$orders=$orderDao->getList($where,"order_id as orderId,order_sn as orderSn,delete_state as deleteState,order_state as orderState,add_time as addTime,store_name as storeName,buyer_id as buyerId,store_id as storeId",$this->taskIndex,$this->taskSize,array('add_time'=>'desc'));
if(!empty($orders['list'])){
$orders=$orderDao->getList($where,"order_id as orderId,order_sn as orderSn,delete_state as deleteState,order_state as orderState,add_time as addTime,store_name as storeName,buyer_id as buyerId,store_id as storeId",$this->taskIndex,$this->taskSize,array('add_time'=>'desc'));