在woocommerce的产品页面中添加底部选项卡

<div class="product-tabs">
    <ul class="tabs">
        <li class="description_tab active"><a href="#tab-description">描述</a></li>
        <li class="additional_information_tab"><a href="#tab-additional_information">附加信息</a></li>
        <li class="reviews_tab"><a href="#tab-reviews">评论</a></li>
        <li class="custom_tab"><a href="#tab-custom">自定义选项卡</a></li>
    </ul>

    <div class="panel entry-content" id="tab-description">
        <?php the_content(); ?>
    </div>

    <div class="panel entry-content" id="tab-additional_information">
        <?php the_content(); ?>
    </div>

    <div class="panel entry-content" id="tab-reviews">
        <?php comments_template(); ?>
    </div>

    <div class="panel entry-content" id="tab-custom">
        <!-- 在这里添加自定义选项卡的内容 -->
    </div>
</div>