/显示上级文件夹/,并且禁止输入
<form method="post" enctype="multipart/form-data" action="Upload.ashx" >
<input type="file" name="fileName" />
<input type="submit" name="上传" />
</form>
<input type="text" name="test" disabled="disabled" value=''/显示上级文件夹/>