隐藏按钮button
<td>
<input id="del" type="button" value="删除" onclick="userDel(${user.id})" />
</td>
<!-- 隐藏删除按钮
<script language="javascript">
var status = ${user.id};
if (status==1){
document.getElementById("del").style.display="none";
}
</script>
-->