冗余代码去除

src/Bargain/Enum/BargainEnum.php

@@ -19,6 +19,7 @@ class BargainEnum
     //paystatus
     const HAVE_PAY =2;
     const PAY_EXCEPTION = 3;
+    const PAY_REFUND = 4;   // 退款
     
 
 }
\ No newline at end of file

src/LimitTimeBuy/Enum/LimitTimeOrderEnum.php

@@ -8,8 +8,10 @@ class LimitTimeOrderEnum
 
     //订单状态
     const STATUS_NORMAL = 1; //待支付  1未支付2已经支付3异常
-    const STATUS_HAVE_PAY =2;
-    const STATUS_PAY_EXCEPTION =3;
+    const STATUS_HAVE_PAY =2;  // 已经支付
+    const STATUS_PAY_EXCEPTION =3;  // 支付异常或过期未付
+    const STATUS_PAY_REFUND =4 ; // 退款
+