WordPress不知道是哪个用户创建了哪个，因此首先需要将创建者的数据存储在新创建的用户元中，这样您就可以这样做：

add_action( \'user_register\', \'Store_creator\' );
function Store_creator($user_id){
    $creator = wp_get_current_user();
    //only do this when none admin creates the user
    if ( $creator->roles[0] == \'administrator\' ) return;

    update_user_meta($user_id,\'_creator\',$creator->ID);
}

add_action(\'pre_user_query\',\'custom_pre_user_query\');
function custom_pre_user_query($user_search) {
    global $wpdb;
    $user = wp_get_current_user();
    if ( $user->roles[0] != \'administrator\' ) { 
        global $wpdb;
        $user_search->query_where = 
        str_replace(\'WHERE 1=1\', 
            "WHERE 1=1 AND {$wpdb->users}.ID IN (
                 SELECT wp_usermeta.user_id FROM $wpdb->usermeta 
                    WHERE wp_usermeta.meta_key = \'_creator\' 
                    AND wp_usermeta.meta_value = {$user->ID})", 
            $user_search->query_where
        );
    }
}