diff --git a/vn.oanda/vnoanda.py b/vn.oanda/vnoanda.py
index a53eafe9..6272b651 100644
--- a/vn.oanda/vnoanda.py
+++ b/vn.oanda/vnoanda.py
@@ -9,7 +9,7 @@ from threading import Thread
 API_SETTING = {}
 API_SETTING['practice'] = {'rest': 'https://api-fxpractice.oanda.com',
                            'stream': 'https://stream-fxpractice.oanda.com'}
-API_SETTING['trade'] = {'rest': 'https://api-fxpractice.oanda.com',
+API_SETTING['trade'] = {'rest': 'https://api-fxtrade.oanda.com',
                         'stream': 'https://stream-fxtrade.oanda.com/'}
 
 
diff --git a/vn.trader/ctaAlgo/ctaDemo.py b/vn.trader/ctaAlgo/ctaDemo.py
index 32612a4a..660c6667 100644
--- a/vn.trader/ctaAlgo/ctaDemo.py
+++ b/vn.trader/ctaAlgo/ctaDemo.py
@@ -181,15 +181,13 @@ class DoubleEmaDemo(CtaTemplate):
     
     
 ########################################################################################
-## 基于tick级别细粒度撤单追单测试demo
-
 class OrderManagementDemo(CtaTemplate):
-    """追撤单策略Demo"""
+    """基于tick级别细粒度撤单追单测试demo"""
+    
     className = 'OrderManagementDemo'
     author = u'用Python的交易员'
     
     # 策略参数
-
     initDays = 10   # 初始化数据所用的天数
     
     # 策略变量
@@ -212,10 +210,10 @@ class OrderManagementDemo(CtaTemplate):
     def __init__(self, ctaEngine, setting):
         """Constructor"""
         super(OrderManagementDemo, self).__init__(ctaEngine, setting)
-		
-	self.lastOrder = None
+                
+        self.lastOrder = None
         self.orderType = ''
-	
+        
     #----------------------------------------------------------------------
     def onInit(self):
         """初始化策略（必须由用户继承实现）"""
@@ -243,11 +241,11 @@ class OrderManagementDemo(CtaTemplate):
     def onTick(self, tick):
         """收到行情TICK推送（必须由用户继承实现）"""
 
-	# 建立不成交买单测试单	
-	if self.lastOrder == None:
-	    self.buy(tick.lastprice - 10.0, 1)
+        # 建立不成交买单测试单        
+        if self.lastOrder == None:
+            self.buy(tick.lastprice - 10.0, 1)
 
-	# CTA委托类型映射
+        # CTA委托类型映射
         if self.lastOrder != None and self.lastOrder.direction == u'多' and self.lastOrder.offset == u'开仓':
             self.orderType = u'买开'
 
@@ -259,21 +257,22 @@ class OrderManagementDemo(CtaTemplate):
 
         elif self.lastOrder != None and self.lastOrder.direction == u'空' and self.lastOrder.offset == u'平仓':
             self.orderType = u'卖平'
-		
-	# 不成交，即撤单，并追单
+                
+        # 不成交，即撤单，并追单
         if self.lastOrder != None and self.lastOrder.status == u'未成交':
 
             self.cancelOrder(self.lastOrder.vtOrderID)
             self.lastOrder = None
         elif self.lastOrder != None and self.lastOrder.status == u'已撤销':
-	# 追单并设置为不能成交
+        # 追单并设置为不能成交
             
             self.sendOrder(self.orderType, self.tick.lastprice - 10, 1)
             self.lastOrder = None
+            
     #----------------------------------------------------------------------
     def onBar(self, bar):
         """收到Bar推送（必须由用户继承实现）"""
-	pass
+        pass
     
     #----------------------------------------------------------------------
     def onOrder(self, order):
diff --git a/vn.trader/oandaGateway/vnoanda.py b/vn.trader/oandaGateway/vnoanda.py
index 570d3f73..62f29609 100644
--- a/vn.trader/oandaGateway/vnoanda.py
+++ b/vn.trader/oandaGateway/vnoanda.py
@@ -9,7 +9,7 @@ from threading import Thread
 API_SETTING = {}
 API_SETTING['practice'] = {'rest': 'https://api-fxpractice.oanda.com',
                            'stream': 'https://stream-fxpractice.oanda.com'}
-API_SETTING['trade'] = {'rest': 'https://api-fxpractice.oanda.com',
+API_SETTING['trade'] = {'rest': 'https://api-fxtrade.oanda.com',
                         'stream': 'https://stream-fxtrade.oanda.com/'}