antd-vue-table 合并相同单元格记录

var spanArr=[];
var position=0;

//列合并
const renderContent = (value, row, index) => {
  const obj = {
    children: value,
    attrs: {}
  };
  const _row = spanArr[index];
  const _col = _row> 0 ? 1 : 0;
         obj.attrs = {
                rowSpan: _row,
                colSpan: _col
    };

  return obj;
};

//计算合并
const  rowspan = (userData)=>{
         spanArr=[];
         position=0;
            userData.forEach((item,index) => {
            if(index === 0){
                spanArr.push(1);
                position = 0;
            }else{
                //需要合并的地方判断
                if(userData[index].CheckItem === userData[index-1].CheckItem ){
                    spanArr[position] += 1;
                    spanArr.push(0);
                }else{
                    spanArr.push(1);
                    position = index;
                }
            }
        });
 }

//列名
const columnsScore = [
  {
    title: '编号',
    dataIndex: 'ScoreId',
    width: 80,
  },
  {
    title: '检查项目',
    dataIndex: 'CheckItem',
    width: 100,
    customRender: renderContent
  },
 {
    title: '检查内容',
    dataIndex: 'CheckContent',
    width: 130
  },
  {
    title: '操作',
    key: 'action',
    scopedSlots: { customRender: 'action' }
  }
]
 
    //请求table数据

      this.$axios({  method: "post", url: "/QuaLity/GetQuality",}).then(res => {

      this.dataSource=res.data.Data;

      rowspan(res.data.Data);

      }).catch(() => { this.$message.error('连接服务器失败'););

最终：