var table =document.getElementById("add_purchaseOrderDetailList_table");
var rows = table.rows.length;
var colums = table.rows[0].cells.length;
for(var i=0;i<rows;i++)
alert(table.rows[i].cells[0].innerHTML);
});
--------------------
<!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=gb2312" />
<title>无标题文档</title>
<script type="text/javascript" language="javascript">
function init()
{
var table =document.getElementById("tab1");
var rows = table.rows.length;
alert('行数'+rows);
var colums = table.rows[0].cells.length;
alert('列数'+colums);
}
</script>
</head> <body onload="init()">
<table width="80%" border="1" id="tab1">
<tr>
<td>1</td>
<td>2;</td>
<td>3;</td>
<td>4;</td>
</tr>
<tr>
<td>22;</td>
<td>21;</td>
<td>34;</td>
<td>12;</td>
</tr>
<tr>
<td>12;</td>
<td>21;</td>
<td>45;</td>
<td>65;</td>
</tr>
</table> </body>
</html>
下面这个能赋值
$(document).ready(function () {
$('#add_purchaseOrderDetailList_table tr').each(function () {
alert($(this).children('td').eq(0).html()); //td 第0列
var url = $(this).children('td').eq(0).html()
var name = $(this).children('td').eq(1).html() //td 第1列
$("#bootImg").attr("src",$(this).children('td').eq(0).html());
$("#bootImg").attr("alt",name);
$("#bootImg").attr("title",name);
});
});