<ul>
<?php
global $post;
$my_posts= get_posts(array(
'post_type' => array('post','item'),
'numberposts' => 10
));
foreach($my_posts as $post):setup_postdata($post);
?>
<li><?php the_time('Y.m.d'); ?>：<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>
</ul>