diff --git a/app/Controller/CouponController.php b/app/Controller/CouponController.php
index 59d0ec7..c72dc16 100644
--- a/app/Controller/CouponController.php
+++ b/app/Controller/CouponController.php
@@ -79,7 +79,7 @@ class CouponController extends BaseController
                     'receive_type'          => $receiveType
                 ]
             )->first();
-            //TODO 会有超发情况
+
             $cr                        = new CouponRec;
             $cr->user_id               = $userId;
             $cr->system_coupon_user_id = $cp->id;
@@ -90,13 +90,20 @@ class CouponController extends BaseController
             $cr->status                = 0;
             $cr->update_time           = $now;
             $cr->receive_type          = $receiveType;
-            if ($test&&($cp->id%2)) {
+            if ($test && ($cp->id % 2)) {
                 $fail[] = $cp;
             } else {
-                if ($cr->save()) {
-                    $success[] = $cp;
-                } else {
+                //TODO 会有超发情况
+                //如果优惠卷库存小于等于已领取的数量, 则返回领取失败的优惠券
+                if ($cp->inventory<=$cp->inventory_use||$cp->inventory<=($cp->inventory_use+$cr->number)){
                     $fail[] = $cp;
+                }else{
+                    $cp->inventory_use += $cr->number;//记录已领取的数量
+                    if ($cr->save()&&$cp->save()) {
+                        $success[] = $cp;
+                    } else {
+                        $fail[] = $cp;
+                    }
                 }
             }