本文参考基于vue和elementui的课程表_vue实现类似课程表的周会议列表-CSDN博客，原程序在vue3.5.13版本下不能运行，修改两处：

1）slot-cope改为v-slot

2）return 'background-color:rgb(24 144 255 / 80%);color: #fff; border-radius:10px' 改为：

     return {'background-color':'rgb(24 144 255 / 80%)', 'color': '#fff', 'border-radius':'20px'}

改进几处：

1）简化表格生成算法makeTable；

2）改进数据填表算法mergeData；

3）改进单元格合并算法objectSpanMethod，由原来的100多行，简化为13行

4）增加中午两节课

源程序如下：

<template>
  <div>
    <div class="panel">
        <el-table :data="timetable" :span-method="objectSpanMethod" border=true
                :header-cell-style="{background:'#d9e5fd', color:'black'}"
                :cell-style="tableCellStyle"
        >
        <el-table-column prop="sjd" label="📅" width="60" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.sjd.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="jc" label="节次" width="60" align="center">
        </el-table-column>
        <el-table-column prop="mon" label="星期一" width="95" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.mon.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="tue" label="星期二" width="95" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.tue.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="wed" label="星期三" width="95" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.wed.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="thu" label="星期四" width="95" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.thu.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="fri" label="星期五" width="95" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.fri.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="sat" label="星期六" width="70" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.sat.course"></div>
          </template>
        </el-table-column>
        <el-table-column prop="sun" label="星期日" width="70" align="center">
          <template v-slot="scope">
            <div v-html="scope.row.sun.course"></div>
          </template>
        </el-table-column>
      </el-table>
    </div>
  </div>
</template>
<script>
import { colProps } from 'element-plus';
export default {
  props: {length: {type: [String, Number],default: 14}}, // 总节次
  data () {
    return {
    // 课程表数据
    timetable: [],
    events: [
      {xq: 0,course: '上午',start: 1,last:4},
      {xq: 0,course: '中午',start: 5,last:2},
      {xq: 0,course: '下午',start: 7,last:5},
      {xq: 0,course: '晚上',start: 12,last:3},
      {
      xq: 5,start: 1,last:2,
      course: '👨‍🏫<br>·软件工程<br>·3-4节<br>·计师23级<br>·8教406室<br>·1-16周'
      },
      {
      xq: 1, start: 7,last:2,
      course: '🔬<br>·软工实验<br>·11-12节<br>·计师23级<br>·25教704室<br>·3-14周'
      },
      {
      xq: 5,start: 7,last:3,
      course: '👨‍👩‍👦‍👦<br>·集中学习<br>·7-8节<br>·计师23级<br>·25教1-1室<br>·每月第1周'
      }
    ],
    weeks: ['sjd','mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun'],
  }
  },
  mounted () {
    this.mergeData()
  },
  created () {
    this.makeTimetable()
  },
  methods: {
    // 单元格添加背景色
    tableCellStyle (row) {
      if (row.row[row.column.property].course !== undefined) {
        return {'background-color':'rgb(24 144 255 / 80%)', 'color': '#fff', 'border-radius':'20px'}
      }
    },
    // 构造课程表完整数据
    makeTimetable () {
      this.timetable = []
      for (let i = 0; i < this.length; i++) {
        let oneRow = {sjd: {},jc: i + 1,mon: {},tue: {},wed: {},thu: {},fri: {},sat: {}, sun: {}}
        this.timetable.push(oneRow)
      }
    },
    mergeData () {
      // 合并数据
        for (let i = 0; i < this.events.length; i++) {
          // 获取星期几
          let week = this.weeks[this.events[i].xq ]
          console.log(this.events[i].last);
          for(var j=0;j< this.events[i].last ;j++)
            this.timetable[this.events[i].start - 1+j][week] = this.events[i]
        }
        console.log(this.timetable);
    },
    objectSpanMethod ({ row, column, rowIndex, columnIndex }) {
      var obj={rowspan: 1,colspan: 1};
      if( row[column.property].course!== undefined){
          if(rowIndex===row[column.property].start-1){
            obj = {
                rowspan: row[column.property].last,
                colspan: 1
            }
          }
          else
            obj = {rowspan: 0,colspan: 0};
      }
      return obj;
    },  
  }
}
</script>

调用：

<timetable  :length="14" > </timetable>