我相信你所希望的行为不是WordPress核心的一部分。上次我需要它时，我从用于改进帖子类型突出显示的帖子类型归档链接插件中改编了几个函数。要使用它，只需以常规方式添加菜单项，并将这些功能放入插件或主题中。

// Get menus to play nicely with the submenu script
// blissfully borrowed from Post Type Archive Links plugin, thanks @stephenharris, @F J Kaiser, @ryancurban
function mrw_tax_archive_current( $items ) {
    foreach ( $items as $item ) {
        if ( \'taxonomy\' !== $item->type )
            continue;

        global $post;

        if( !$post )
            continue;

        $taxonomy = $item->object;
        $taxonomy_term = $item->object_id;
        if (
            ! is_tax( $taxonomy, $taxonomy_term )
            AND ! has_term( $taxonomy_term, $taxonomy, $post->ID )
        )
            continue;

        // Make item current
        $item->current = true;
        $item->classes[] = \'current-menu-item\';

        // Loop through ancestors and give them \'parent\' or \'ancestor\' class
        $active_anc_item_ids = mrw_get_item_ancestors( $item );
        foreach ( $items as $key => $parent_item ) {
            $classes = (array) $parent_item->classes;

            // If menu item is the parent
            if ( $parent_item->db_id == $item->menu_item_parent ) {
                $classes[] = \'current-menu-parent\';
                $items[ $key ]->current_item_parent = true;
            }

            // If menu item is an ancestor
            if ( in_array( intval( $parent_item->db_id ), $active_anc_item_ids ) ) {
                $classes[] = \'current-menu-ancestor\';
                $items[ $key ]->current_item_ancestor = true;
            }

            $items[ $key ]->classes = array_unique( $classes );
        }
    }

    return $items;
}
add_filter(\'wp_nav_menu_objects\',\'mrw_tax_archive_current\');

function mrw_get_item_ancestors( $item ) {
    $anc_id = absint( $item->db_id );

    $active_anc_item_ids = array();
    while (
        $anc_id = get_post_meta( $anc_id, \'_menu_item_menu_item_parent\', true )
        AND ! in_array( $anc_id, $active_anc_item_ids )
    )
        $active_anc_item_ids[] = $anc_id;

    return $active_anc_item_ids;
}