增加时间排序

app/Service/CouponRebate.php

@@ -35,6 +35,7 @@ class CouponRebate implements CouponRebateInterface
                 ['end_time','>',$time],
             ])
             ->whereRaw('inventory > inventory_use')
+            ->orderBy('addtime','desc')
             ->get();
         return $res;
     }