diff --git a/modules/arena/api_buy.go b/modules/arena/api_buy.go
index 231bf99ca..de0add1d6 100644
--- a/modules/arena/api_buy.go
+++ b/modules/arena/api_buy.go
@@ -7,7 +7,7 @@ import (
 	cfg "go_dreamfactory/sys/configure/structs"
 )
 
-//参数校验
+// 参数校验
 func (this *apiComp) BuyCheck(session comm.IUserSession, req *pb.ArenaBuyReq) (errdata *pb.ErrorData) {
 	if req.BuyNum == 0 {
 		errdata = &pb.ErrorData{
@@ -18,7 +18,7 @@ func (this *apiComp) BuyCheck(session comm.IUserSession, req *pb.ArenaBuyReq) (e
 	return
 }
 
-///获取自己的排行榜信息
+// /获取自己的排行榜信息
 func (this *apiComp) Buy(session comm.IUserSession, req *pb.ArenaBuyReq) (errdata *pb.ErrorData) {
 	var (
 		// global    *cfg.GameGlobalData
@@ -49,8 +49,8 @@ func (this *apiComp) Buy(session comm.IUserSession, req *pb.ArenaBuyReq) (errdat
 		return
 	}
 	this.module.modelArena.recoverTicket(session, info)
-
-	if maxbuy, err = this.module.ModuleTools.GetPriceGroupLen(comm.ArenaBuyType); err != nil {
+	pricekey := this.module.ModuleTools.GetGlobalConf().ArenaBuy
+	if maxbuy, err = this.module.ModuleTools.GetPriceGroupLen(pricekey); err != nil {
 		errdata = &pb.ErrorData{
 			Code:    pb.ErrorCode_ConfigNoFound,
 			Title:   pb.ErrorCode_CacheReadError.ToString(),