下面的代码将生成帖子类型“资源”的选择框，并根据您的帖子类型更改此值。

<select name="page_id" id="page_id" class="archive-dropdown" onchange="document.location.href=this.options[this.selectedIndex].value;">
        <option value="">Select Resource Post</option>
            <?php
             global $post;
             $args = array( \'numberposts\' => -1,\'post_type\'=>\'resources\');
             $posts = get_posts($args);
             foreach( $posts as $post ) : setup_postdata($post); ?>
            <option value="<? echo get_permalink($post->ID); ?>"><?php the_title(); ?></option>
            <?php endforeach; ?>
</select>