增加打印退款队列名

variable.go

@@ -94,6 +94,9 @@ const ORDER_VERIFY_KEY = "verify"
 //订单核销打印队列，打印服务用
 const PRINT_ORDER_VERIFY_QUEUE = "print_order_verify_queue"
 
+//订单退款打印队列，打印服务用
+const PRINT_ORDER_REFUND_QUEUE = "print_order_refund_queue"
+
 //订单延迟队列路由
 const ORDER_DELAY_EXCHANGE string = "ex_order_delay"