diff --git a/C-CTP/src/QuantBox.C2CTP/MdUserApi.cpp b/C-CTP/src/QuantBox.C2CTP/MdUserApi.cpp
index b64802b..5d4b9ac 100644
--- a/C-CTP/src/QuantBox.C2CTP/MdUserApi.cpp
+++ b/C-CTP/src/QuantBox.C2CTP/MdUserApi.cpp
@@ -316,6 +316,19 @@ void CMdUserApi::OnRspUnSubMarketData(CThostFtdcSpecificInstrumentField *pSpecif
 //行情回调，得保证此函数尽快返回
 void CMdUserApi::OnRtnDepthMarketData(CThostFtdcDepthMarketDataField *pDepthMarketData)
 {
+	static bool __isFilterData = true;
+	static int __recordhistorytick = 0;
+
+	if (__isFilterData)	{		
+		__recordhistorytick++;
+
+		if (__recordhistorytick == this->m_setInstrumentIDs.size())	{
+			__isFilterData = false;
+		}	
+	}
+	else	{
+
 	if(m_msgQueue)
 		m_msgQueue->Input_OnRtnDepthMarketData(this,pDepthMarketData);
+	}
 }
\ No newline at end of file
diff --git a/C-CTP/src/QuantBox.C2CTP/TraderApi.cpp b/C-CTP/src/QuantBox.C2CTP/TraderApi.cpp
index e7ad115..e24cfa5 100644
--- a/C-CTP/src/QuantBox.C2CTP/TraderApi.cpp
+++ b/C-CTP/src/QuantBox.C2CTP/TraderApi.cpp
@@ -523,7 +523,7 @@ int CTraderApi::ReqOrderInsert(
 	body.TimeCondition = TimeCondition;
 	body.ContingentCondition = ContingentCondition;
 	body.StopPrice = StopPrice;
-
+	int n;
 	int nRet = 0;
 	{
 		//可能报单太快，m_nMaxOrderRef还没有改变就提交了
@@ -535,13 +535,13 @@ int CTraderApi::ReqOrderInsert(
 
 		//不保存到队列，而是直接发送
 		long lRequest = InterlockedIncrement(&m_lRequestID);
-		int n = m_pApi->ReqOrderInsert(&pRequest->InputOrderField,lRequest);
+		n = m_pApi->ReqOrderInsert(&pRequest->InputOrderField,lRequest);
 	}
 	delete pRequest;//用完后直接删除
 
 	//如何定位报单，用报单引用实际上并不靠谱
 	//如重新开软件、条件单，同时别的软件下单三个可能性要处理
-	return nRet;
+	return n >= 0 ? nRet: n;
 }
 
 void CTraderApi::OnRspOrderInsert(CThostFtdcInputOrderField *pInputOrder, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast)
diff --git a/CSharp-CTP/README.md b/CSharp-CTP/README.md
index 8a9da32..8319f92 100644
--- a/CSharp-CTP/README.md
+++ b/CSharp-CTP/README.md
@@ -1,5 +1,8 @@
 # CTP鐨凜#鎺ュ彛
 
+## 璇存槑
+quantbox涓嬮潰鐨凜Sharp-CTP鏄负openquant 3.5鎻愪緵鐨刾rovider,鎴戣繖涓猣ork涓昏鏄负openquant 2.9 鎻愪緵provider.淇敼浜嗕竴浜泀uantbox閲岄潰涓嶉�傚悎2.9鐗堟湰鐨勫唴瀹�.杩欎簺浠ｇ爜涓昏鏄秹鍙婂埌浜唎penquant 3.5涓竴浜涙柊鐨勫姛鑳�.
+
 ## 鐩殑
 鎻愪緵C#鎺ュ彛渚涚▼搴忚皟鐢�
 
@@ -49,4 +52,4 @@ while (true)
 ## 濡備綍寮�鍙戞鎺ュ彛
 1. 鎵撳紑QuantBox.CSharp2CTP.sln
 2. TraderApi銆丮dApi銆丆ommApi鏄搴旀帴鍙ｇ殑璋冪敤
-3. Callbacks.cs鏄洖璋冨嚱鏁板０鏄�
\ No newline at end of file
+3. Callbacks.cs鏄洖璋冨嚱鏁板０鏄�