/**
* 清除缓存，按需重载
* @param string $cachename
* @return boolean
*/
protected function removeCache($cachename)
{
return Cache::removeCache($cachename);
}
/**
* 清除缓存，按需重载
* @param string $cachename
* @return boolean
*/
protected function removeCache($cachename)
{
return Cache::removeCache($cachename);
}