From fb7e3566ea965bfa244a9ed4775f61b9902a8635 Mon Sep 17 00:00:00 2001
From: gazebo <gazeboxu@gmail.com>
Date: Fri, 13 Dec 2019 20:00:53 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DCalUpcCheckSum=E7=BB=93?=
 =?UTF-8?q?=E6=9E=9C=E4=B8=BA10=E7=9A=84bug?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 business/jxutils/jxutils.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/business/jxutils/jxutils.go b/business/jxutils/jxutils.go
index 65f23bdc7..02d8816ae 100644
--- a/business/jxutils/jxutils.go
+++ b/business/jxutils/jxutils.go
@@ -417,7 +417,7 @@ func CalUpcCheckSum(upc12 int64) (checkSum int) {
 		sum[i%2] += int((upc12 / base) % 10)
 	}
 	sum[0] *= 3
-	return (10 - (sum[0]+sum[1])%10)
+	return (10 - (sum[0]+sum[1])%10) % 10
 }
 
 func IsUpcValid(upc string) bool {