diff --git a/TokenNet/DevicesManagement.cpp b/TokenNet/DevicesManagement.cpp
index f55bc86d..e69d4256 100644
--- a/TokenNet/DevicesManagement.cpp
+++ b/TokenNet/DevicesManagement.cpp
@@ -305,26 +305,26 @@ bool DevicesManagement::DeviceProcess(DeviceAtions act, const Pair& args, Stream
 		ByteArray ids;
 		args.Get("ids", ids);
 
+		// result.Write(ids.Length());
 		for (int i = 0; i < ids.Length(); i++)	// 判定依据需要修改
 		{
 			// 获取数据ms
 			MemoryStream dvms;
-			
+
 			// 序列化一个DevInfo到ms
 			if (!GetDevInfo(ids[i], dvms))continue;
 			// 转换为ByteArray
 			ByteArray dvbs(dvms.GetBuffer(), dvms.Position());
-			// 写入DevInfo
-			// result.Write(String((byte)i));		// 数组格式   "idx" + Data
-			result.Write((byte)1);
-			result.Write((byte)i);
-			result.WriteEncodeInt(dvbs.Length());
-			result.Write(dvbs);
 
-			debug_printf("\r\n");
-			ByteArray bs(result.GetBuffer(), result.Position());
-			bs.Show(true);
+			// 写入DevInfo
+			result.WriteArray(String(i));
+
+			//result.Write((byte)1);		// idxlen 这里打死不会超过127   
+			//result.Write((byte)i);		// idx    这里长度不会大于127   所以简便写法  不使用压缩编码
+			result.WriteEncodeInt(dvbs.Length());	// data[x]len
+			result.Write(dvbs);						// data[x]
 		}
+		// ByteArray(result.GetBuffer(), result.Position()).Show(true);
 	}
 	break;
 
@@ -427,10 +427,8 @@ bool DevicesManagement::GetDevInfo(Device *dv, MemoryStream &ms)
 	return true;
 }
 
-
 /******************************** 发送Invoke ********************************/
 
-
 void DevicesManagement::SendDevicesIDs()
 {
 	// 获取IDList
@@ -540,7 +538,6 @@ void DevicesManagement::MaintainState()
 	if (Port->Status < 2) return;
 	SendDevicesIDs();
 
-	//auto now = Sys.Seconds();
 	auto now = DateTime::Now().TotalSeconds();
 
 	// 处理持久在线设备
@@ -558,9 +555,6 @@ void DevicesManagement::MaintainState()
 
 		ushort time = dv->OfflineTime ? dv->OfflineTime : 60;
 
-		// 特殊处理网关自身
-		// if (dv->Address == gw->Server->Cfg->Address) dv->LastTime = now;
-
 		if (dv->LastTime + time < now)
 		{	// 下线
 			if (dv->Logined)
diff --git a/TokenNet/Gateway.cpp b/TokenNet/Gateway.cpp
index 8199544f..962cd7e9 100644
--- a/TokenNet/Gateway.cpp
+++ b/TokenNet/Gateway.cpp
@@ -83,6 +83,8 @@ void Gateway::Start()
 	_task = Sys.AddTask(Loop, this, 10000, LOOP_Interval, "设备任务");
 
 	Running = true;
+
+	Client->Register("Gateway/Study", &Gateway::InvokeStudy, this);
 }
 
 // 停止网关。取消本地和远程的消息挂载
@@ -298,6 +300,19 @@ Gateway* Gateway::CreateGateway(TokenClient* client, TinyServer* server)
 
 	return gw;
 }
+/******************************** invoke 调用********************************/
+
+// 调用学习模式
+bool Gateway::InvokeStudy(const Pair& args, Stream& result)
+{
+	uint time;
+	args.Get("time", time);
+	SetMode(time);
+	result.Write((byte)true);
+
+	return true;
+}
+
 // 设备上线下线报备
 void Gateway::Loop(void* param)
 {
@@ -316,16 +331,6 @@ void Gateway::Loop(void* param)
 			gw->SetMode(0);
 		}
 	}
-	gw->pDevMgmt->MaintainState();
-}
-/******************************** invoke 调用********************************/
-// 调用学习模式
-bool Gateway::InvokeStudy(void * param, const Pair& args, Stream& result)
-{
-	uint time;
-	args.Get("time", time);
-	auto gw = (Gateway*)param;
-	gw->SetMode(time)
-		;
-	return true;
+	// gw->pDevMgmt->MaintainState();
 }
+
diff --git a/TokenNet/Gateway.h b/TokenNet/Gateway.h
index 6283af67..f2500cb1 100644
--- a/TokenNet/Gateway.h
+++ b/TokenNet/Gateway.h
@@ -50,7 +50,7 @@ public:
 	static Gateway* CreateGateway(TokenClient* client, TinyServer* server);
 
 	// 学习模式
-	static bool InvokeStudy(void * param, const Pair& args, Stream& result);
+	bool InvokeStudy(const Pair& args, Stream& result);
 
 public:
 	uint	_task = 0;	// 定时任务，10秒