不找哪行的问题,添加不了行
</head>
<body>
<table border="1" width="50%" id="table">
<tr>
<th>学号</th>
<th>姓名</th>
<th>操作</th>
</tr>
<tr>
<td>xh001</td>
<td>王小明</td>
<td><a href="#" onclick = "deleteItem(this);return false;" >删除</a></td>
</tr>
<tr>
<td>xh002</td>
<td>刘小芳</td>
<td><a href="javasript:;" onclick = "deleteItem(this);" >删除</a></td>
</tr>
</table>
<input type="button" value="添加一行" onclick = "addTo();"/>
</body>
</html>