diff --git a/webapp/services/MailApiService.php b/webapp/services/MailApiService.php
index 0989d860..763a203f 100644
--- a/webapp/services/MailApiService.php
+++ b/webapp/services/MailApiService.php
@@ -5,6 +5,7 @@ namespace services;
 class MailApiService extends BaseService {
 
     /*
+      orderId：订单id
       to：邮件接受方account_id
       content: 邮件正文
       attachments: 邮件附件
@@ -21,6 +22,7 @@ class MailApiService extends BaseService {
     }
 
     /*
+      orderId：订单id
       to：邮件接受方account_id
       content: 邮件正文
       attachments: 邮件附件