与注释一样，唯一的方法是使用自定义sql查询，因此：

global $wpdb;
$mypages = $wpdb->get_results( "SELECT post_title, post_name FROM $wpdb->posts
 WHERE post_type = \'page\' 
 AND post_status = \'publish\' 
 AND parent = \'0\'");

if (count($mypages) > 0){
    foreach ($mypages as $page){
        //do you stuff
        //$page[\'post_title\'] for title
        //$page[\'post_name\'] for slug
    }
}