我有一个HTML表格，其中包含2个标题行：
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<table id="res-table">
<tr>
<th rowspan="2">H1</th>
<th rowspan="2" onclick="sortTable(1)">H2</th>
<th colspan="2">H3</th>
<th colspan="2">H4</th>
<th rowspan="2">H5</th>
</tr>
<tr>
<th>A1</th>
<th>A2</th>
<th>A3</th>
<th>A4</th>
</tr>
<tr>
<td>1</th>
<td>2</th>
<td>3</th>
<td>4</th>
<td>5</th>
<td>6</th>
<td>7</th>
</tr>
<tr>
<td>11</th>
<td>21</th>
<td>31</th>
<td>41</th>
<td>51</th>
<td>61</th>
<td>71</th>
</tr>
</table>
<script>
function sortTable(n) {
var table, rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
table = document.getElementById("res-table");
switching = true;
//Set the sorting direction to ascending:
dir = "asc";
/*Make a loop that will continue until
no switching has been done:*/
while (switching) {
//start by saying: no switching is done:
switching = false;
rows = table.getElementsByTagName("tr");
/*Loop through all table rows (except the
first, which contains table headers):*/
for (i = 1; i < (rows.length - 1); i++) {
//start by saying there should be no switching:
shouldSwitch = false;
/*Get the two elements you want to compare,
one from current row and one from the next:*/
x = rows[i].getElementsByTagName("td")[n];
y = rows[i + 1].getElementsByTagName("td")[n];
/*check if the two rows should switch place,
based on the direction, asc or desc:*/
if (dir == "asc") {
if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
//if so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
} else if (dir == "desc") {
if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
//if so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
}
}
if (shouldSwitch) {
/*If a switch has been marked, make the switch
and mark that a switch has been done:*/
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
//Each time a switch is done, increase this count by 1:
switchcount ++;
} else {
/*If no switching has been done AND the direction is "asc",
set the direction to "desc" and run the while loop again.*/
if (switchcount == 0 && dir == "asc") {
dir = "desc";
switching = true;
}
}
}
}
</script>
</body>
</html>
我需要通过点击标题对几列进行排序。例如，第二个和最后一个。
所以，我从以下代码示例：https://www.w3schools.com/howto/howto_js_sort_table.asp
该脚本适用于简单表，就像他们的示例一样。但它对我不起作用。我猜它与rowspan属性有关。
这是对的吗？我如何调整他们的代码，或者我可以对行跨越的列进行排序？
感谢。
答案 0 :(得分：2)
你错过了一件事。
从i=2开始循环，（按照评论），因为我们必须跳过第1行和第2行，它们都是标题。
更新后的代码：
function sortTable(n) {
var table, rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
table = document.getElementById("myTable");
switching = true;
//Set the sorting direction to ascending:
dir = "asc";
/*Make a loop that will continue until
no switching has been done:*/
while (switching) {
//start by saying: no switching is done:
switching = false;
rows = table.getElementsByTagName("tr");
/* *********** Loop through all table rows (except the
first, which contains table headers): *********** */
<!-- BUT HERE WE NEED TO SKIP THE SECOND ROW TOO -->
<!-- make i=2 -->
for (i = 2; i < (rows.length - 1); i++) {
//start by saying there should be no switching:
shouldSwitch = false;
/*Get the two elements you want to compare,
one from current row and one from the next:*/
x = rows[i].getElementsByTagName("TD")[n];
y = rows[i + 1].getElementsByTagName("TD")[n];
/*check if the two rows should switch place,
based on the direction, asc or desc:*/
if (dir == "asc") {
if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
//if so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
} else if (dir == "desc") {
if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
//if so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
}
}
if (shouldSwitch) {
/*If a switch has been marked, make the switch
and mark that a switch has been done:*/
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
//Each time a switch is done, increase this count by 1:
switchcount ++;
} else {
/*If no switching has been done AND the direction is "asc",
set the direction to "desc" and run the while loop again.*/
if (switchcount == 0 && dir == "asc") {
dir = "desc";
switching = true;
}
}
}
}<!DOCTYPE html>
<html>
<head>
</head>
<body>
<table border="1px" id="myTable">
<tr>
<th rowspan="2" onclick="sortTable(0)">H1</th>
<th rowspan="2" onclick="sortTable(1)">H2</th>
<th colspan="2">H3</th>
<th colspan="2">H4</th>
<th rowspan="2" onclick="sortTable(6)">H5</th>
</tr>
<tr>
<th onclick="sortTable(2)">A1</th>
<th onclick="sortTable(3)">A2</th>
<th onclick="sortTable(4)">A3</th>
<th onclick="sortTable(5)">A4</th>
</tr>
<!--<tr>
<th onclick="sortTable(0)">H2</th>
<th>H2</th>
<th>H2</th>
<th>H2</th>
<th>H2</th>
<th>H2</th>
<th>H2</th>
</tr>-->
<tr>
<td>1</th>
<td>2</th>
<td>3</th>
<td>4</th>
<td>5</th>
<td>6</th>
<td>7</th>
</tr>
<tr>
<td>11</th>
<td>21</th>
<td>31</th>
<td>41</th>
<td>51</th>
<td>61</th>
<td>71</th>
</tr>
</table>
</body>
</html>
答案 1 :(得分：0)
我最终使用tablesorter。虽然这是我第一次触及jQuery，但使用它还是小菜一碟！ 谢谢大家！