diff --git a/server/payserver/api/v1/ingame/ingame.go b/server/payserver/api/v1/ingame/ingame.go
index f81f327..bc84975 100644
--- a/server/payserver/api/v1/ingame/ingame.go
+++ b/server/payserver/api/v1/ingame/ingame.go
@@ -15,7 +15,7 @@ import (
 type InGameApi struct {
 }
 
-func (this *InGameApi) PreOrder(c *gin.Context) {
+func (iga *InGameApi) PreOrder(c *gin.Context) {
 	reqJson := struct {
 		AccountId string `json:"account_id" binding:"required"`
 		SessionId string `json:"session_id" binding:"required"`
@@ -26,7 +26,7 @@ func (this *InGameApi) PreOrder(c *gin.Context) {
 		return
 	}
 
-	data, ret := this.checkSessionData(c, reqJson.AccountId)
+	data, ret := iga.checkSessionData(c, reqJson.AccountId)
 	if !ret {
 		return
 	}
@@ -37,7 +37,7 @@ func (this *InGameApi) PreOrder(c *gin.Context) {
 	order.OrderId = q5.ToString(f5.GetApp().NewLockNodeUuid())
 	order.ItemId = reqJson.GoodsId
 	order.GameId = q5.SafeToInt32(data["gameid"])
-	order.IP = this.getIP(c)
+	order.IP = iga.getIP(c)
 
 	order.CreateTime = nowTime
 	order.ModifyTime = nowTime
@@ -60,17 +60,17 @@ func (this *InGameApi) PreOrder(c *gin.Context) {
 	c.JSON(200, rspObj)
 }
 
-func (this *InGameApi) ServerPreOrder(c *gin.Context) {
+func (iga *InGameApi) ServerPreOrder(c *gin.Context) {
 	accountId := c.Query("account_id")
 	goodsid := c.Query("goods_id")
 	sessionid := c.Query("session_id")
 	sign := c.Query("sign")
-	if strings.ToLower(q5.Md5Str(accountId+goodsid+constant.GLOBAL_SALT+sessionid)) != strings.ToLower(sign) {
+	if strings.EqualFold(q5.Md5Str(accountId+goodsid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
 		f5.RspErr(c, 401, "sign err")
 		return
 	}
 
-	data, ret := this.checkSessionData(c, accountId)
+	data, ret := iga.checkSessionData(c, accountId)
 	if !ret {
 		return
 	}
@@ -104,12 +104,12 @@ func (this *InGameApi) ServerPreOrder(c *gin.Context) {
 	c.JSON(200, rspObj)
 }
 
-func (this *InGameApi) PayDone(c *gin.Context) {
+func (iga *InGameApi) PayDone(c *gin.Context) {
 	accountId := c.Query("account_id")
 	orderid := c.Query("order_id")
 	sessionid := c.Query("session_id")
 	sign := c.Query("sign")
-	if strings.ToLower(q5.Md5Str(accountId+orderid+constant.GLOBAL_SALT+sessionid)) != strings.ToLower(sign) {
+	if strings.EqualFold(q5.Md5Str(accountId+orderid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
 		f5.RspErr(c, 401, "sign err")
 		return
 	}
@@ -123,7 +123,7 @@ func (this *InGameApi) PayDone(c *gin.Context) {
 		return
 	}
 
-	data, ret := this.checkSessionData(c, accountId)
+	data, ret := iga.checkSessionData(c, accountId)
 	if !ret {
 		return
 	}
@@ -142,7 +142,7 @@ func (this *InGameApi) PayDone(c *gin.Context) {
 	if status < 2 {
 		gameid := q5.SafeToInt64(data["gameid"])
 		openid := q5.SafeToString(data["openid"])
-		userip := this.getIP(c)
+		userip := iga.getIP(c)
 		balance, errcode, err := int64(0), int32(0), error(nil)
 		if status == 0 {
 			balance, errcode, err = service.Wxpay.QueryBalance(openid, gameid, userip, sessionkey)
@@ -174,7 +174,7 @@ func (this *InGameApi) PayDone(c *gin.Context) {
 	c.JSON(200, rspObj)
 }
 
-func (this *InGameApi) ServerPrePurchase(c *gin.Context) {
+func (iga *InGameApi) ServerPrePurchase(c *gin.Context) {
 	req := struct {
 		AccountId string `binding:"required" json:"account_id"`
 		SessionId string `binding:"required" json:"session_id"`
@@ -205,7 +205,7 @@ func (this *InGameApi) ServerPrePurchase(c *gin.Context) {
 		return
 	}
 
-	data, ret := this.checkSessionData(c, req.AccountId)
+	data, ret := iga.checkSessionData(c, req.AccountId)
 	if !ret {
 		return
 	}
@@ -259,7 +259,7 @@ func (this *InGameApi) ServerPrePurchase(c *gin.Context) {
 	c.JSON(200, rspObj)
 }
 
-func (this *InGameApi) OrderInfo(c *gin.Context) {
+func (iga *InGameApi) OrderInfo(c *gin.Context) {
 	reqJson := struct {
 		AccountId string `json:"account_id" binding:"required"`
 		SessionId string `json:"session_id" binding:"required"`
@@ -270,7 +270,7 @@ func (this *InGameApi) OrderInfo(c *gin.Context) {
 		return
 	}
 
-	data, ret := this.checkSessionData(c, reqJson.AccountId)
+	data, ret := iga.checkSessionData(c, reqJson.AccountId)
 	if !ret {
 		return
 	}
@@ -305,7 +305,7 @@ func (this *InGameApi) OrderInfo(c *gin.Context) {
 	if orderModel.Status == 0 {
 		gameid := q5.SafeToInt64(data["gameid"])
 		openid := q5.SafeToString(data["openid"])
-		userip := this.getIP(c)
+		userip := iga.getIP(c)
 		sessionkey := q5.SafeToString(data["session_key"])
 		balance, errcode, err := service.Wxpay.QueryBalance(openid, gameid, userip, sessionkey)
 		if err != nil {
@@ -339,7 +339,7 @@ func (this *InGameApi) OrderInfo(c *gin.Context) {
 	}
 }
 
-func (this *InGameApi) OtherOrder(c *gin.Context) {
+func (iga *InGameApi) OtherOrder(c *gin.Context) {
 	reqJson := struct {
 		AccountId string `json:"account_id" binding:"required"`
 		SessionId string `json:"session_id" binding:"required"`
@@ -349,7 +349,7 @@ func (this *InGameApi) OtherOrder(c *gin.Context) {
 		return
 	}
 
-	data, ret := this.checkSessionData(c, reqJson.AccountId)
+	data, ret := iga.checkSessionData(c, reqJson.AccountId)
 	if !ret {
 		return
 	}
@@ -364,7 +364,7 @@ func (this *InGameApi) OtherOrder(c *gin.Context) {
 
 	gameid := q5.SafeToInt64(data["gameid"])
 	openid := q5.SafeToString(data["openid"])
-	userip := this.getIP(c)
+	userip := iga.getIP(c)
 	balance, errcode, err := service.Wxpay.QueryBalance(openid, gameid, userip, sessionkey)
 	if err != nil {
 		f5.RspErr(c, 500, "wx server busy")
@@ -381,7 +381,7 @@ func (this *InGameApi) OtherOrder(c *gin.Context) {
 		if errcode == constant.WX_ERRCODE_OK {
 			order.GameId = int32(gameid)			
 			order.Channel = q5.SafeToInt32(data["channel"])
-			order.IP = this.getIP(c)
+			order.IP = iga.getIP(c)
 			order.Status = 2
 			order.SpOthers = int32(balance)
 			order.CreateTime = nowTime
@@ -401,7 +401,7 @@ func (this *InGameApi) OtherOrder(c *gin.Context) {
 	c.JSON(200, rspObj)
 }
 
-func (this *InGameApi) QueryPay(c *gin.Context) {
+func (iga *InGameApi) QueryPay(c *gin.Context) {
 	reqJson := struct {
 		AccountId string `json:"account_id" binding:"required"`
 		SessionId string `json:"session_id" binding:"required"`
@@ -412,7 +412,7 @@ func (this *InGameApi) QueryPay(c *gin.Context) {
 		return
 	}
 
-	_, ret := this.checkSessionData(c, reqJson.AccountId)
+	_, ret := iga.checkSessionData(c, reqJson.AccountId)
 	if !ret {
 		return
 	}