diff --git a/modules/items/modelitems.go b/modules/items/modelitems.go
index bd34c0153..a8e008697 100644
--- a/modules/items/modelitems.go
+++ b/modules/items/modelitems.go
@@ -1,6 +1,7 @@
 package items
 
 import (
+	"errors"
 	"fmt"
 	"go_dreamfactory/lego/core"
 	"go_dreamfactory/modules"
@@ -66,9 +67,14 @@ func (this *ModelItemsComp) DelUserPack(uId string, ids ...string) (err error) {
 }
 
 //更新用户的背包信息
-func (this *ModelItemsComp) UpdateUserPack(uId string, itmes ...*pb.DB_UserItemData) (err error) {
+func (this *ModelItemsComp) UpdateUserPack(uid string, itmes ...*pb.DB_UserItemData) (err error) {
+	if len(uid) == 0 {
+		err = errors.New("UpdateUserPack uid is nil")
+		this.module.Panicf("err:%v", err)
+		return
+	}
 	for _, v := range itmes {
-		this.ChangeList(uId, v.GridId, map[string]interface{}{
+		this.ChangeList(uid, v.GridId, map[string]interface{}{
 			"amount": v.Amount,
 		})
 	}