通常我用has_term() 和the_terms().

以下是示例

if( has_term(\'\', \'genre\') ){
    // do something
}

the_terms( $post->ID, \'category\', \'categories: \', \' / \' );

例如

echo get_the_term_list($post->ID, \'category\', \'\', \', \');

如果你感兴趣的话，我找到了这个工作方法。

if ( true === $show_categories && has_category() ) {
            ?>

            <div class="entry-categories">
                <span class="screen-reader-text"><?php _e( \'Categories\', \'twentytwenty\' ); ?></span>
                <div class="entry-categories-inner">
                    <?php the_category( \' \' ); ?>
                </div><!-- .entry-categories-inner -->
            </div><!-- .entry-categories -->

            <?php
            
        // custom post type
        } else {
            $post_type = get_post_type();  
            $category =  $post_type . \'_cat\';
            $taxonomy_names = wp_get_object_terms(get_the_ID(), $category);
            
            if (true === $show_categories && !empty($taxonomy_names) ) {
                $term = array_pop($taxonomy_names);
                ?>
                <div>
                    <span><?php _e( \'Categories:\', \'twentytwenty\' ); ?></span>
                    <a href="<?php echo get_term_link( $term->slug, $category ); ?> "> <?php echo $term->name; ?> </a>
                </div><!-- .entry-categories -->
                <?php
            }
            
        }