添加：平台支持设置平台抽成比例

app/controller/admin/system/merchant/Merchant.php

@@ -205,6 +205,8 @@ class Merchant extends BaseController
             'sub_mchid',
             ['commission_switch',0],
             ['mer_integral_platform_rate',0],
+            ['mer_integral_merchant_rate',0],
+            ['platform_commission',0],
             ['avg_consumption',0],
             'mer_label',
         ]);