我还发现全局排队或从短代码内部排队的典型做法存在问题。

在我的站点上实现代码高亮显示时，我也遇到了类似的挑战——我只想在必要时加载脚本和样式。我最后检查了<pre> 标记为要输出的条件：

{% if \'<pre>\' in get_the_content() %}
    <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/solarized_dark.min.css">
    <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/highlight.min.js"></script>
    {% if has_term( \'twig\', \'post_tag\' ) %}
    <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/languages/twig.min.js"></script>
    {% endif %}
    <script type="text/javascript">
        jQuery(document).ready(function ($) {
            $(\'pre\').each(function (i, e) {
                hljs.highlightBlock(e)
            });
        });
    </script>
{% endif %}

首先在短代码回调函数外部注册样式表，然后在短代码回调函数中将其排队。例如：-

    function wpsoe_191512_avatar_shortcode_wp_enqueue_scripts() {
  wp_register_style( \'get-avatar-style\', plugins_url( \'/css/style.css\' , __FILE__ ), array(), \'1.0.0\', all );
  }


  add_action( \'wp_enqueue_scripts\', \'brw_avatar_shortcode_wp_enqueue_scripts\' );

  if ( function_exists( \'get_avatar\' ) ) {

  function wpse_165754_user_avatar_shortcode ( $attributes ) {
            global $current_user;
            get_currentuserinfo();
            extract(shortcode_atts(array(
             "id" => $current_user->ID,
             "size" => 32,
             "default" => \'mystery\',
             "alt" => \'\',
             "class" => \'\',
      ), 
      $attributes, \'get_avatar\' ));
      $get_avatar= get_avatar( $id, $size, $default, $alt );

      wp_enqueue_style( \'get-avatar-style\' );

      return \'<span class="get_avatar \'.$class.\'">\'.$get_avatar.\'</span>\';
      }
      add_shortcode (\'get_avatar\', \'wpse_165754_user_avatar_shortcode\');
      }