div包装器位于while循环中，并由if子句拆分。这无法正常工作，因为您的循环将生成多达14个id为ajax的div。

将开始div标记放在if ( $the_query->have_posts() ) { 以及之后的关闭wp_reset_postdata(); 你应该没事的。

Edit

您确定没有遗漏任何打开/关闭php标记吗？e、 g.load\\u more\\u button（）是用php包装的，但您之前没有关闭php。

<?php
/*
 * Template Name:
 */

get_header();
get_template_part (\'inc/carousel\');

$the_query = new WP_Query( [
    \'posts_per_page\' => 14,
    \'paged\' => get_query_var(\'paged\', 1)
] );

if ( $the_query->have_posts() ) { ?>
    <div id="ajax">
    <?php
    $i = 0;
    while ( $the_query->have_posts() ) { $the_query->the_post();

        if ( $i % 7 === 0 ) { // Large post: on the first iteration and every 7th post after... ?>
        <article <?php post_class( \'col-md-12\' ); ?>>
            <?php the_post_thumbnail(\'large-thumbnail\'); ?>
            <h2><a class="post-title" href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
            <p class="post-excerpt"><?php echo get_the_excerpt(); ?></p>
            <?php get_template_part( \'share-buttons\' ); ?>
            <a class="moretext" href="<?php the_permalink(); ?>">Read more</a>
            <?php comments_popup_link (\'No Comments\', \'1 Comment\', \'% Comments\', \'comment-count\', \'none\'); ?>
            </article><?php

        } else { // Small posts ?>

            <article <?php post_class( \'col-md-4\' ); ?>>
                <?php the_post_thumbnail( \'medium-thumbnail\' ); ?>
                <h2><a class="post-title" href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
                <p class="post-excerpt"><?php echo get_the_excerpt(); ?></p>
                <?php get_template_part( \'share-buttons\' ); ?>
                <a class="moretext" href="<?php the_permalink(); ?>">Read more</a>
                <?php comments_popup_link (\'No Comments\', \'1 Comment\', \'% Comments\', \'comment-count\', \'none\'); ?>
            </article>
            <?php
        }
        $i++;
    }?>
    </div>
    <?php if(get_query_var(\'paged\') < $the_query->max_num_pages) {
       load_more_button();
    }
}
elseif (!get_query_var(\'paged\') || get_query_var(\'paged\') == \'1\') {
    echo \'<p>Sorry, no posts matched your criteria.</p>\';
}
wp_reset_postdata();
get_footer();