diff --git a/application/controllers/amp.php b/application/controllers/amp.php
index 652e5f48..d84d0c0c 100644
--- a/application/controllers/amp.php
+++ b/application/controllers/amp.php
@@ -114,7 +114,8 @@ class Amp extends CI_Controller {
             $this->InfoMetas_model->update($ic_id, 'AMP_STATUS', $amp_status);
         }
 
-        echo json_encode(array('name' => 'ok', 'value' => $this->lang->line('form_info_success')));
+        $data[] = array('name' => 'ok', 'value' => $this->lang->line('form_info_success'));
+        echo json_encode($data);
     }
 
 }
diff --git a/application/third_party/train/controllers/search.php b/application/third_party/train/controllers/search.php
index ee023727..0e217f82 100644
--- a/application/third_party/train/controllers/search.php
+++ b/application/third_party/train/controllers/search.php
@@ -93,7 +93,7 @@ class search extends CI_Controller{
 			if($this->differ_time <= 5){
 				$cache_train_info = NULL;
 			}else{
-				$cache_train_info = $this->BIZ_train_model->get_train_info($fromStation,$toStation);
+				$cache_train_info = $this->BIZ_train_model->get_train_cache($fromStation,$toStation);
 			}
 			
 			//判断缓存是否为空
@@ -206,7 +206,7 @@ class search extends CI_Controller{
 					$pricestr = $seat_type.'"train_no":'.'"'.$value->train_no.'"';
 					//余票字符串
 					$this->can_buy_now = $value->can_buy_now;
-					$return_data->data->result[$i] = '|预定|'.$value->train_no.'|'.$value->train_code.'|'.$value->from_station_name.'|'.$value->to_station_name.'|'.$value->from_station_code.'|'.$value->to_station_code.'|'.$value->start_time.'|'.$value->arrive_time.'|'.$value->run_time.'|'.$value->can_buy_now.'||'.$value->train_start_date.'||||||||'.$this->ticket_exchange($value->gjrw_price,$value->gjrw_num).'|'.$this->ticket_exchange($value->qtxb_price,$value->qtxb_num).'|'.$this->ticket_exchange($value->rw_price,$value->rw_num).'|'.$this->ticket_exchange($value->rz_price,$value->rz_num).'|'.$this->ticket_exchange($value->tdz_price,$value->tdz_num).'|'.$this->ticket_exchange($value->wz_price,$value->wz_num).'||'.$this->ticket_exchange($value->yw_price,$value->yw_num).'|'.$this->ticket_exchange($value->yz_price,$value->yz_num).'|'.$this->ticket_exchange($value->edz_price,$value->edz_num).'|'.$this->ticket_exchange($value->ydz_price,$value->ydz_num).'|'.$this->ticket_exchange($value->swz_price,$value->swz_num).'|'.$this->ticket_exchange($value->dw_price,$value->dw_num).'||';
+					$return_data->data->result[$i] = '|预定|'.$value->train_no.'|'.$value->train_code.'|'.$value->from_station_name.'|'.$value->to_station_name.'|'.$value->from_station_code.'|'.$value->to_station_code.'|'.$value->start_time.'|'.$value->arrive_time.'|'.$value->run_time.'|'.$value->can_buy_now.'||'.$this->train_date.'||||||||'.$this->ticket_exchange($value->gjrw_price,$value->gjrw_num).'|'.$this->ticket_exchange($value->qtxb_price,$value->qtxb_num).'|'.$this->ticket_exchange($value->rw_price,$value->rw_num).'|'.$this->ticket_exchange($value->rz_price,$value->rz_num).'|'.$this->ticket_exchange($value->tdz_price,$value->tdz_num).'|'.$this->ticket_exchange($value->wz_price,$value->wz_num).'||'.$this->ticket_exchange($value->yw_price,$value->yw_num).'|'.$this->ticket_exchange($value->yz_price,$value->yz_num).'|'.$this->ticket_exchange($value->edz_price,$value->edz_num).'|'.$this->ticket_exchange($value->ydz_price,$value->ydz_num).'|'.$this->ticket_exchange($value->swz_price,$value->swz_num).'|'.$this->ticket_exchange($value->dw_price,$value->dw_num).'||';
 					$data = '{"validateMessagesShowId":"_validatorMessage","status":true,"httpstatus":200,"data":{'.$pricestr.'},"messages":[],"validateMessages":{}}';
 					$return_data->data->price[$i] = $data;
 					$i++;
diff --git a/application/third_party/train/models/BIZ_train_model.php b/application/third_party/train/models/BIZ_train_model.php
index ebad9cd0..3cebc984 100644
--- a/application/third_party/train/models/BIZ_train_model.php
+++ b/application/third_party/train/models/BIZ_train_model.php
@@ -8,7 +8,7 @@ class BIZ_train_model extends CI_Model {
 		$this->INFO = $this->load->database('INFO', TRUE);
     }
 	
-	//新增或更新价格
+	//新增或更新缓存
 	public function addOrUpdate($tpc_from_station,$tpc_to_station,$tpc_content){
 		$sql = "IF NOT EXISTS(
                         SELECT 1
@@ -49,7 +49,7 @@ class BIZ_train_model extends CI_Model {
 	
 	//获取缓存的火车信息
 	//如果读取到缓存是7天以前的数据就不返回任何数据，并且将其删除。
-	public function get_train_info($tpc_from_station,$tpc_to_station){
+	public function get_train_cache($tpc_from_station,$tpc_to_station){
 		$sql = "SELECT 
 					* 
 				FROM 
diff --git a/application/third_party/tuniu/controllers/tuniu_train.php b/application/third_party/tuniu/controllers/tuniu_train.php
index cf81e430..7a254903 100644
--- a/application/third_party/tuniu/controllers/tuniu_train.php
+++ b/application/third_party/tuniu/controllers/tuniu_train.php
@@ -40,123 +40,162 @@ class Tuniu_train extends CI_Controller{
 		if(!$date || !$fromStation || !$toStation){
 			exit('传参错误！');
 		}else{
+			//做超过预售期的处理查询
+			$isCache = false;
+			$iseven = false;
+			$now_time = time();
+			$differ = (strtotime($date) - $now_time) / 86400;
+			if($differ > 29){
+				$date = date('Y-m-d',strtotime('+7day'));
+				$iseven = true;
+			}
+			
+			//途牛报文拼接
 			$sign = $this->create_sign();
-		$url = TUNIU_URL.'/train/search';
-		$time = date('Y-m-d H:i:s',time());
-		$post_data = '{ 
-				"apiKey": "'.TUNIU_KEY.'", 
-				"sign": "'.$sign.'", 
-				"timestamp": "'.$time.'", 
-				"data": { "trainDate": "'.$date.'", "fromStation": "'.$fromStation.'", "toStation": "'.$toStation.'", "trainCode": "" } 
-				}';		
-		$back_data = post_tuniu($url,$post_data,$method = 'POST');
-		if(empty(json_decode($back_data)->data)){
-			log_message('error','tuniu:'.json_encode($post_data));
-		}
-		//print_r(json_decode($back_data));
+			$url = TUNIU_URL.'/train/search';
+			$time = date('Y-m-d H:i:s',time());
+			$post_data = '{ 
+					"apiKey": "'.TUNIU_KEY.'", 
+					"sign": "'.$sign.'", 
+					"timestamp": "'.$time.'", 
+					"data": { "trainDate": "'.$date.'", "fromStation": "'.$fromStation.'", "toStation": "'.$toStation.'", "trainCode": "" } 
+					}';		
+			$back_data = post_tuniu($url,$post_data,$method = 'POST');
 
-		$return_data = new stdClass();
-		$return_data->returnCode = json_decode($back_data)->returnCode;
-		//echo $return_data->returnCode;
-		$return_data->httpstatus = 200;
-		$return_data->data = new stdClass(); 
-		$return_data->data->result = array();
-		$return_data->data->map = new stdClass();
-		$obj = array();
-		$i = 0;
-		$pricestr = '';
-		if(!empty(json_decode($back_data)->data)){
-			foreach (json_decode($back_data)->data as $value){
-				$obj[$value->fromStationCode] = $value->fromStationName;
-				$obj[$value->toStationCode] = $value->toStationName;
-				$seat_type = '';
-				if(isset($value->gjrwXiaPrice)){
-					if(is_numeric($value->gjrwXiaPrice)){
-						$gjrwXiaPrice = $value->gjrwXiaPrice * 10;
-						$seat_type .= '"6":"'.$gjrwXiaPrice.'","A6":"¥'.$value->gjrwXiaPrice.'",'; 
+			//如果数据为空则调用缓存,有数据则进行数据存储
+			if(empty($back_data)){
+				log_message('error','tuniutrain 接口未响应|数据源:'.$fromStation.'|'.$toStation.'|'.$date);
+				$trainCache = $this->tuniuprice_model->get_train_cache($fromStation,$toStation);
+				$back_data = $trainCache->tpc_content;
+				$isCache = true;
+			}else{
+				if(empty(json_decode($back_data)->data)){
+					$error = json_decode($back_data);
+					$trainCache = $this->tuniuprice_model->get_train_cache($fromStation,$toStation);
+					if(!empty($trainCache)){
+						$back_data = $trainCache->tpc_content;
+						$isCache = true;
+						log_message('error','tuniutrain 查询出错|'.$error->errorMsg);
+					}else{
+						$back_data = null;
+						log_message('error','tuniutrain 缓存为空|'.$fromStation.'|'.$toStation.'|'.$date);
 					}
+					
+				}else{
+					$this->tuniuprice_model->addOrUpdate($fromStation,$toStation,$back_data);
 				}
-				if(isset($value->qtxbPrice)){
-					if(is_numeric($value->qtxbPrice)){
-						$seat_type .= '"H":"¥'.$value->qtxbPrice.'",';
+			}
+
+			//途牛数据格式转换
+			$return_data = new stdClass();
+			if(empty($back_data)){
+				$return_data->returnCode = '404';
+			}else{
+				$return_data->returnCode = json_decode($back_data)->returnCode;
+			}
+			
+			$return_data->httpstatus = 200;
+			$return_data->data = new stdClass(); 
+			$return_data->data->seven = $iseven;
+			$return_data->data->cache = $isCache;
+			$return_data->data->result = array();
+			$return_data->data->map = new stdClass();
+			
+			$obj = array();
+			$i = 0;
+			$pricestr = '';
+			if(!empty(json_decode($back_data)->data)){
+				foreach (json_decode($back_data)->data as $value){
+					$obj[$value->fromStationCode] = $value->fromStationName;
+					$obj[$value->toStationCode] = $value->toStationName;
+					$seat_type = '';
+					if(isset($value->gjrwXiaPrice)){
+						if(is_numeric($value->gjrwXiaPrice)){
+							$gjrwXiaPrice = $value->gjrwXiaPrice * 10;
+							$seat_type .= '"6":"'.$gjrwXiaPrice.'","A6":"¥'.$value->gjrwXiaPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->rwPrice)){
-					if(is_numeric($value->rwPrice)){
-						$rwPrice = $value->rwPrice * 10;
-						$seat_type .= '"4":"'.$rwPrice.'","A4":"¥'.$value->rwPrice.'",'; 
+					if(isset($value->qtxbPrice)){
+						if(is_numeric($value->qtxbPrice)){
+							$seat_type .= '"H":"¥'.$value->qtxbPrice.'",';
+						}
 					}
-				}
-				if(isset($value->rzPrice)){
-					if(is_numeric($value->rzPrice)){
-						$rzPrice = $value->rzPrice * 10;
-						$seat_type .= '"2":"'.$rzPrice.'","A2":"¥'.$value->rzPrice.'",'; 
+					if(isset($value->rwPrice)){
+						if(is_numeric($value->rwPrice)){
+							$rwPrice = $value->rwPrice * 10;
+							$seat_type .= '"4":"'.$rwPrice.'","A4":"¥'.$value->rwPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->tdzPrice)){
-					if(is_numeric($value->tdzPrice)){
-						$seat_type .= '"P":"¥'.$value->tdzPrice.'",';
+					if(isset($value->rzPrice)){
+						if(is_numeric($value->rzPrice)){
+							$rzPrice = $value->rzPrice * 10;
+							$seat_type .= '"2":"'.$rzPrice.'","A2":"¥'.$value->rzPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->wzPrice)){
-					if(is_numeric($value->wzPrice)){
-						$wzPrice = $value->wzPrice * 10;
-						$seat_type .= '"WZ":"¥'.$value->wzPrice.'",'; 
+					if(isset($value->tdzPrice)){
+						if(is_numeric($value->tdzPrice)){
+							$seat_type .= '"P":"¥'.$value->tdzPrice.'",';
+						}
 					}
-				}
-				if(isset($value->ywPrice)){
-					if(is_numeric($value->ywPrice)){
-						$ywPrice = $value->ywPrice * 10;
-						$seat_type .= '"3":"'.$ywPrice.'","A3":"¥'.$value->ywPrice.'",'; 
+					if(isset($value->wzPrice)){
+						if(is_numeric($value->wzPrice)){
+							$wzPrice = $value->wzPrice * 10;
+							$seat_type .= '"WZ":"¥'.$value->wzPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->yzPrice)){
-					if(is_numeric($value->yzPrice)){
-						$yzPrice = $value->yzPrice * 10;
-						$seat_type .= '"1":"'.$yzPrice.'","A1":"¥'.$value->yzPrice.'",'; 
+					if(isset($value->ywPrice)){
+						if(is_numeric($value->ywPrice)){
+							$ywPrice = $value->ywPrice * 10;
+							$seat_type .= '"3":"'.$ywPrice.'","A3":"¥'.$value->ywPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->edzPrice)){
-					if(is_numeric($value->edzPrice)){
-						$seat_type .= '"O":"¥'.$value->edzPrice.'",'; 
+					if(isset($value->yzPrice)){
+						if(is_numeric($value->yzPrice)){
+							$yzPrice = $value->yzPrice * 10;
+							$seat_type .= '"1":"'.$yzPrice.'","A1":"¥'.$value->yzPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->ydzPrice)){
-					if(is_numeric($value->ydzPrice)){
-						$seat_type .= '"M":"¥'.$value->ydzPrice.'",'; 
+					if(isset($value->edzPrice)){
+						if(is_numeric($value->edzPrice)){
+							$seat_type .= '"O":"¥'.$value->edzPrice.'",'; 
+						}
 					}
-				}
-				if(isset($value->swzPrice)){
-					if(is_numeric($value->swzPrice)){
-						$swzPrice = $value->swzPrice * 10;
-						$seat_type .= '"9":"'.$swzPrice.'","A9":"¥'.$value->swzPrice.'",'; 
+					if(isset($value->ydzPrice)){
+						if(is_numeric($value->ydzPrice)){
+							$seat_type .= '"M":"¥'.$value->ydzPrice.'",'; 
+						}
 					}
+					if(isset($value->swzPrice)){
+						if(is_numeric($value->swzPrice)){
+							$swzPrice = $value->swzPrice * 10;
+							$seat_type .= '"9":"'.$swzPrice.'","A9":"¥'.$value->swzPrice.'",'; 
+						}
+					}
+					$pricestr = $seat_type.'"train_no":'.'"'.$value->trainNo.'"';
+					
+					//对返回的数据进行容错处理
+					$value->gjrwNum = isset($value->gjrwNum) ? ticket_exchange($value->gjrwNum,$iseven) : '';
+					$value->rwNum = isset($value->rwNum) ? ticket_exchange($value->rwNum,$iseven) : '';
+					$value->rzNum = isset($value->rzNum)?ticket_exchange($value->rzNum,$iseven) : '';
+					$value->tdzNum = isset($value->tdzNum)?ticket_exchange($value->tdzNum,$iseven) : '';
+					$value->wzNum = isset($value->wzNum)?ticket_exchange($value->wzNum,$iseven) : '';
+					$value->ywNum = isset($value->ywNum)?ticket_exchange($value->ywNum,$iseven) : '';
+					$value->yzNum = isset($value->yzNum)?ticket_exchange($value->yzNum,$iseven) : '';
+					$value->edzNum = isset($value->edzNum)?ticket_exchange($value->edzNum,$iseven) : '';
+					$value->ydzNum = isset($value->ydzNum)?ticket_exchange($value->ydzNum,$iseven) : '';
+					$value->swzNum = isset($value->swzNum)?ticket_exchange($value->swzNum,$iseven) : '';
+					$value->dwNum = isset($value->dwNum)?ticket_exchange($value->dwNum,$iseven) : '';
+					$value->runTime = isset($value->runTime)?$value->runTime : '';
+					
+					//余票字符串
+					$return_data->data->result[$i] = '|预定|'.$value->trainNo.'|'.$value->trainCode.'|'.$value->fromStationName.'|'.$value->toStationName.'|'.$value->fromStationCode.'|'.$value->toStationCode.'|'.$value->startTime.'|'.$value->arriveTime.'|'.$value->runTime.'|'.$value->canBuyNow.'||'.date('Ymd',strtotime($value->trainStartDate)).'||||||||'.$value->gjrwNum.'||'.$value->rwNum.'|'.$value->rzNum.'|'.$value->tdzNum.'|'.$value->wzNum.'||'.$value->ywNum.'|'.$value->yzNum.'|'.$value->edzNum.'|'.$value->ydzNum.'|'.$value->swzNum.'|'.$value->dwNum.'||';
+					$data = '{"validateMessagesShowId":"_validatorMessage","status":true,"httpstatus":200,"data":{'.$pricestr.'},"messages":[],"validateMessages":{}}';
+					$return_data->data->price[$i] = $data;
+					$i++;
 				}
-				$pricestr = $seat_type.'"train_no":'.'"'.$value->trainNo.'"';
-				
-				//对余票数进行验证
-				$value->gjrwNum = isset($value->gjrwNum) ? ticket_exchange($value->gjrwNum) : '';
-				$value->rwNum = isset($value->rwNum) ? ticket_exchange($value->rwNum) : '';
-				$value->rzNum = isset($value->rzNum)?ticket_exchange($value->rzNum) : '';
-				$value->tdzNum = isset($value->tdzNum)?ticket_exchange($value->tdzNum) : '';
-				$value->wzNum = isset($value->wzNum)?ticket_exchange($value->wzNum) : '';
-				$value->ywNum = isset($value->ywNum)?ticket_exchange($value->ywNum) : '';
-				$value->yzNum = isset($value->yzNum)?ticket_exchange($value->yzNum) : '';
-				$value->edzNum = isset($value->edzNum)?ticket_exchange($value->edzNum) : '';
-				$value->ydzNum = isset($value->ydzNum)?ticket_exchange($value->ydzNum) : '';
-				$value->swzNum = isset($value->swzNum)?ticket_exchange($value->swzNum) : '';
-				$value->dwNum = isset($value->dwNum)?ticket_exchange($value->dwNum) : '';
-				
-				//余票字符串
-				$return_data->data->result[$i] = '|预定|'.$value->trainNo.'|'.$value->trainCode.'|'.$value->fromStationName.'|'.$value->toStationName.'|'.$value->fromStationCode.'|'.$value->toStationCode.'|'.$value->startTime.'|'.$value->arriveTime.'|'.$value->runTime.'|'.$value->canBuyNow.'||'.date('Ymd',strtotime($value->trainStartDate)).'||||||||'.$value->gjrwNum.'||'.$value->rwNum.'|'.$value->rzNum.'|'.$value->tdzNum.'|'.$value->wzNum.'||'.$value->ywNum.'|'.$value->yzNum.'|'.$value->edzNum.'|'.$value->ydzNum.'|'.$value->swzNum.'|'.$value->dwNum.'||';
-				$data = '{"validateMessagesShowId":"_validatorMessage","status":true,"httpstatus":200,"data":{'.$pricestr.'},"messages":[],"validateMessages":{}}';
-				$return_data->data->price[$i] = $data;
-				$this->tuniuprice_model->addOrUpdate($value->trainNo,$value->trainCode,$value->fromStationCode,$value->toStationCode,json_encode($data));
-				$i++;
 			}
-		}
-		$return_data->data->map = (object)$obj;
-		print_r(json_encode($return_data));
+			$return_data->data->map = (object)$obj;
+			print_r(json_encode($return_data));
 		}
     }
 	
diff --git a/application/third_party/tuniu/helpers/tuniu_helper.php b/application/third_party/tuniu/helpers/tuniu_helper.php
index 1b5e1fa9..822429e6 100644
--- a/application/third_party/tuniu/helpers/tuniu_helper.php
+++ b/application/third_party/tuniu/helpers/tuniu_helper.php
@@ -14,16 +14,20 @@
 	}
 	
 	//余票转换
-	function ticket_exchange($num){
-		if(is_numeric($num)){
-			if($num == 0){
-				return '无';
-			}elseif($num == 99){
-				return '有';
-			}else{
-				return $num;
-			}
-		}	
+	function ticket_exchange($num,$iseven){
+		if($iseven){
+			return '有';
+		}else{
+			if(is_numeric($num)){
+				if($num == 0){
+					return '无';
+				}elseif($num >= 99){
+					return '有';
+				}else{
+					return $num;
+				}
+			}	
+		}
 	}
 	
 	//发送请求函数
diff --git a/application/third_party/tuniu/models/tuniuprice_model.php b/application/third_party/tuniu/models/tuniuprice_model.php
index c738b903..404ad70e 100644
--- a/application/third_party/tuniu/models/tuniuprice_model.php
+++ b/application/third_party/tuniu/models/tuniuprice_model.php
@@ -6,47 +6,60 @@ class tuniuprice_model extends CI_Model {
         $this->INFO = $this->load->database('INFO', TRUE);
     }
 	
-	//��������¼۸�
-	public function addOrUpdate($TPL_Train_No,$TPL_Train_Code,$TPL_From_Station_Code,$TPL_To_Station_Code,$TPL_Price){
+	//��������»���
+	public function addOrUpdate($tpc_from_station,$tpc_to_station,$tpc_content){
 		$sql = "IF NOT EXISTS(
                         SELECT 1
-                        FROM   TrainPriceList
-                        WHERE  TPL_Train_Code = '$TPL_Train_Code'
-                               AND TPL_From_Station_Code = '$TPL_From_Station_Code'
-                               AND TPL_To_Station_Code = '$TPL_To_Station_Code'
+                        FROM   TrainPriceCache
+                        WHERE 
+								tpc_from_station = '$tpc_from_station'
+                               AND tpc_to_station = '$tpc_to_station'
                    )  BEGIN
-                                INSERT INTO TrainPriceList
+                                INSERT INTO TrainPriceCache
                                   (
-                                   TPL_Train_No,
-								   TPL_Train_Code,
-                                   TPL_From_Station_Code,
-                                   TPL_To_Station_Code,
-                                   TPL_Price,
-                                   TPL_Datetime,
-								   TPL_Source
+                                   tpc_from_station,
+                                   tpc_to_station,
+                                   tpc_content,
+                                   tpc_datetime,
+								   tpc_source
                                   )
                                 VALUES
                                   (
-                                    '$TPL_Train_No','$TPL_Train_Code','$TPL_From_Station_Code','$TPL_To_Station_Code','$TPL_Price',GETDATE(),'tuniu'
+                                   '$tpc_from_station','$tpc_to_station','$tpc_content',GETDATE(),'tuniu'
                                   )   
 								END  
 				ELSE
 					BEGIN
-						UPDATE TrainPriceList
-						SET    
-							   TPL_Train_No			   = '$TPL_Train_No',
-							   TPL_Price               = '$TPL_Price',
-							   TPL_Datetime            = GETDATE(),
-							   TPL_Source			   = 'tuniu'
-						WHERE  TPL_Train_Code            = '$TPL_Train_Code'
-							 AND  TPL_From_Station_Code     = '$TPL_From_Station_Code'
-							AND   TPL_To_Station_Code       = '$TPL_To_Station_Code'
+						UPDATE TrainPriceCache
+						SET    tpc_from_station		   = '$tpc_from_station',
+							   tpc_to_station          = '$tpc_to_station',
+							   tpc_content			   = '$tpc_content',
+							   tpc_datetime            = GETDATE(),
+							   tpc_source			   = 'tuniu'
+						WHERE  
+								tpc_from_station     = '$tpc_from_station'
+							AND   tpc_to_station       = '$tpc_to_station'
 					END				
 								";
 		$query = $this->INFO->query($sql);
         return $query;				
 	}
 	
+	//��ȡ����Ļ���Ϣ
+	//�����ȡ��������7����ǰ�����ݾͲ������κ����ݣ����ҽ���ɾ����
+	public function get_train_cache($tpc_from_station,$tpc_to_station){
+		$sql = "SELECT 
+						* 
+				FROM 
+					TrainPriceCache 
+				WHERE 
+					tpc_from_station = '$tpc_from_station'
+				AND	
+					tpc_to_station = '$tpc_to_station'";
+		$query = $this->INFO->query($sql);
+		return $query->row();
+	}
+	
 	//��ȡ�۸�
 	public function get_price($fromStationCode,$toStationCode,$trainCode){
 		$sql = "SELECT