报错： Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in D:\AppServ\www\web\yonghuzhucedetail.php on line 65 代码：<?phpsession_start();if($_SESSION["username"]==""){ echo "<script>javascript:alert('对不起，请您先登陆！');location.href='index.php';</script>"; exit;}include_once 'conn.php';$xuehao=$_GET["xuehao"];$username=$_GET["username"];?><html><head><title>校友录系统</title><LINK href="qtimages/style.css" type=text/css rel=stylesheet><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><style type="text/css"><!--.STYLE1 { color: #529915; font-weight: bold;}.STYLE4 {color: #FFFFFF; font-weight: bold; }.STYLE2 {color: #6D2E18; font-weight: bold; }--></style></head><body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><table width="993" height="1092" border="0" align="center" cellpadding="0" cellspacing="0" id="__01"> <tr> <td><?php include_once 'qttop.php';?></td> </tr> <tr> <td><table id="__01" width="993" height="846" border="0" cellpadding="0" cellspacing="0"> <tr> <td valign="top"><?php include_once 'qtleft.php';?></td> <td height="830" valign="top"><table id="__01" width="785" height="830" border="0" cellpadding="0" cellspacing="0"> <tr> <td valign="top"><table width="785" height="833" border="0" cellpadding="0" cellspacing="0" id="__01"> <tr> <td width="785" height="40" background="qtimages/1_02_02_02_01.jpg"><table width="100%" height="19" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="12%" align="center" valign="bottom"><span class="STYLE4">成员详细</span></td> <td width="74%" valign="bottom"> </td> <td width="14%" valign="bottom" class="STYLE4"></td> </tr> </table></td> </tr> <tr> <td height="760" valign="top"><table id="__01" width="785" height="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="19" background="qtimages/1_02_02_02_02_01.jpg"> </td> <td width="737" height="176" valign="top"><p align="center"> <?php if($xuehao!=null) { $sql="select * from yonghuzhuce where xuehao=".$xuehao; } if($username!=null) { $sql="select * from yonghuzhuce where xingming='".$username."'"; } $query=mysql_query($sql);$rowscount=mysql_num_rows($query);if($rowscount>0){?></p> <table width="100%" border="1" align="center" cellpadding="3" cellspacing="1" bordercolor="#00FFFF" style="border-collapse:collapse"> <td width='11%' height="30">学号：</td> <td width='39%' height="30"><?php echo mysql_result($query,0,xuehao);?></td> <td colspan="2" rowspan="7" align="center"><img src="<?php echo mysql_result($query,0,zhaopian);?>" width="269" height="199"></td> </tr><tr> <td height="30">姓名：</td> <td height="30"><?php echo mysql_result($query,0,xingming);?></td> </tr> <tr> <td width='11%' height="30">身份证：</td> <td width='39%' height="30"><?php echo mysql_result($query,0,shenfenzheng);?></td> </tr> <tr> <td width='11%' height="30">学校：</td> <td width='39%' height="30"><?php echo mysql_result($query,0,xuexiao);?></td> </tr> <tr> <td height="30">电话：</td> <td height="30"><?php echo mysql_result($query,0,dianhua);?></td> </tr> <tr> <td width='11%' height="30">邮箱：</td> <td width='39%' height="30"><?php echo mysql_result($query,0,youxiang);?></td> </tr> <tr> <td height="30">性别：</td> <td height="30"><?php echo mysql_result($query,0,xingbie);?></td> <tr> <td width='11%' height="145">备注：</td> <td colspan="3"><?php echo mysql_result($query,0,beizhu);?></td> <tr> <td colspan="4" align="center"><input type="button" name="Submit" value="返回" onClick="javascript:history.back()" /> </td> </tr> </table> <?php }?> <p></p></td> <td width="29" background="qtimages/1_02_02_02_02_03.jpg"> </td> </tr> </table></td> </tr> <tr> <td height="12"><img src="qtimages/1_02_02_02_03.jpg" width="785" height="12" alt=""></td> </tr> </table></td> </tr> <tr> <td height="13"><img src="qtimages/1_02_02_04.jpg" width="785" height="13" alt=""></td> </tr> </table></td> </tr> </table></td> </tr> <tr> <td><?php include_once 'qtdown.php';?></td> </tr></table></body></html>
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