加注释

AppStart/Helper/StatService.cs

@@ -765,6 +765,7 @@ namespace MySystem
         public void doActiveReward(WebCMSEntities db, PosMerchantInfo merchant, PosMachinesTwo pos, int GetUserId, string ParentNav, int TopUserId, decimal ActPrize, int ChangeType = 0, int ActType = 0)
         {
             string MerNo = merchant.KqMerNo;
+            //判断商户号是否为空，避免下次再有空商户的情况，导致奖励不发放
             if(string.IsNullOrEmpty(MerNo))
             {
                 MerNo = "n" + DateTime.Now.ToString("yyyyMMddHHmmssfff");