1.html
<div class="custom-fold-table">
<table cellpadding="0" cellspacing="0" width="100%" class="ellipsis-thead custom-table last-column-center table-border">
<thead>
<tr>
<th width="12%">编号</th>
<th width="18%" class="tal">名称</th>
<th width="12%" class="tal">总造价（元）</th>
<th width="12%" class="tal">占工程费用比例</th>
<th width="12%" class="tal">单方造价(元/m2)</th>
<th width="9%">指标标杆</th>
</tr>
</thead>
</table>
<div class="tree-table">
<div class="tr-level-1">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>001</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%"><p class="red">154561</p></td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-2">
<div class="tr-level-2">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click font-bold"><div class="arrow-icon"></div>0011</td>
<td width="18%" class="font-bold">土建工程</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%"><span class="red">154561</span></td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-3">
<div class="tr-level-3">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>00111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-4">
<div class="tr-level-4">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-5">
<div class="tr-level-5">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%">001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
<div class="tr-level-3">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>00111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-4">
<div class="tr-level-4">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-5">
<div class="tr-level-5">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%">001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="tr-level-2">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click font-bold"><div class="arrow-icon"></div>0011</td>
<td width="18%" class="font-bold">土建工程</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%"><span class="red">154561</span></td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-3">
<div class="tr-level-3">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>00111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-4">
<div class="tr-level-4">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-5">
<div class="tr-level-5">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%">001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
<div class="tr-level-3">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>00111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-4">
<div class="tr-level-4">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%" class="fold-click"><div class="arrow-icon"></div>001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
<div class="level-5">
<div class="tr-level-5">
<table class="custom-table ellipsis-table last-column-center table-border">
<tbody>
<tr>
<td width="12%">001111</td>
<td width="18%">分部分项合计</td>
<td width="12%">154323000</td>
<td width="12%">20%</td>
<td width="12%">154561</td>
<td width="9%">154323000</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
2.css
/*折叠表格*/
.custom-fold-table .custom-table{100%;border-collapse:collapse;}
.custom-fold-table .custom-table>thead>tr{background-color:#fffbf8;}
.custom-fold-table .custom-table>thead>tr>th{position:relative;height:44px;font-size:14px;text-align:left;padding:0 10px;}
.custom-fold-table .custom-table>thead>tr>th:first-child{border-left:0;}
.custom-fold-table .custom-table.first-column-center>thead>tr>th:first-child,
.custom-fold-table .custom-table.first-column-center>tbody>tr>td:first-child{text-align:center;}
.custom-fold-table .custom-table.last-column-center>thead>tr>th:last-child,.custom-fold-table .custom-table.last-column-center>tbody>tr>td:last-child{text-align:center;}
.custom-fold-table .custom-table>tbody>tr:hover{background-color:#FEF3F3;}
.custom-fold-table .custom-table>tbody>tr>td{position:relative;text-align:left;padding:0 10px;color:#354052; border-bottom:1px solid #e5e5e5;height: 40px;}
.ellipsis-thead{table-layout:fixed;}
.ellipsis-thead th{100%;}
/*表格有边框*/
.custom-fold-table .table-border th{padding: 0 3px; border:1px solid #e5e5e5; border-right: none;}
.custom-fold-table .table-border>thead>tr>th:first-child{border-left:1px solid #e5e5e5;;}
.custom-fold-table .table-border td{border-left:1px solid #e5e5e5;}
.custom-fold-table .table-border{border-right:1px solid #e5e5e5; }
.tree-table .tr-level-2:last-of-type div:last-of-type:before{content:'';border-bottom:0;}
/*树形表格组件*/
/*.tree-table table>tbody>tr:hover{background-color:transparent;}*/
.tree-table .tr-level-1{position:relative;/*background-color:#fff;*/}
.tree-table .tr-level-2{position:relative;display:none;/*background-color:#f4f8fb;*/}
.tree-table .tr-level-2 table>tbody>tr>td:first-child{text-indent:35px;position:relative;}
.tree-table .tr-level-2:before{content:'';position:absolute;left:0;top:0;bottom:0;50px;border-top:1px solid #f2f2f2;border-bottom:1px solid #f2f2f2;}
.tree-table .tr-level-3{position:relative;display:none;/*background-color:#E9EFF5;*/}
.tree-table .tr-level-3 table>tbody>tr>td:first-child{text-indent:58px;}
.tree-table .tr-level-3:before{content:'';position:absolute;left:0;top:-1px;bottom:0;70px;border-top:2px solid #f2f2f2;border-bottom:2px solid #f2f2f2;}
.tree-table .tr-level-4,.tree-table .tr-level-5{position:relative;display:none;/*background-color:#e3eaf0;*/}
.tree-table .tr-level-4 table>tbody>tr>td:first-child{text-indent:80px;}
.tree-table .tr-level-5 table>tbody>tr>td:first-child{text-indent:104px;}
.tree-table .tr-level-4:before{content:'';position:absolute;left:0;top:-1px;bottom:0;90px;border-top:2px solid #f2f2f2;border-bottom:2px solid #f2f2f2;}
.tree-table .tr-level-5:before{content:'';position:absolute;left:0;top:-1px;bottom:0;110px;border-top:2px solid #f2f2f2;border-bottom:2px solid #f2f2f2;}
/*树形表格组件左边的线*/
.tree-table .tr-level-2:after{content:'';position:absolute;left:21px;top:0;height:100%;/*bottom:0;*/border-left:1px solid #CAD6E1;}
.tree-table .tr-level-1 .tr-level-2:last-child:after{top:0;height:21px;}
.tree-table .tr-level-1 .tr-level-2.last-child:after{top:0;height:21px;}
.tree-table .tr-level-3:after{content:'';position:absolute;left:41px;top:0;height:100%;border-left:1px solid #CAD6E1;}
.tree-table .tr-level-2 .tr-level-3:last-child:after{top:0;height:21px;}
.tree-table .tr-level-2 .tr-level-3.last-child:after{top:0;height:21px;}
.tree-table .tr-level-4:after,.tree-table .tr-level-5:after{content:'';position:absolute;left:61px;top:0;height:100%;border-left:1px solid #CAD6E1;}
.tree-table .tr-level-5:after{left:80px;}
.tree-table .tr-level-3 .tr-level-4:last-child:after{top:0;height:21px;}
.tree-table .tr-level-4 .tr-level-5:last-child:after{top:0;height:21px;}
.tree-table .tr-level-3 .tr-level-4.last-child:after{top:0;height:21px;}
.tree-table .tr-level-4 .tr-level-5.last-child:after{top:0;height:21px;}
.tree-table .tr-level-2 tr>td:first-child{background:url(../img/common/treetable-line.png) no-repeat 21px -55px;}
.tree-table .tr-level-2 tr>td.active:first-child{background-position:21px -5px;}
.tree-table .tr-level-3 tr>td:first-child{background-position:41px -55px;}
.tree-table .tr-level-3 tr>td.active:first-child{background-position:41px -5px;}
.tree-table .tr-level-4 tr>td:first-child{background-position:60px -55px;}
.tree-table .tr-level-5 tr>td:first-child{background-position:80px -55px;}
.tree-table .tr-level-4 tr>td.active:first-child{background-position:60px -5px;}
.tree-table .tr-level-5 tr>td.active:first-child{background-position:80px -5px;}
.tree-table .fold-click{cursor:pointer;}
.tree-table .fold-click>.arrow-icon{display:inline-block;vertical-align:middle;23px;height:20px;background:url(../img/common/sprite-up.png) no-repeat -1px 0;cursor:pointer;}
.tree-table .fold-click.active>.arrow-icon{background-position:-22px 0;}
3.js
// 折叠表格数组件
$(document).on('click','.tree-table .fold-click',function (e) {
if($(this).hasClass('active')){
$(this).toggleClass('active').closest('table').nextAll().children().slideUp();
}
else{
$(this).toggleClass('active').closest('table').nextAll().children().slideDown();
}
});
// 给每一层级的最后一行添加last-child类，兼容ie8左侧线条
$(".tree-table .tr-level-1 .tr-level-2:last-child,.tree-table .tr-level-2 .tr-level-3:last-child,.tree-table .tr-level-3 .tr-level-4:last-child,.tree-table .tr-level-4 .tr-level-5:last-child").addClass('last-child');
附图：
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版权声明：本文为CSDN博主「低_调_哥」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/caiyongshengcsdn/article/details/79308555