/**
  * 获取数据存放表名
  *
  * @param Date $date 日期
  * @return String 表名
  */
 public static function getSaveTableName($date)
 {
     try {
         $result = StocksIndexAction::getTableNameByDate($date);
         if ($result) {
             return $result;
         } else {
             //create new table
             $tablename = StocksIndexAction::createNewTable();
             //create table index
             if ($tablename) {
                 StocksIndexAction::createTableIndex($date, $tablename);
             }
             return $tablename;
         }
     } catch (Exception $e) {
         throw new Exception($e);
     }
 }