大虾帮忙!
<html><head><title>上载文件表单</title></head>
<body>
<form enctype="multipart/form-data" action="upload.php" method="post">
<input type="hidden" name="max_file_size" value="100000">
<center>请选择文件:
<input name="aa" type="file">
<input type="submit" value="上传文件">
</center>
</form>
</body>
</html>
upload.php
<?php
$filename=$aa_name;
$newfile=$filename.".bak";
copy($filename,$newfile);
?>
怎么上传不了文件啊!
小弟是菜鸟,各位大虾帮忙!