diff --git a/webapp/bootstrap/init.php b/webapp/bootstrap/init.php
index d734dc0..97981e3 100644
--- a/webapp/bootstrap/init.php
+++ b/webapp/bootstrap/init.php
@@ -100,6 +100,7 @@ define('CLAN_VIDEO_DIAMOND', 165);     //观看视频，领取的钻石数量
 define('CLAN_DIAMOND', 164);           //创建战队需要的钻石数量
 define('OPENING_SPEAR', 154);          //新玩家奖励第一把武器
 define('OPENING_SPEAR2', 178);         //新玩家奖励第二把武器
+define('LOTTERY_COST', 187);           //每日抽奖钻石消耗
 
 require 'config_loader.php';
 
diff --git a/webapp/controller/ActivityController.class.php b/webapp/controller/ActivityController.class.php
index 64dc75c..89a18de 100644
--- a/webapp/controller/ActivityController.class.php
+++ b/webapp/controller/ActivityController.class.php
@@ -189,10 +189,12 @@ class ActivityController{
         //刷新次数
         $p_free = $this->getParameter(FREELOTTERY_TIME);
         $p_video = $this->getParameter(VIDEOLOTTERY_TIME);
+        $costlist = $this->getParameter(LOTTERY_COST);
         $free_times = $p_free['value'];
         $video_times = $p_video['value'];
         $flush_flag = 0;
         $now_days = 1;
+        $cur_cost = -1;
         $row = $conn->execQueryOne('SELECT free_times, video_times, now_days, modify_time FROM activity WHERE accountid=:accountid;',
                                    array(
                                        ':accountid' => $account_id
@@ -234,6 +236,17 @@ class ActivityController{
                 $video_times = $p_video['value'];
             }
         }
+
+        $coststrs = explode("|", $costlist['value']);
+        $costlen = sizeof($coststrs);
+        $left = $free_times + $video_times;
+        if ($left > 0) {
+            if ($costlen >= $left) {
+                $cur_cost = $coststrs[$costlen - $left];
+            } else {
+                $cur_cost = $coststrs[$costlen - 1];
+            }
+        }
          //道具物品
         $user_db_str = $r->get($draw_uuid);
         if (empty($user_db_str)) {
@@ -292,6 +305,7 @@ class ActivityController{
             'draw_uuid' => $draw_uuid,
             'free_times' => $free_times,
             'video_times' => $video_times,
+            'cur_price' => $cur_cost,
             'item_list' => $draw_list,
         ));
     }
@@ -318,6 +332,18 @@ class ActivityController{
             phpcommon\sendError(ERR_USER_BASE + 2, '没有这个玩家');
             return;
         }
+        
+        $p_free = $this->getParameter(FREELOTTERY_TIME);
+        $p_video = $this->getParameter(VIDEOLOTTERY_TIME);
+        $costlist = $this->getParameter(LOTTERY_COST);
+        $free_times = $p_free['value'];
+        $video_times = $p_video['value'];
+        $left = $free_times + $video_times - $row['free_times'] - $row['video_times'];
+        if ($left < 1) {
+            phpcommon\sendError(ERR_USER_BASE + 2, '没有这个玩家');
+            return;
+        }
+
         //随机确认奖励
         $weight_sum = 0;
         $g_conf_lot_cluster = require('../res/lottery@lottery.php');
@@ -407,6 +433,47 @@ class ActivityController{
             phpcommon\sendError(ERR_USER_BASE + 3, '没有这个物品');
             return;
         }
+        //扣钻石
+        $cur_cost = 0;
+        $coststrs = explode("|", $costlist['value']);
+        $costlen = sizeof($coststrs);        
+        if ($costlen >= $left) {
+            $cur_cost = intval($coststrs[$costlen - $left]);
+        } else if ($costlen > 0) {
+            $cur_cost = intval($coststrs[$costlen - 1]);
+        }
+
+        if ($cur_cost > 0) {
+            $row = $conn->execQueryOne(
+                'SELECT diamond_num, first_gift, free_coin, free_diamond FROM user WHERE accountid=:accountid;',
+                array(
+                    ':accountid' => $account_id
+                )
+            );
+            if (!$row) {
+                phpcommon\sendError(ERR_USER_BASE + 1, '没有这个玩家');
+                return;
+            }
+            //扣除钻石
+            if ($row['diamond_num'] < $cur_cost) {
+                phpcommon\sendError(ERR_USER_BASE + 3, '钻石不足');
+                return;
+            }
+            $ret = $conn->execScript(
+                'UPDATE user SET diamond_num=:diamond_num, modify_time=:modify_time ' .
+                    ' WHERE accountid=:accountid;',
+                array(
+                    ':accountid' => $account_id,
+                    ':diamond_num' => $row['diamond_num'] - $cur_cost,
+                    ':modify_time' => time()
+                )
+            );
+            if (!$ret) {
+                die();
+                return;
+            }
+        }
+
         //增加奖励
         $addreward = new classes\AddReward();
         $all_item_list = $addreward->addReward($item_id, $item_num, $account_id, $time, 0);