<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
table {
margin: 100px auto;
border: 1px solid black;
border-spacing: 0;
}
td {
border: 1px solid black;
border-collapse: collpase;
}
</style>
</head>
<body>
<table class="table table-striped table-sm">
<thead>
<tr>
<th colspan="3">交叉路口名称</th>
<th>道路名称</th>
<th>顺序</th>
<th>路宽</th>
<th>车道类型</th>
<th>车道方向</th>
<th> 操作</th>
</tr>
</thead>
<tbody>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口1</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口1</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口2</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口2</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口2</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
<tr class="order">
<td class="f1" colspan="3">环城南一路与骖鸾路交叉口2</td>
<td>兴和路</td>
<td>西南到东北</td>
<td>3.596</td>
<td>机动车道</td>
<td>出口道</td>
</tr>
</tbody>
</table>
<script>
//利用去重原理
var arr = [];
var f1 = document.getElementsByClassName("f1");
// console.log(f1);//td.f1 length 8
// console.log(f1[0].innerHTML);//环城南一路与骖鸾路交叉口
for (let i = 0; i < f1.length; i++) {
if (arr.indexOf(f1[i].innerHTML) == -1) {
arr.push(f1[i].innerHTML);
var index = i; //index是第一个没有重复的元素
document.getElementsByClassName("f1")[i].style.borderBottom =
0 + "px";
} else {
document.getElementsByClassName("f1")[i].style.display = "none"; //隐藏重复的元素
document.getElementsByClassName("f1")[index].rowSpan += 1; //删去重复的元素,就给第一个元素的rowspan+1
}
}
console.log(arr);
</script>
</body>
</html>
应用场景 比如商城的sku 表格
