:Number,
            default:0
        }
    },
    computed:{
        firstCol(){
            return  this.tableData.map(p => {
                const pArr = Object.keys(p);
                return p[pArr[0]]
            })
        },
        header(){
            return this.headerData[0].title
        },
        firstRow(){
            const rows = [];
            this.headerData.forEach((f, i) => {
                if (i !== 0) {
                rows.push(f.title)
                }
            })
            return rows;
        },
        tableBodyRows(){
            let arr= [];
            this.tableData.forEach((f, index) => {
                // 接下来排除第一列
                let res = {};
                for (const key in f) {
                if (Object.prototype.hasOwnProperty.call(f, key)) {
                    if (key !== this.headerData[0].title) {
                    res[key] = f[key]
                    }
                }
                }
                arr.push(res)
            })
            return arr 
        },
        tableBodyCols(){
            let arr = []
            this.headerData.forEach((f, i) => {
                if (i !== 0) {
                arr.push(f)
                }
            })
            console.log(arr)
            return arr;
        }
    },
    methods:{
        tableScroll(){
             // 首行固定
            this.$refs.firstRowLayer.scrollLeft = this.$refs.tableContainer.scrollLeft;
            // 首列固定
            this.$refs.firstColLayer.scrollTop = this.$refs.tableContainer.scrollTop;
        }
    }
}
</script>
<style lang="less" scoped>
.content-table {
  box-sizing: border-box;
  overflow-x: hidden;
}
table {
  border-collapse: collapse;
  margin: 0 auto;
  width: 100%;
  border-spacing: 0;
  font-size: 13px;
}
th {
  word-break: break-all;
  word-wrap: break-word;
  height: 40px;
  width: 100px;
  vertical-align: middle;
  text-align: center;
  border-left: 1px solid #999;
  background: #d9d9d9;
  box-sizing: border-box;
}
td {
  word-break: break-all;
  word-wrap: break-word;
  width: 100px;
  text-align: center;
  vertical-align: middle;
  line-height: 30px;
  border-left: 1px solid #999;
  box-sizing: border-box;
}
tr {
  border-top: 1px solid #999;
  box-sizing: border-box;
}
.left-div {
  width: 100px;
  float: left;
}
.left-div1 {
  width: 100%;
}
.left-div2 {
  width: 100%;
  overflow: hidden;
}
.left-table2 {
  margin-bottom: 4px;
}
.right-div {
  float: left;
  width: calc(100vw - 100px);
  margin-left: -1px;
}
.right-div1 {
  width: 100%;
  overflow: hidden;

  .first-row-style {
    box-sizing: border-box;
  }
}
.right-div2 {
  width: 100%;
  overflow: auto;
}

.right-table2 {
  overflow: hidden;
}
table tr:nth-child(odd) {
  background: rgba(255, 255, 255, 0.3);
}
table tr:nth-child(even) {
  background: rgba(153, 153, 153, 0.3);
}
.empty-content {
  width: 100%;
  overflow: auto;
}
</style>