<html>
<HEAD>
<script type="text/javascript" src="lang/jquery-1.3.2.min.js"> </script> <script type="text/javascript">
$(document).ready(function() {
})
</script>
</head>
<body>
<table id="sist" border="1">
<thead> <tr>
<th ><font size=2>姓名</font></th>
<th ><font size=2>学号</font></th>
<th ><font size=2>性别</font></th>
<th ><font size=2>出生日期</font></th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>11</td>
<td>22</td>
<td>33</td>
<td>44</td>
</tr>
<tr>
<td>111</td>
<td>222</td>
<td>333</td>
<td>444</td>
</tr>
<tr>
<td>1111</td>
<td>2222</td>
<td>3333</td>
<td>4444</td>
</tr>
<tr>
<td>11111</td>
<td>22222</td>
<td>33333</td>
<td>444444</td>
</tr>
</tbody>
</table>
<div class="stu">
<input id="addRow" type="Button" value="追加" onclick="addtr()">
<input type="Button" value="变更" onclick="edit('test')">
<input type="Button" value="保存" onclick="">
<input type="Button" value="删除" onclick="deltr('test')"> </div>
</html>
</html>
<HEAD>
<script type="text/javascript" src="lang/jquery-1.3.2.min.js"> </script> <script type="text/javascript">
$(document).ready(function() {
})
</script>
</head>
<body>
<table id="sist" border="1">
<thead> <tr>
<th ><font size=2>姓名</font></th>
<th ><font size=2>学号</font></th>
<th ><font size=2>性别</font></th>
<th ><font size=2>出生日期</font></th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>11</td>
<td>22</td>
<td>33</td>
<td>44</td>
</tr>
<tr>
<td>111</td>
<td>222</td>
<td>333</td>
<td>444</td>
</tr>
<tr>
<td>1111</td>
<td>2222</td>
<td>3333</td>
<td>4444</td>
</tr>
<tr>
<td>11111</td>
<td>22222</td>
<td>33333</td>
<td>444444</td>
</tr>
</tbody>
</table>
<div class="stu">
<input id="addRow" type="Button" value="追加" onclick="addtr()">
<input type="Button" value="变更" onclick="edit('test')">
<input type="Button" value="保存" onclick="">
<input type="Button" value="删除" onclick="deltr('test')"> </div>
</html>
</html>
var _tr="<tr><td> </td><td> </td><td> </td><td> </td></tr>";
$("#sist").append(_tr);
}
function edit(){
//修改第2行第2列 注意从0开始
var row=2;
var col=2
var content="zhangsan";
$("#sist").find("tr").eq(row).find("td").eq(col).html(content);
}
function deleterow(){
//删除第二行
var row=2;
//$("#sist").remove($("#sist").find("tr").eq(row));
$("#sist").find("tr").eq(row).remove();
}