必须解决这个问题：
带有非常规子菜单操作，由中的@t31os提供this Answer
和一些jQueryadd_action( \'admin_menu\', \'wpse_66020_admin_menu_new_item\' );
add_action( \'admin_head\', \'wpse_66020_add_jquery\' );
function wpse_66020_admin_menu_new_item()
{
global $submenu;
$submenu[\'index.php\'][500] = array(
\'<div id="wpse-66020">Go to WPSE</div>\'
, \'manage_options\'
, \'https://wordpress.stackexchange.com/\'
);
}
function wpse_66020_add_jquery()
{
?>
<script type="text/javascript">
jQuery(document).ready( function($) {
$(\'#wpse-66020\').parent().attr(\'target\',\'_blank\');
});
</script>
<?php
}
<小时>Resulting in this: 
单击放大
