diff --git a/constants/orders.go b/constants/orders.go
index d6ffa7bf..7911782a 100644
--- a/constants/orders.go
+++ b/constants/orders.go
@@ -23,8 +23,8 @@ type ExchangeRateUnit interface{}
 type PayMethods string
 
 const (
-	PAY_METHOD_CARD PayMethods = "CARD"
-	PAY_METHOD_VISA PayMethods = "VISA"
+	PAY_METHOD_CARD PayMethods = "CARD" //card
+	PAY_METHOD_VISA PayMethods = "VISA" //visa
 )
 
 // 支付状态