<table cellpadding="0" cellspacing="5" id="mainmenu">
    <tbody>
        <tr>
            <td valign="top" class="menu_sub">
                something
            </td>
            <td valign="top" class="menu_sub">
                something
            </td>
            <td valign="top" class="menu_sub">
                something
            </td>
        </tr>
    </tbody>
</table>

我想删除我桌子前面的前两个td,我该怎么办？

$('#mainmenu td').remove();