diff --git a/modules/items/modelitems.go b/modules/items/modelitems.go
index bce48794e..752cc353a 100644
--- a/modules/items/modelitems.go
+++ b/modules/items/modelitems.go
@@ -57,14 +57,6 @@ func (this *ModelItemsComp) AddUserPack(uId string, itmes ...*pb.DB_UserItemData
 	return
 }
 
-//更新用户的背包信息
-func (this *ModelItemsComp) DelUserPack(uId string, ids ...string) (err error) {
-	if err = this.DelListlds(uId, ids...); err != nil {
-		this.module.Errorf("err:%v", err)
-	}
-	return
-}
-
 //更新用户的背包信息
 func (this *ModelItemsComp) UpdateUserPack(uid string, itmes ...*pb.DB_UserItemData) (err error) {
 	for _, v := range itmes {
@@ -239,7 +231,12 @@ func (this *ModelItemsComp) AddItemToUserPackByGrid(uId string, gridid string, a
 			return
 		} else {
 			itme.Amount = uint32(num)
-			this.UpdateUserPack(uId, itme)
+			if itme.Amount > 0 {
+				this.UpdateUserPack(uId, itme)
+			} else {
+				this.DeleteUserPack(uId, itme)
+			}
+
 			change = append(change, itme)
 		}
 	}