public function get_mustread($cityid, $html_id)
{
APF::get_instance()->benchmark_begin(__CLASS__ . " get_mustread ");
$key = Util_MemCacheKey::get_myanjuke_mustread($cityid);
$memcache = APF_Cache_Factory::get_instance()->get_memcache();
$list = $memcache->get($key);
if (!$list) {
$list = parent::get_html_content($cityid, $html_id, $key);
$memcache->add($key, $list, 0, Util_MemCacheTime::get_myanjuke_mustread());
}
APF::get_instance()->benchmark_end(__CLASS__ . " get_mustread ");
return $list;
}