vue通过数据过滤实现表格合并

<table id="search_table" class="table table-bordered table-striped" cellspacing="0" width="100%">
 <thead>
 <tr class="table_bg">
 <th class="" colspan="12">征期日历信息</th>
 </tr>
 <tr class="cell_bg">
 <th class="" style="">月份</th>
 <th class="" style="" >征期</th>
 <th class="" style="" >缴款期</th>
 <th class="" style="" >税种</th>
 </tr>
 </thead>
 <tbody id="tbody">

 <tr class="" v-for="(i,index) in result">
 <td :rowspan="i.ydspan" :class="{hidden: i.yddis}" class="text-center">
 {{i.yd}}
 </td>
 <td :rowspan="i.zqspan" :class="{hidden: i.zqdis}">
 {{i.zq}}
 </td>
 <td <%--:rowspan="i.jkqspan" :class="{hidden: i.jkqdis}"--%>>
 {{i.jkq}}
 </td>
 <td>
 {{i.sz}}
 </td>
 </tr>
 </tbody>
</table>

combineZQ:function (list) {
 var k = 0;
 let field ="zq";
 while (k < list.length) {
 list[k][field + 'span'] = 1;
 list[k][field + 'dis'] = false;
 for (var i = k + 1; i <= list.length - 1; i++) {
 if (list[k][field] == list[i][field] && list[k][field] != ''&&list[k]['yd']==list[i]['yd']&&list[k]['yd']!='') {
 list[k][field + 'span']++;
 list[k][field + 'dis'] = false;
 list[i][field + 'span'] = 1;
 list[i][field + 'dis'] = true;
  } else {
  break;
 }
 }
 k = i;
 }
 return list;
},

combineYd:function (list) {
 var k = 0;
 let field ="yd";
 while (k < list.length) {
 list[k][field + 'span'] = 1;
 list[k][field + 'dis'] = false;
 for (var i = k + 1; i <= list.length - 1; i++) {
 if (list[k][field] == list[i][field] && list[k][field] != '') {
  list[k][field + 'span']++;
  list[k][field + 'dis'] = false;
  list[i][field + 'span'] = 1;
  list[i][field + 'dis'] = true;
  } else {
 break;
 }
 }
 k = i;
 }
 return list;
},