upload问题，不知道哪里错了。
upload.html
<html> <head> <title>upload</title> </head><body><form action="upload.php" method="post" enctype="multipart/form-date"> <input type="file" name="pic"> <input type="submit" name="sub" value="upload"></form></body></html>
<?php echo '<pre>'; print_r($_POST); print_r($_FILES); echo '</pre>'; ?>
