功能需求如上图所示，试了好多方法没能解决掉，想请各位指导一下
下面是html代码<div class="bigBox">
<div class="box">
<div class="sbox">
<select name="op0-0" id="">
<option value="=">等于</option>
<option value="!=">不等于</option>
</select>
<select name="tag0-0" id="select">
<volist name="arr" id="vo">
<volist name="vo" id="vo">
<option value="{$vo.TagId},{$vo.TagKey}">{$vo.TagName}___{$vo.TagDataDefine}</option>
</volist>
</volist>
</select>
<select name="inperate0-0" id="" style='visibility :hidden'>
<option value=""></option>
</select>
<a href="##" class="add">+</a>
<a href="##" class="del">-</a>
</div>
<a href="##" class="addall">+</a>
<a href="##" class="delall">-</a>
</div>
</div>
js代码：<script>
//右边加号追加
$(function(){
$(document).on('click','.add',function(){
let colIndex = $(this).parent().find('select[name^="op"]').length
let rowIndex = $(this).parent().parent().index()
var value=`<select name="inperate`+rowIndex+`-`+colIndex+`" id="inOperate">
<option value="AND">和</option>
<option value="OR">或</option>
</select>
<select name="op`+rowIndex+`-`+colIndex+`" id="op">
<option value="=">等于</option>
<option value="!=">不等于</option>
</select>
<select name="tag`+rowIndex+`-`+colIndex+`" id="tag">
<volist name="arr" id="vo">
<volist name="vo" id="vo">
<option value="{$vo.TagId},{$vo.TagKey}">{$vo.TagName}___{$vo.TagDataDefine}</option>
</volist>
</volist>
</select>
<a href="##" class="add">+</a>
<a href="##" class="del">-</a>`;
$(this).parent().append(value);
})
});
//右边减号删除
$(function(){
$(document).on('click','.del',function(){
})
});
//下面减号删除
$(function(){
$(document).on('click','.delall',function(){
})
});
//下面加号追加
$(function(){
let a = 0;
let b = 0;
$(document).on('click','.addall',function(){
let b = $('.bigBox').children().length;
var v=`<div class="box">
<div>
<select name="Operate`+b+`-`+a+`" id="">
<option value="AND">和</option>
<option value="OR">或</option>
</select>
<select name="op`+b+`-`+a+`" id="">
<option value="=">等于</option>
<option value="!=">不等于</option>
</select>
<select name="tag`+b+`-`+a+`" id="select">
<volist name="arr" id="vo">
<volist name="vo" id="vo">
<option value="{$vo.TagId},{$vo.TagKey}">{$vo.TagName}___{$vo.TagDataDefine}</option>
</volist>
</volist>
</select>
</select>
<select name="inperate`+b+`-`+a+`" id="" style="visibility :hidden">
<option value=""></option>
</select>
<a href="##" class="add">+</a>
<a href="##" class="del">-</a>
</div>
<a href="##" class="addall">+</a>
<a href="##" class="delall">-</a>
</div>`;
$(this).parent().parent().append(v);
})
})
</script>
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