我试图将查询菜单的一页标记为活动-->（我找到了答案）

function render_main_menu(){
$args = array(
    \'post_type\'     => \'a_cpt\',
    \'tax_query\' => array(
        array(
            \'taxonomy\'  => \'your_tax\',
            \'field\'     => \'slug\',
            \'terms\'     => \'your_term\',
        ),
    ),
);
$loop = new WP_Query($args);

$thetitle = strtolower(get_the_title());
$thetitle = preg_replace("/[\\s]/", "-", $thetitle);

while($loop->have_posts()) : $loop->the_post();

    //here the solution--> 
    //marks as bold only the current post -->
    if ( $thetitle == current_post_slug()  ) : ?>

        <div style="font-weight: bold;">

    <?php else : ?>

        <div>

    <?php endif;

    echo \'<a href="\'.get_permalink().\'">\'.get_the_title().\'</a>\'; ?>

        </div>

<?php endwhile; 
wp_reset_postdata();

add_action( \'genesis_after_header\', \'render_main_menu\', 15 );

function current_post_slug() {
    global $post;
    $post_slug=$post->post_name;
    if ( $post_slug && ! is_wp_error( $terms ) ) {
        return $post_slug;
    }
}