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分享<table >
<tr>
<td>名称</td>
<td>说明</td>
<td>操作</td>
</tr>
<tr>
<td>你</td>
<td>一样</td>
</tr>
</table>
<!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>换行</title>
<style>
#test{
width:200px;
height:200px;
border:1px solid red;
}
</style>
<script src="jquery-1.3.2.js"></script>
<script>
$(function(){
$("#btn").click(function(){
$("#test tr:eq(1)").append("<td>和</td>");
});
});
</script>
</head>
<body>
<table id="test">
<tr>
<td>名称</td>
<td>说明</td>
<td>操作</td>
</tr>
<tr>
<td>你</td>
<td>一样</td>
</tr>
</table>
<input type="button" value="添加" id="btn" />
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>new document</title>
<script type="text/javascript">
window.onload = function(){
var tb = document.getElementById("tb");
var td = document.createElement("td");
td.innerHTML = "123";
tb.rows[1].appendChild(td);
};
</script>
</head>
<body>
<table id="tb">
<tr>
<td>名称</td>
<td>说明</td>
<td>操作</td>
</tr>
<tr>
<td>你</td>
<td>一样</td>
</tr>
</table>
</body>
</html>