diff --git a/doc/Bigwheel.py b/doc/Bigwheel.py
index f94dbfc7..8acb8529 100644
--- a/doc/Bigwheel.py
+++ b/doc/Bigwheel.py
@@ -26,6 +26,7 @@ class Bigwheel(object):
                 'url': 'webapp/index.php?c=Bigwheel&a=drawS',
                 'params': [
                     _common.ReqHead(),
+                    ['type', 0, '0:双勾选 1:第1档 2:第2档']
                 ],
                 'response': [
                     _common.RspHead(),
diff --git a/webapp/controller/BigwheelController.class.php b/webapp/controller/BigwheelController.class.php
index 1598562f..37a06085 100644
--- a/webapp/controller/BigwheelController.class.php
+++ b/webapp/controller/BigwheelController.class.php
@@ -19,7 +19,8 @@ use services\LogService;
   "grid_state": 0,
   "item_id": 123,
   "item_num": 314,
-  "buy_price": 314
+  "buy_price": 314,
+  "draw_times": 1,
   }
   }
  */
@@ -32,8 +33,13 @@ class BigwheelController extends BaseAuthedController {
     {
         $key = $this->getMidDataKey();
         $data = $this->getAndCreateData($key);
+        $priceInfo = $this->getPriceInfo($data['drawed_times']);
+        if (empty($priceInfo)) {
+            myself()->_rspErr(500, 'server internal error');
+            return;
+        }
         $info = array();
-        $this->fillInfo($info, $data);
+        $this->fillInfo($info, $data, $priceInfo);
         myself()->_rspData(array(
             'info' => $info
         ));
@@ -41,8 +47,43 @@ class BigwheelController extends BaseAuthedController {
 
     public function drawS()
     {
+        $drawType = getReqVal('type', 0);
+        if (!($drawType == 0 || $drawType == 1 || $drawType == 2)) {
+            myself()->_rspErr(2, 'type param error');
+            return;
+        }
         $key = $this->getMidDataKey();
         $data = $this->getAndCreateData($key);
+        if ($data['drawed_times'] >= self::MAX_DRAW_TIMES) {
+            myself()->_rspErr(1, 'The maximum number of lucky draws has been reached');
+            return;
+        }
+        $priceInfo = $this->getPriceInfo($data['drawed_times']);
+        if (empty($priceInfo)) {
+            myself()->_rspErr(500, 'server internal error');
+            return;
+        }
+        if ($priceInfo['cost_item_id'] != V_ITEM_DIAMOND) {
+            myself()->_rspErr(500, 'server internal error');
+            return;
+        }
+        $costItemNum = 0;
+        if ($drawType == 0) {
+            $costItemNum = $priceInfo['price_double'] * $priceInfo['discount_double'];
+            if (empty($costItemNum)) {
+                myself()->_rspErr(3, 'config error');
+                return;
+            }
+        } else if ($drawType == 1 || $drawType == 2) {
+            $costItemNum = $priceInfo['price_single'] * $priceInfo['discount_single'];
+            if (empty($costItemNum)) {
+                myself()->_rspErr(3, 'config error');
+                return;
+            }
+        } else {
+            myself()->_rspErr(2, 'type param error');
+            return;
+        }
     }
 
     public function buyS()
@@ -71,13 +112,13 @@ class BigwheelController extends BaseAuthedController {
         return $data;
     }
 
-    private function fillInfo(&$info, &$data)
+    private function fillInfo(&$info, &$data, $priceInfo)
     {
         $info = array(
             'drawed_times' => $data['drawed_times'],
             'total_times' => self::MAX_DRAW_TIMES,
-            'single_cost' => 0,
-            'double_cost' => 0,
+            'single_cost' => $priceInfo['price_single'] * $priceInfo['discount_single'],
+            'double_cost' => $priceInfo['price_double'] * $priceInfo['discount_double'],
             'items1' => array(),
             'items2' => array(),
         );
@@ -119,4 +160,37 @@ class BigwheelController extends BaseAuthedController {
         }
     }
 
+    private function getPriceInfo($drawedTimes)
+    {
+        $costItem = mt\Parameter::getVal('gacha_cost_item', 0);
+        $gachaPriceSingles = mt\Parameter::getListValue('gacha_price_single');
+        $gachaDiscountSingles = mt\Parameter::getListValue('gacha_discount_single');
+        $gachaPriceDoubles = mt\Parameter::getListValue('gacha_price_double');
+        $gachaDiscountDoubles = mt\Parameter::getListValue('gacha_discount_double');
+        $gachaPriceBuys = mt\Parameter::getListValue('gacha_price_buy');
+        $gachaDiscountBuys = mt\Parameter::getListValue('gacha_discount_buy');
+        if (count($gachaPriceSingles) != count($gachaDiscountSingles) &&
+            count($gachaPriceDoubles) != count($gachaDiscountDoubles) &&
+            count($gachaPriceBuys) != count($gachaDiscountBuys) &&
+            count($gachaDiscountBuys) != self::MAX_DRAW_TIMES) {
+            return null;
+        }
+        if ($drawedTimes < 0) {
+            return null;
+        }
+        if ($drawedTimes > self::MAX_DRAW_TIMES) {
+            $drawedTimes = self::MAX_DRAW_TIMES - 1;
+        }
+        $priceInfo = array(
+            'cost_item_id' => $costItem,
+            'price_single' => $gachaPriceSingles[$drawedTimes],
+            'discount_single' => $gachaDiscountSingles[$drawedTimes],
+            'price_double' => $gachaPriceDoubles[$drawedTimes],
+            'discount_double' => $gachaDiscountSingles[$drawedTimes],
+            'price_buy' => $gachaPriceBuys[$drawedTimes],
+            'discount_buy' => $gachaDiscountBuys[$drawedTimes],
+        );
+        return $priceInfo;
+    }
+
 }