upload.php --->文件上传
<?phpheader("Content-type:text/html;charset=utf-8");print_r($_FILES['file']);
$filename=$_FILES['file']['name'];
if(!$_FILES['file']['error']){ if(move_uploaded_file($_FILES['file']['tmp_name'],"./upload/".$filename))
{ echo "文件上传成功"; }else{ echo "文件上传失败"； ｝}else{ echo "文件上传错误"; }?>