diff --git a/pages/cart/cart/cart.js b/pages/cart/cart/cart.js
index 6c8fffa..37a3917 100644
--- a/pages/cart/cart/cart.js
+++ b/pages/cart/cart/cart.js
@@ -797,6 +797,30 @@ Page({
                 continue;
               }
 
+              //把活动写入
+              item.prom=prom;
+
+              //判断团购的限购
+              if (item.goods_num + promgoodsbuynum > prom.buy_limit && prom.buy_limit > 0) {
+                var cbuy = prom.buy_limit - promgoodsbuynum;
+                if (cbuy <= 0) {
+                  // var url = '/api/weshop/cart/del/' + oo.stoid + '/' + item.id;
+                  // a.delete(url, {});
+                  th.disInvalid(item, 2);
+                  continue;
+                }
+                //-- 购物车更新 --
+                var updata1 = {
+                  id: item.id,
+                  goods_num: cbuy,
+                  store_id: os.stoid,
+                  user_id: getApp().globalData.userInfo.user_id
+                };
+                getApp().request.put("/api/weshop/cart/update", {
+                  data: updata1,
+                })
+                item.goods_num = cbuy;
+              }
 
             }