用JQUERY的语法写了段,没有测试过,不知对楼主有没帮助 假设需要第二行 var index=2 var line=$('#table').find('tr').eq(index) //找到第二行 var value var tds=line.find('td') //找到第二行中所有的TD for(var i=0;i<tds.length;i++){ value+=parseInt(tds.eq(i).html());//假设TD中没有其他控件的情况且都是数字 value+=tds.eq(i).html(); //假设TD中没有其他控件的情况且不都是数字 } var newTd=('<td width=100%></td>') line.html(newTd) line.find('td').text(value)
$("table>tr").each(function(index){
values[index]= $(this).find("td :nth-child(2)").val();
});
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
<table width="500" border="1" cellspacing="0" cellpadding="0" id="aa">
<tr>
<td> </td>
<td> </td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>5</td>
<td>6</td>
</tr>
</table>
<script type="text/javascript">
(function setTable(index){
var tableObj = document.getElementById('aa');
var trs = tableObj.rows;
var n = parseInt(trs[0].cells[index].innerHTML);
for(var i=1,len=trs.length; i<len; i++){
var oTd = trs[i].cells[index];
n+= parseInt(oTd.innerHTML) || 0;
oTd.parentNode.removeChild(oTd);
}
trs[0].cells[index].innerHTML = n;
trs[0].cells[index].setAttribute('rowspan',trs.length);
})(2);
</script>
</body>
</html>
假设需要第二行
var index=2
var line=$('#table').find('tr').eq(index)
//找到第二行
var value
var tds=line.find('td')
//找到第二行中所有的TD
for(var i=0;i<tds.length;i++){
value+=parseInt(tds.eq(i).html());//假设TD中没有其他控件的情况且都是数字
value+=tds.eq(i).html(); //假设TD中没有其他控件的情况且不都是数字
}
var newTd=('<td width=100%></td>')
line.html(newTd)
line.find('td').text(value)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>取值并合并</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function () {
$("input").click(function () {
merge(3);//合并第3列
});
});
function merge(cols) {
var result = 0;
$("#tab tr").each(function (i) {//tab是table id
var td = $(this).find("td:eq(" + (cols - 1) + ")");
result += eval(td.text());
if (i != 0) {
td.remove();
} else {
td.attr("rowspan", 5);
}
}).end().find("td:eq(" + (cols - 1) + ")").text(result);
}
</script>
</head><body>
<input type="button" value="合并取值" />
<table width="500" border="1" cellspacing="0" cellpadding="0" id="tab">
<tr>
<td> </td>
<td> </td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>5</td>
<td>6</td>
</tr>
</table>
</body>
</html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>取值并合并</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function () {
$("input").click(function () {
merge(3);//合并第3列
});
});
function merge(cols) {
var result = 0;
var tr = $("#tab tr");
tr.each(function (i) {//tab是table id
var td = $(this).find("td:eq(" + (cols - 1) + ")");
result += eval(td.text());
if (i != 0) {
td.remove();
} else {
td.attr("rowspan", tr.size());
}
}).end().find("td:eq(" + (cols - 1) + ")").text(result);
}
</script>
</head><body>
<input type="button" value="合并取值" />
<table width="500" border="1" cellspacing="0" cellpadding="0" id="tab">
<tr>
<td> </td>
<td> </td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>5</td>
<td>6</td>
</tr>
</table>
</body>
</html>
这样就更完美了