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以下为引用的内容：
<?
if($_FILES['sytp']['name']!="none"&&$_FILES['sytp']['name']!=""){//判断上传文件是否为空
$thistype=$_FILES['sytp']['type'];//将上传的类型传给$thistype
//echo time().$_FILES['sytp']['name'];
//exit;
if("image/pjpeg"==$thistype or "application/x-shockwave-flash"==$thistype or "image/gif"==$thistype){//判断是否是我要的类型
$file_name = "shouyetupian/".time().$_FILES['sytp']['name'];//time()是为了区分两个文件不是同一时间传的
include("../connect.php");//调用connect.php里的内容
$sql="select count(*) from shangchuantu";
$result=mysql_query($sql,$db);
$jie=mysql_fetch_row($result);
$zhong=$jie[0];
if($zhong<5){
$sql1="select max(paixu) from shangchuantu";
$result1=mysql_query($sql1,$db);
$jie1=mysql_fetch_row($result1);
$zhong1=$jie1[0];
$zhong1=$zhong1+1;
$query="insert into shangchuantu values('','$file_name','".$_POST['url']."','','$zhong1')";
mysql_query($query,$db);
if(!move_uploaded_file($_FILES['sytp']['tmp_name'], $file_name)) {//上传文件，$_FILES['sctb']['tmp_name']临时目录传到$file_name实际目录
?>
<script language="javascript">
alert("文件上传失败，请稍候再试");
window.history.back();
</script>
<?
}else{//上传成功
?>
<script language="javascript">
alert("文件上传成功！");
location.href="shanchuantu.php";
</script>
<?
}
}else{
?>
<script language="javascript">
alert("图片不能超过5张");
window.history.back();
</script>
<?
}
}else{//如果类型不对
?>
<script language="javascript">
alert("文件上传失败，请稍候再试");
window.history.back();
</script>
<?
}
}else{
?>
<script language="javascript">
alert("请选择上传图片");
window.history.back();
</script>
<?
}
?>
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