Update enter_room.go

domain/cache/group_c/enter_room.go

@@ -40,7 +40,7 @@ func GetLastRoomVisitors(model *domain.Model, imGroupId string) (userIds []uint6
 	for _, u := range res {
 		uid, _ := strconv.ParseUint(u, 10, 64)
 		if uid > 0 {
-			userIds = append(userIds)
+			userIds = append(userIds, uid)
 		}
 	}
 	return