php分页显示，请问这如何解决page未定义?
<link href="css/style.css" rel="stylesheet">
<?php
include("conn/conn.php");
?>
<table width="563" height="587" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="563" height="587" valign="top" bgcolor="#FFFFFF"><table width="563" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="563" height="27" background="Images/fufei.gif"> </td>
</tr>
<tr>
<td height="96" align="center" valign="top"><br>
<?php
$date1=date("Y-m-d");
$sgsql=mysql_query("select * from tb_leaguerinfo where type='公寓信息' and showday>='$date1' and checkstate=1 ");
$sginfo=mysql_fetch_array($sgsql);
if($sginfo){
do{
?>
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="26"><span class="style1">『公寓信息』</span><span class="style8"> <?php echo $sginfo[title];?> </span><span class="style6"> <?php echo $sginfo[edate];?></span></td>
</tr>
<tr>
<td height="26"> <span class="style5"> <?php echo $sginfo[content];?></span></td>
</tr>
<tr>
<td height="26"> <span class="style8">联系人：<?php echo $sginfo[linkman];?> 联系电话：<?php echo $sginfo[tel];?></span></td>
</tr>
<tr>
<td height="3" background="Images/line1.gif"></td>
</tr>
</table>
<?php
}while($sginfo=mysql_fetch_array($sgsql));
}else{
?>
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="center">暂无电脑信息资源！</td>
</tr>
</table>
<?php
}
?>
</td>
</tr>
<tr>
<td align="center" valign="top"><table width="560" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="87" background="Images/guanggao.gif"> </td>
</tr>
</table></td>
</tr>
<tr>
<td height="27" background="Images/mian.gif"> </td>
</tr>
<tr>
<td height="140" align="center" valign="top">
<br>
<?php
$sql=mysql_query("select count(*) as total from tb_info where type='公寓信息' and checkstate=1");
$info=mysql_fetch_array($sql);
$total=$info['total'];
$page = 0;
$pagesize=4;
if ($total<=$pagesize){
$pagecount=1;
}
if(($total%$pagesize)!=0){
$pagecount=intval($total/$pagesize)+1;
}else{
$pagecount=$total/$pagesize;
}
if(($_GET['page'])==""){//这里是第75 行 报错page未定义
$page=1;
}else{
$page=intval($_GET['page']);
}
$gsql=mysql_query("select * from tb_info where type='电脑信息' and checkstate=1 order by edate desc limit ".($page-1)*$pagesize.",$pagesize");
$ginfo=mysql_fetch_array($gsql);
if($ginfo){
do{
?>
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="26"><span class="style1">『电脑信息』</span><span class="style8"> <?php echo $ginfo[title];?> </span><span class="style6"> <?php echo $ginfo[edate];?></span></td>
</tr>
<tr>
<td height="26"> <span class="style5"> <?php echo $ginfo[content];?></span></td>
</tr>
<tr>
<td height="26"> <span class="style8">作者：<?php echo $ginfo[linkman];?> 联系电话：<?php echo $ginfo[tel];?></span></td>
</tr>
<tr>
<td height="3" background="Images/line1.gif"></td>
</tr>
</table>
<?php
}while($ginfo=mysql_fetch_array($gsql));
?>
<table width="543" height="27" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="543" height="27" colspan="3" align="right"> 共有
<?php
echo $total;
?>
条 每页显示 <?php echo $pagesize;?> 条 第 <?php echo $page;?> 页/共 <?php echo $pagecount; ?> 页
<?php
if($page>=2)
{
?>
<a href="index.php?page=1" title="首页"></a><a href="index.php?page=<?php echo $page-1;?>" title="前一页">
<?php
}
if($pagecount<=4){
for($i=1;$i<=$pagecount;$i++){
?>
<a href="index.php?page=<?php echo $i;?>"><?php echo $i;?></a>
<?php
}
}else{
for($i=1;$i<=4;$i++){
?>
<a href="index.php?page=<?php echo $i;?>"><?php echo $i;?></a>
<?php }?>
<a href="index.php?page=<?php echo $page-1;?>" title="后一页"></a> <a href="index.php?page=<?php echo $pagecount;?>" title="尾页"></a>
<?php }?></td>
</tr>
</table>
<?php
}
else{
?>
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="center">暂无电脑信息资源！</td>
</tr>
</table>
<?php
}
?>
</td>
</tr>
</table>
</td>
</tr>
</table>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
报错提示：
Notice: Undefined index: page in D:\xampp\htdocs\Computer\main.php on line 75
分页显示，请问这如何解决未定义！
[解决办法]
if(($_GET['page'])==""){//这里是第75 行 报错page未定义
$page=1;
}else{
$page=intval($_GET['page']);
}
改为
$page = isset($_GET['page']) ? intval($_GET['page']) : 1; //取得传入的 page
if(!$page) $page = 1; //防止非法的 page 值，比如是 ?page=abc
[解决办法]
$page = empty($_GET['page'])?'0':1;
把75行那改改吧
[解决办法]
这个是警告，不是错误，不妨碍你程序的运行，你可以把程序警告给关闭。 display_error(0);
或者在那行先判断是否有page变量 $page = isset($_GET['page']) ? intval($_GET['page']) : 1 ;
