怎么去把这些格式添加到cell中呢？很简单，我们只需要把样式添 加到对应的标签对（即闭合标签）即可。如<td></td>，给标签对<td></td>添加样式，如 下： <td style="vnd.ms-excel.numberformat:@">410522198402161833</td>
同样，也可以给<div></div>添加样式，也可以给<tr>< /tr>，<table></table>添加样式;
当在父标签对和子标签对都添加样式时，数据会以哪一个样式呈现 呢？
经过测试，会以离数据最近的样式呈现。
echo "<td style='vnd.ms-excel.numberformat:@'>".$printable."</td>n";
$filename=
iconv("UTF-8", "GB2312//IGNORE","会员名.xls");//date('Y-m-d-H-i-s').".xls";
header("Content-type:application/vnd.ms-excel");
Header("Accept-Ranges:bytes");
Header("Content-Disposition:attachment;filename=".$filename); //$filename导出的文件名
header("Pragma: no-cache");
header("Expires: 0");
echo '<html xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:office:excel"
xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="expires" content="Mon, 06 Jan 1999 00:00:01 GMT">
<meta http-equiv=Content-Type content="text/html; charset=gb2312">
<!--[if gte mso 9]><xml>
<x:ExcelWorkbook>
<x:ExcelWorksheets>
<x:ExcelWorksheet>
<x:Name></x:Name>
<x:WorksheetOptions>
<x:DisplayGridlines/>
</x:WorksheetOptions>
</x:ExcelWorksheet>
</x:ExcelWorksheets>
</x:ExcelWorkbook>
</xml><![endif]-->
</head>';
echo "<table><tr>
<th>".iconv("UTF-8", "GB2312//IGNORE","会员名")."</th>
<th>".iconv("UTF-8", "GB2312//IGNORE","账号")."</th>
<th>".iconv("UTF-8", "GB2312//IGNORE","联系人")."</th>
</tr>";
foreach ($list as $v)
{
echo "<tr>";
echo "<td>".iconv("UTF-8", "GB2312//IGNORE", $v["user_name"])."</td>";
echo "<td style='vnd.ms-excel.numberformat:@'>".$v["account_id"]."</td>";
echo "<td>".iconv("UTF-8", "GB2312//IGNORE", $v["contact_name"])."</td>";
echo "</tr>";
}
echo "</table>";
