WordPress 技巧：只有指定的 Shortcode 存在时才载入相关脚本文件

function wpjam_shortcode_scripts(){
  global $post;
  if( has_shortcode( $post->post_content, 'your-shortcode') ){
    wp_enqueue_script( 'whatever');//检测到有使用短码后需要做的事,大家随意
  }
}
add_action( 'wp_enqueue_scripts', 'wpjam_shortcode_scripts');

function wpjam_shortcode_scripts(){
  global $post;
  if( function_exists('has_shortcode') AND has_shortcode( $post->post_content, 'your-shortcode') ){
    wp_enqueue_script( 'whatever');
  }else{
    wp_enqueue_script( 'whatever');
  }
}
add_action( 'wp_enqueue_scripts', 'wpjam_shortcode_scripts');