实现所需功能的最佳方法是使用post\\u元/自定义字段。

add_shortcode (\'cities\', \'show_cities\');
function show_cities(){
   /* 
      Create a custom field \'city\' to save city name in page editor
   */

   $city = get_post_meta( get_the_id(), \'city\', true );

   return $city;
}

add_shortcode (\'cities\', \'show_cities\');
function show_cities(){
   /* 
      Create an array using Page_id as index, e.g.
      $cities [ \'page_id\' ] = "City Name";
   */

   $cities [ 7 ] = "New York";
   $cities [ 10 ] = "Alabama";

   return $cities [ get_the_id() ];
}