要做到这一点，您确实需要在functions.php 你的主题。您可以使用admin_notices 要向此特定页面添加注释，请执行以下操作：

add_action( \'admin_notices\', \'wpse332074_donotedit\' );
function wpse332074_donotedit () {
 $screen = get_current_screen();
 if ($screen->post_type == \'page\') {
   $variable = $_GET[\'post\'];
   if ($variable == id_of_page_as_integer) { 
     $class = \'notice notice-error\';
     $message = __( \'Do not edit this page!\', \'your-text-domain\' );
     echo \'<div class="\' . $class . \'"><p>\' . $message . \'</p></div>\';
     }
   }
 }

add_filter( \'page_row_actions\', \'wpse332074_disable_edit\', 10, 2 );
function wpse332074_disable_edit ($actions, $post) {
  if ( $post->ID == id_of_page_as_integer ) {
    unset( $actions[\'edit\'] );
    unset( $actions[\'inline hide-if-no-js\'] );
    unset( $actions[\'trash\'] );
    }
  return $actions;
  }