diff --git a/Easy2D/Action/Action.cpp b/Easy2D/Action/Action.cpp
index 81f1b4ac..1d3de0cb 100644
--- a/Easy2D/Action/Action.cpp
+++ b/Easy2D/Action/Action.cpp
@@ -3,7 +3,8 @@
 
 Action::Action() :
 	m_bRunning(true),
-	m_bStop(false),
+	m_bWaiting(false),
+	m_bEnding(false),
 	m_pTargetSprite(nullptr),
 	m_pParentScene(nullptr)
 {
@@ -17,7 +18,12 @@ Action::~Action()
 
 bool Action::isRunning()
 {
-	return m_bRunning;
+	return m_bRunning && !m_bWaiting;
+}
+
+bool Action::isEnding()
+{
+	return m_bEnding;
 }
 
 void Action::start()
@@ -37,7 +43,16 @@ void Action::pause()
 
 void Action::stop()
 {
-	m_bStop = true;
+	m_bEnding = true;
+}
+void Action::wait()
+{
+	m_bWaiting = true;
+}
+
+void Action::notify()
+{
+	m_bWaiting = false;
 }
 
 void Action::setInterval(UINT ms)
@@ -55,3 +70,8 @@ Action * Action::reverse() const
 	assert(0);
 	return nullptr;
 }
+
+void Action::_reset()
+{
+	m_bEnding = false;
+}
diff --git a/Easy2D/Action/ActionCallback.cpp b/Easy2D/Action/ActionCallback.cpp
index ddd45803..fc6f8373 100644
--- a/Easy2D/Action/ActionCallback.cpp
+++ b/Easy2D/Action/ActionCallback.cpp
@@ -18,15 +18,13 @@ void ActionCallback::_init()
 {
 }
 
-bool ActionCallback::_exec(LARGE_INTEGER nNow)
+void ActionCallback::_exec(LARGE_INTEGER nNow)
 {
-	if (!m_bStop)
-	{
-		m_Callback();
-	}
-	return true;
+	m_Callback();
+	this->stop();
 }
 
 void ActionCallback::_reset()
 {
+	Action::_reset();
 }
diff --git a/Easy2D/Action/ActionDelay.cpp b/Easy2D/Action/ActionDelay.cpp
index 219af36b..70f63746 100644
--- a/Easy2D/Action/ActionDelay.cpp
+++ b/Easy2D/Action/ActionDelay.cpp
@@ -20,21 +20,18 @@ void ActionDelay::_init()
 	QueryPerformanceCounter(&m_nLast);
 }
 
-bool ActionDelay::_exec(LARGE_INTEGER nNow)
+void ActionDelay::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-
 	// 判断时间间隔是否足够
 	if (nNow.QuadPart - m_nLast.QuadPart > m_nAnimationInterval.QuadPart)
 	{
-		return true;
+		this->stop();
 	}
-	return false;
 }
 
 void ActionDelay::_reset()
 {
+	Action::_reset();
 	// 重新记录当前时间
 	QueryPerformanceCounter(&m_nLast);
 }
diff --git a/Easy2D/Action/ActionFrames.cpp b/Easy2D/Action/ActionFrames.cpp
index 5b2a561f..87653f70 100644
--- a/Easy2D/Action/ActionFrames.cpp
+++ b/Easy2D/Action/ActionFrames.cpp
@@ -27,11 +27,8 @@ void ActionFrames::_init()
 	QueryPerformanceCounter(&m_nLast);
 }
 
-bool ActionFrames::_exec(LARGE_INTEGER nNow)
+void ActionFrames::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-
 	// 判断时间间隔是否足够
 	while (nNow.QuadPart - m_nLast.QuadPart > m_nAnimationInterval.QuadPart)
 	{
@@ -42,14 +39,14 @@ bool ActionFrames::_exec(LARGE_INTEGER nNow)
 		// 判断动作是否结束
 		if (m_nFrameIndex == m_vFrames.size())
 		{
-			return true;
+			this->stop();
 		}
 	}
-	return false;
 }
 
 void ActionFrames::_reset()
 {
+	Action::_reset();
 	m_nFrameIndex = 0;
 }
 
diff --git a/Easy2D/Action/ActionMoveBy.cpp b/Easy2D/Action/ActionMoveBy.cpp
index 3231d8de..dc48f1b8 100644
--- a/Easy2D/Action/ActionMoveBy.cpp
+++ b/Easy2D/Action/ActionMoveBy.cpp
@@ -16,12 +16,9 @@ void ActionMoveBy::_init()
 	m_BeginPos = m_pTargetSprite->getPos();
 }
 
-bool ActionMoveBy::_exec(LARGE_INTEGER nNow)
+void ActionMoveBy::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-	
-	while (Animation::_exec(nNow))
+	if (Animation::_isDelayEnough(nNow))
 	{
 		// 计算移动位置
 		float scale = float(m_nDuration) / m_nTotalDuration;
@@ -31,10 +28,9 @@ bool ActionMoveBy::_exec(LARGE_INTEGER nNow)
 		// 判断动作是否结束
 		if (_isEnd())
 		{
-			return true;
+			this->stop();
 		}
 	}
-	return false;
 }
 
 void ActionMoveBy::_reset()
diff --git a/Easy2D/Action/ActionNeverStop.cpp b/Easy2D/Action/ActionNeverStop.cpp
index b42fd5ba..6da217c1 100644
--- a/Easy2D/Action/ActionNeverStop.cpp
+++ b/Easy2D/Action/ActionNeverStop.cpp
@@ -22,20 +22,17 @@ void ActionNeverStop::_init()
 	m_Action->_init();
 }
 
-bool ActionNeverStop::_exec(LARGE_INTEGER nNow)
+void ActionNeverStop::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
+	m_Action->_exec(nNow);
 
-	if (m_Action->_exec(nNow))
+	if (m_Action->isEnding())
 	{
 		m_Action->_reset();
 	}
-	// 永不结束
-	return false;
 }
 
 void ActionNeverStop::_reset()
 {
-	m_Action->_reset();
+	Action::_reset();
 }
diff --git a/Easy2D/Action/ActionOpacityBy.cpp b/Easy2D/Action/ActionOpacityBy.cpp
index 47c4a83c..216cfe80 100644
--- a/Easy2D/Action/ActionOpacityBy.cpp
+++ b/Easy2D/Action/ActionOpacityBy.cpp
@@ -16,12 +16,9 @@ void ActionOpacityBy::_init()
 	m_nBeginVal = m_pTargetSprite->getOpacity();
 }
 
-bool ActionOpacityBy::_exec(LARGE_INTEGER nNow)
+void ActionOpacityBy::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-
-	while (Animation::_exec(nNow))
+	if (Animation::_isDelayEnough(nNow))
 	{
 		// 计算移动位置
 		float scale = float(m_nDuration) / m_nTotalDuration;
@@ -30,10 +27,9 @@ bool ActionOpacityBy::_exec(LARGE_INTEGER nNow)
 		// 判断动作是否结束
 		if (_isEnd())
 		{
-			return true;
+			this->stop();
 		}
 	}
-	return false;
 }
 
 void ActionOpacityBy::_reset()
diff --git a/Easy2D/Action/ActionScaleBy.cpp b/Easy2D/Action/ActionScaleBy.cpp
index d02338dd..18a4b380 100644
--- a/Easy2D/Action/ActionScaleBy.cpp
+++ b/Easy2D/Action/ActionScaleBy.cpp
@@ -18,12 +18,9 @@ void ActionScaleBy::_init()
 	m_nBeginScaleY = m_pTargetSprite->getScaleY();
 }
 
-bool ActionScaleBy::_exec(LARGE_INTEGER nNow)
+void ActionScaleBy::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-
-	while (Animation::_exec(nNow))
+	if (Animation::_isDelayEnough(nNow))
 	{
 		// 计算移动位置
 		float scale = float(m_nDuration) / m_nTotalDuration;
@@ -32,10 +29,9 @@ bool ActionScaleBy::_exec(LARGE_INTEGER nNow)
 		// 判断动作是否结束
 		if (_isEnd())
 		{
-			return true;
+			this->stop();
 		}
 	}
-	return false;
 }
 
 void ActionScaleBy::_reset()
diff --git a/Easy2D/Action/ActionSequence.cpp b/Easy2D/Action/ActionSequence.cpp
index 86169530..71fe65c3 100644
--- a/Easy2D/Action/ActionSequence.cpp
+++ b/Easy2D/Action/ActionSequence.cpp
@@ -38,28 +38,27 @@ void ActionSequence::_init()
 	m_vActions[0]->_init();
 }
 
-bool ActionSequence::_exec(LARGE_INTEGER nNow)
+void ActionSequence::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
+	m_vActions[m_nActionIndex]->_exec(nNow);
 
-	if (m_vActions[m_nActionIndex]->_exec(nNow))
+	if (m_vActions[m_nActionIndex]->isEnding())
 	{
 		m_nActionIndex++;
 		if (m_nActionIndex == m_vActions.size())
 		{
-			return true;
+			this->stop();
 		}
 		else
 		{
 			m_vActions[m_nActionIndex]->_init();
 		}
 	}
-	return false;
 }
 
 void ActionSequence::_reset()
 {
+	Action::_reset();
 	for (auto action : m_vActions)
 	{
 		action->_reset();
diff --git a/Easy2D/Action/ActionTwo.cpp b/Easy2D/Action/ActionTwo.cpp
index 863e77e0..5472aaae 100644
--- a/Easy2D/Action/ActionTwo.cpp
+++ b/Easy2D/Action/ActionTwo.cpp
@@ -2,8 +2,7 @@
 
 ActionTwo::ActionTwo(Action * actionFirst, Action * actionSecond) :
 	m_FirstAction(actionFirst),
-	m_SecondAction(actionSecond),
-	m_bFirstFinished(false)
+	m_SecondAction(actionSecond)
 {
 	m_FirstAction->retain();
 	m_SecondAction->retain();
@@ -40,32 +39,33 @@ void ActionTwo::_init()
 	m_FirstAction->_init();
 }
 
-bool ActionTwo::_exec(LARGE_INTEGER nNow)
+void ActionTwo::_exec(LARGE_INTEGER nNow)
 {
-	if (m_bStop) return true;
-	if (!m_bRunning) return false;
-
-	if (!m_bFirstFinished)
+	if (!m_FirstAction->isEnding())
 	{
-		if (m_FirstAction->_exec(nNow))
+		m_FirstAction->_exec(nNow);
+		if (m_FirstAction->isEnding())
 		{
 			// 返回 true 表示第一个动作已经结束
 			m_SecondAction->_init();
-			m_bFirstFinished = true;
 		}
 	}
-	else if (m_SecondAction->_exec(nNow))
+	else if (!m_SecondAction->isEnding())
 	{
-		return true;
+		m_SecondAction->_exec(nNow);
+	}
+	else
+	{
+		this->stop();
 	}
-	return false;
 }
 
 void ActionTwo::_reset()
 {
+	Action::_reset();
+
 	m_FirstAction->_reset();
 	m_SecondAction->_reset();
 
 	m_FirstAction->_init();
-	m_bFirstFinished = false;
 }
diff --git a/Easy2D/Action/Animation.cpp b/Easy2D/Action/Animation.cpp
index cea441e0..69c01e48 100644
--- a/Easy2D/Action/Animation.cpp
+++ b/Easy2D/Action/Animation.cpp
@@ -21,7 +21,7 @@ void Animation::_init()
 	QueryPerformanceCounter(&m_nLast);
 }
 
-bool Animation::_exec(LARGE_INTEGER nNow)
+bool Animation::_isDelayEnough(LARGE_INTEGER nNow)
 {
 	// 判断时间间隔是否足够
 	if (nNow.QuadPart - m_nLast.QuadPart > m_nAnimationInterval.QuadPart)
@@ -36,6 +36,7 @@ bool Animation::_exec(LARGE_INTEGER nNow)
 
 void Animation::_reset()
 {
+	Action::_reset();
 	m_nDuration = 0;
 	// 重新记录当前时间
 	QueryPerformanceCounter(&m_nLast);
diff --git a/Easy2D/Base/App.cpp b/Easy2D/Base/App.cpp
index 197c1eb6..f208ac8f 100644
--- a/Easy2D/Base/App.cpp
+++ b/Easy2D/Base/App.cpp
@@ -16,6 +16,7 @@ static int originY = 0;
 App::App() : 
 	m_pCurrentScene(nullptr), 
 	m_pNextScene(nullptr), 
+	m_pLoadingScene(nullptr),
 	m_bRunning(false), 
 	m_nWindowMode(0),
 	m_bSaveScene(true)
@@ -302,10 +303,10 @@ void App::_enterNextScene()
 			// 若要保存当前场景，把它放入栈中
 			m_SceneStack.push(m_pCurrentScene);
 			// 暂停当前场景上运行的所有定时器
-			Timer::stopAllSceneTimers(m_pCurrentScene);
-			MouseMsg::stopAllSceneListeners(m_pCurrentScene);
-			KeyMsg::stopAllSceneListeners(m_pCurrentScene);
-			ActionManager::pauseAllSceneActions(m_pCurrentScene);
+			Timer::waitAllSceneTimers(m_pCurrentScene);
+			MouseMsg::waitAllSceneListeners(m_pCurrentScene);
+			KeyMsg::waitAllSceneListeners(m_pCurrentScene);
+			ActionManager::waitAllSceneActions(m_pCurrentScene);
 		}
 		else
 		{
@@ -324,10 +325,10 @@ void App::_enterNextScene()
 	if (bBackScene)
 	{
 		// 返回上一场景时，恢复场景上的定时器
-		Timer::startAllSceneTimers(m_pCurrentScene);
-		MouseMsg::startAllSceneListeners(m_pCurrentScene);
-		KeyMsg::startAllSceneListeners(m_pCurrentScene);
-		ActionManager::startAllSceneActions(m_pCurrentScene);
+		Timer::notifyAllSceneTimers(m_pCurrentScene);
+		MouseMsg::notifyAllSceneListeners(m_pCurrentScene);
+		KeyMsg::notifyAllSceneListeners(m_pCurrentScene);
+		ActionManager::notifyAllSceneActions(m_pCurrentScene);
 	}
 	else
 	{
@@ -358,14 +359,12 @@ void App::reset()
 Scene * App::getCurrentScene()
 {
 	// 获取当前场景的指针
-	if (s_pInstance->m_pCurrentScene)
-	{
-		return s_pInstance->m_pCurrentScene;
-	}
-	else
-	{
-		return s_pInstance->m_pNextScene;
-	}
+	return s_pInstance->m_pCurrentScene;
+}
+
+Scene * App::getLoadingScene()
+{
+	return s_pInstance->m_pLoadingScene;
 }
 
 void App::setFPS(DWORD fps)
diff --git a/Easy2D/Base/Scene.cpp b/Easy2D/Base/Scene.cpp
index f16b175b..da816e06 100644
--- a/Easy2D/Base/Scene.cpp
+++ b/Easy2D/Base/Scene.cpp
@@ -3,6 +3,7 @@
 
 Scene::Scene()
 {
+	App::get()->m_pLoadingScene = this;
 }
 
 Scene::~Scene()
diff --git a/Easy2D/Msg/KeyMsg.cpp b/Easy2D/Msg/KeyMsg.cpp
index 9a8f1db6..f21b55e1 100644
--- a/Easy2D/Msg/KeyMsg.cpp
+++ b/Easy2D/Msg/KeyMsg.cpp
@@ -84,7 +84,8 @@ KeyMsg::KeyMsg(TString name, const KEY_CALLBACK & callback) :
 	m_sName(name),
 	m_callback(callback),
 	m_pParentScene(nullptr),
-	m_bRunning(true)
+	m_bRunning(true),
+	m_bWaiting(false)
 {
 }
 
@@ -107,6 +108,16 @@ void KeyMsg::stop()
 	m_bRunning = false;
 }
 
+void KeyMsg::wait()
+{
+	m_bWaiting = true;
+}
+
+void KeyMsg::notify()
+{
+	m_bWaiting = false;
+}
+
 void KeyMsg::__exec()
 {
 	if (_kbhit())						// 检测有无按键消息
@@ -115,7 +126,7 @@ void KeyMsg::__exec()
 
 		for (auto l : s_vListeners)		// 分发该消息
 		{
-			if (l->m_bRunning)
+			if (!l->m_bWaiting && l->m_bRunning)
 			{
 				l->onKbHit(key);		// 执行按键回调函数
 			}
@@ -128,7 +139,7 @@ void KeyMsg::addListener(TString name, const KEY_CALLBACK & callback)
 	// 创建新的监听对象
 	auto listener = new KeyMsg(name, callback);
 	// 绑定在场景上
-	listener->m_pParentScene = App::getCurrentScene();
+	listener->m_pParentScene = App::getLoadingScene();
 	// 添加新的按键回调函数
 	s_vListeners.push_back(listener);
 }
@@ -138,7 +149,7 @@ void KeyMsg::startListener(TString name)
 	// 查找名称相同的监听器
 	for (auto l : s_vListeners)
 	{
-		if (l->m_sName == name && l->m_pParentScene == App::getCurrentScene())
+		if (l->m_sName == name)
 		{
 			l->start();
 		}
@@ -150,7 +161,7 @@ void KeyMsg::stopListener(TString name)
 	// 查找名称相同的监听器
 	for (auto l : s_vListeners)
 	{
-		if (l->m_sName == name && l->m_pParentScene == App::getCurrentScene())
+		if (l->m_sName == name)
 		{
 			l->stop();
 		}
@@ -165,7 +176,7 @@ void KeyMsg::delListener(TString name)
 	for (iter = s_vListeners.begin(); iter != s_vListeners.end();)
 	{
 		// 查找相同名称的监听器
-		if ((*iter)->m_sName == name && (*iter)->m_pParentScene == App::getCurrentScene())
+		if ((*iter)->m_sName == name)
 		{
 			// 删除该定时器
 			delete (*iter);
@@ -178,24 +189,24 @@ void KeyMsg::delListener(TString name)
 	}
 }
 
-void KeyMsg::startAllSceneListeners(Scene * scene)
+void KeyMsg::notifyAllSceneListeners(Scene * scene)
 {
 	for (auto l : s_vListeners)
 	{
 		if (l->m_pParentScene == scene)
 		{
-			l->start();
+			l->notify();
 		}
 	}
 }
 
-void KeyMsg::stopAllSceneListeners(Scene * scene)
+void KeyMsg::waitAllSceneListeners(Scene * scene)
 {
 	for (auto l : s_vListeners)
 	{
 		if (l->m_pParentScene == scene)
 		{
-			l->stop();
+			l->wait();
 		}
 	}
 }
diff --git a/Easy2D/Msg/MouseMsg.cpp b/Easy2D/Msg/MouseMsg.cpp
index 14b5d693..58caf147 100644
--- a/Easy2D/Msg/MouseMsg.cpp
+++ b/Easy2D/Msg/MouseMsg.cpp
@@ -19,7 +19,7 @@ void MouseMsg::__exec()
 		// 执行鼠标监听回调函数
 		for (auto l : s_vListeners)	// 循环遍历所有的鼠标监听
 		{
-			if (l->m_bRunning)
+			if (!l->m_bWaiting && l->m_bRunning)
 			{
 				l->onMouseMsg();	// 执行回调函数
 			}
@@ -30,7 +30,8 @@ void MouseMsg::__exec()
 MouseMsg::MouseMsg() :
 	m_callback([]() {}),
 	m_pParentScene(nullptr),
-	m_bRunning(true)
+	m_bRunning(true),
+	m_bWaiting(false)
 {
 }
 
@@ -38,7 +39,8 @@ MouseMsg::MouseMsg(TString name, const MOUSE_CALLBACK & callback) :
 	m_sName(name),
 	m_callback(callback),
 	m_pParentScene(nullptr),
-	m_bRunning(true)
+	m_bRunning(true),
+	m_bWaiting(false)
 {
 }
 
@@ -56,7 +58,7 @@ void MouseMsg::addListener(TString name, const MOUSE_CALLBACK & callback)
 	// 创建新的监听对象
 	auto listener = new MouseMsg(name, callback);
 	// 绑定在场景上
-	listener->m_pParentScene = App::getCurrentScene();
+	listener->m_pParentScene = App::getLoadingScene();
 	// 添加新的按键回调函数
 	s_vListeners.push_back(listener);
 }
@@ -66,7 +68,7 @@ void MouseMsg::startListener(TString name)
 	// 查找名称相同的监听器
 	for (auto l : s_vListeners)
 	{
-		if (l->m_sName == name && l->m_pParentScene == App::getCurrentScene())
+		if (l->m_sName == name)
 		{
 			l->start();
 		}
@@ -78,7 +80,7 @@ void MouseMsg::stopListener(TString name)
 	// 查找名称相同的监听器
 	for (auto l : s_vListeners)
 	{
-		if (l->m_sName == name && l->m_pParentScene == App::getCurrentScene())
+		if (l->m_sName == name)
 		{
 			l->stop();
 		}
@@ -93,7 +95,7 @@ void MouseMsg::delListener(TString name)
 	for (iter = s_vListeners.begin(); iter != s_vListeners.end();)
 	{
 		// 查找相同名称的监听器
-		if ((*iter)->m_sName == name && (*iter)->m_pParentScene == App::getCurrentScene())
+		if ((*iter)->m_sName == name)
 		{
 			// 删除该定时器
 			delete (*iter);
@@ -116,6 +118,16 @@ void MouseMsg::stop()
 	m_bRunning = false;
 }
 
+void MouseMsg::wait()
+{
+	m_bWaiting = true;
+}
+
+void MouseMsg::notify()
+{
+	m_bWaiting = false;
+}
+
 void MouseMsg::clearAllListeners()
 {
 	// 删除所有监听器
@@ -127,24 +139,24 @@ void MouseMsg::clearAllListeners()
 	s_vListeners.clear();
 }
 
-void MouseMsg::startAllSceneListeners(Scene * scene)
+void MouseMsg::notifyAllSceneListeners(Scene * scene)
 {
 	for (auto l : s_vListeners)
 	{
 		if (l->m_pParentScene == scene)
 		{
-			l->start();
+			l->notify();
 		}
 	}
 }
 
-void MouseMsg::stopAllSceneListeners(Scene * scene)
+void MouseMsg::waitAllSceneListeners(Scene * scene)
 {
 	for (auto l : s_vListeners)
 	{
 		if (l->m_pParentScene == scene)
 		{
-			l->stop();
+			l->wait();
 		}
 	}
 }
diff --git a/Easy2D/Tool/ActionManager.cpp b/Easy2D/Tool/ActionManager.cpp
index 7c2c015e..44b4e0cd 100644
--- a/Easy2D/Tool/ActionManager.cpp
+++ b/Easy2D/Tool/ActionManager.cpp
@@ -11,12 +11,18 @@ void ActionManager::__exec()
 	// 循环遍历所有正在运行的动作
 	for (size_t i = 0; i < s_vActions.size(); i++)
 	{
-		auto a = s_vActions[i];
-		if (a->isRunning() && a->_exec(nNow))
+		if (s_vActions[i]->isRunning())
 		{
-			// _exec 返回 true 时说明动作已经结束
-			a->release();
-			s_vActions.erase(s_vActions.begin() + i);
+			if (s_vActions[i]->isEnding())
+			{
+				// 动作已经结束
+				s_vActions[i]->release();
+				s_vActions.erase(s_vActions.begin() + i);
+			}
+			else
+			{
+				s_vActions[i]->_exec(nNow);
+			}
 		}
 	}
 }
@@ -31,30 +37,30 @@ void ActionManager::addAction(Action * action)
 			assert(a != action);
 		}
 #endif
-		action->m_pParentScene = App::getCurrentScene();
+		action->m_pParentScene = App::getLoadingScene();
 		action->_init();
 		s_vActions.push_back(action);
 	}
 }
 
-void ActionManager::startAllSceneActions(Scene * scene)
+void ActionManager::notifyAllSceneActions(Scene * scene)
 {
 	for (auto action : s_vActions)
 	{
 		if (action->m_pParentScene == scene)
 		{
-			action->start();
+			action->notify();
 		}
 	}
 }
 
-void ActionManager::pauseAllSceneActions(Scene * scene)
+void ActionManager::waitAllSceneActions(Scene * scene)
 {
 	for (auto action : s_vActions)
 	{
 		if (action->m_pParentScene == scene)
 		{
-			action->pause();
+			action->wait();
 		}
 	}
 }
diff --git a/Easy2D/Tool/Timer.cpp b/Easy2D/Tool/Timer.cpp
index f1d77df8..16ea3c60 100644
--- a/Easy2D/Tool/Timer.cpp
+++ b/Easy2D/Tool/Timer.cpp
@@ -6,6 +6,7 @@ static std::vector<Timer*> s_vTimers;
 Timer::Timer(TString name, UINT ms, const TIMER_CALLBACK & callback) :
 	m_sName(name),
 	m_bRunning(false),
+	m_bWaiting(false),
 	m_callback(callback),
 	m_pParentScene(nullptr)
 {
@@ -19,19 +20,29 @@ Timer::~Timer()
 void Timer::start()
 {
 	// 标志该定时器正在运行
-	this->m_bRunning = true;
+	m_bRunning = true;
 	// 记录当前时间
 	QueryPerformanceCounter(&m_nLast);
 }
 
 void Timer::stop()
 {
-	this->m_bRunning = false;	// 标志该定时器已停止
+	m_bRunning = false;	// 标志该定时器已停止
+}
+
+void Timer::wait()
+{
+	m_bWaiting = true;
+}
+
+void Timer::notify()
+{
+	m_bWaiting = false;
 }
 
 bool Timer::isRunning()
 {
-	return m_bRunning;			// 获取该定时器的运行状态
+	return m_bRunning && !m_bWaiting;			// 获取该定时器的运行状态
 }
 
 void Timer::setInterval(UINT ms)
@@ -78,7 +89,7 @@ void Timer::__exec()
 	for (auto timer : s_vTimers)
 	{
 		// 若定时器未运行，跳过这个定时器
-		if (!timer->m_bRunning) 
+		if (!timer->isRunning()) 
 		{
 			continue;
 		}
@@ -98,7 +109,7 @@ void Timer::addTimer(Timer * timer)
 	// 启动定时器
 	timer->start();
 	// 绑定在场景上
-	timer->m_pParentScene = App::getCurrentScene();
+	timer->m_pParentScene = App::getLoadingScene();
 	// 将该定时器放入容器
 	s_vTimers.push_back(timer);
 }
@@ -169,24 +180,24 @@ void Timer::clearAllTimers()
 	s_vTimers.clear();
 }
 
-void Timer::startAllSceneTimers(Scene * scene)
+void Timer::notifyAllSceneTimers(Scene * scene)
 {
 	for (auto t : s_vTimers)
 	{
 		if (t->m_pParentScene == scene)
 		{
-			t->start();
+			t->notify();
 		}
 	}
 }
 
-void Timer::stopAllSceneTimers(Scene * scene)
+void Timer::waitAllSceneTimers(Scene * scene)
 {
 	for (auto t : s_vTimers)
 	{
 		if (t->m_pParentScene == scene)
 		{
-			t->stop();
+			t->wait();
 		}
 	}
 }
diff --git a/Easy2D/easy2d.h b/Easy2D/easy2d.h
index 4881df52..8df250d9 100644
--- a/Easy2D/easy2d.h
+++ b/Easy2D/easy2d.h
@@ -112,6 +112,7 @@ namespace easy2d
 
 class App
 {
+	friend Scene;
 public:
 	App();
 	~App();
@@ -176,12 +177,15 @@ public:
 	static void reset();
 	// 获取当前场景
 	static Scene * getCurrentScene();
+	// 获取正处于加载中的场景
+	static Scene * getLoadingScene();
 
 protected:
 	TString				m_sTitle;
 	TString				m_sAppName;
 	Scene*				m_pCurrentScene;
 	Scene*				m_pNextScene;
+	Scene*				m_pLoadingScene;
 	std::stack<Scene*>	m_SceneStack;
 	LARGE_INTEGER		m_nAnimationInterval;
 	CSize				m_Size;
@@ -283,6 +287,10 @@ public:
 	void start();
 	// 停止监听
 	void stop();
+	// 进入等待状态
+	void wait();
+	// 唤醒
+	void notify();
 
 	// 左键是否按下
 	static bool isLButtonDown();
@@ -312,9 +320,9 @@ public:
 	// 删除所有鼠标消息监听
 	static void clearAllListeners();
 	// 启动绑定在场景上的所有监听器
-	static void startAllSceneListeners(Scene* scene);
+	static void notifyAllSceneListeners(Scene* scene);
 	// 停止绑定在场景上的所有监听器
-	static void stopAllSceneListeners(Scene* scene);
+	static void waitAllSceneListeners(Scene* scene);
 	// 清除绑定在场景上的所有监听器
 	static void clearAllSceneListeners(Scene* scene);
 
@@ -323,6 +331,7 @@ private:
 
 protected:
 	bool			m_bRunning;
+	bool			m_bWaiting;
 	TString			m_sName;
 	MOUSE_CALLBACK	m_callback;
 	Scene *			m_pParentScene;
@@ -345,6 +354,10 @@ public:
 	void start();
 	// 停止监听
 	void stop();
+	// 进入等待状态
+	void wait();
+	// 唤醒
+	void notify();
 
 	// 判断键是否被按下，按下返回true
 	static bool isKeyDown(VK_KEY key);
@@ -357,9 +370,9 @@ public:
 	// 删除按键监听
 	static void KeyMsg::delListener(TString name);
 	// 启动绑定在场景上的所有监听器
-	static void startAllSceneListeners(Scene* scene);
+	static void notifyAllSceneListeners(Scene* scene);
 	// 停止绑定在场景上的所有监听器
-	static void stopAllSceneListeners(Scene* scene);
+	static void waitAllSceneListeners(Scene* scene);
 	// 停止绑定在场景上的所有定时器
 	static void clearAllSceneListeners(Scene* scene);
 	// 删除所有按键监听
@@ -382,6 +395,7 @@ private:
 
 protected:
 	bool			m_bRunning;
+	bool			m_bWaiting;
 	TString			m_sName;
 	KEY_CALLBACK	m_callback;
 	Scene *			m_pParentScene;
@@ -1060,18 +1074,33 @@ public:
 	Action();
 	virtual ~Action();
 
-	bool isRunning();
-	void start();
-	void resume();
-	void pause();
-	void stop();
-	void setInterval(UINT ms);
+	// 获取动作运行状态
+	virtual bool isRunning();
+	// 获取动作结束状态
+	virtual bool isEnding();
+	// 继续动作
+	virtual void start();
+	// 继续动作
+	virtual void resume();
+	// 暂停动作
+	virtual void pause();
+	// 停止动作
+	virtual void stop();
+	// 进入等待状态
+	virtual void wait();
+	// 唤醒
+	virtual void notify();
+	// 设置动作每一帧时间间隔
+	virtual void setInterval(UINT ms);
+	// 获取一个新的拷贝动作
 	virtual Action * copy() const = 0;
+	// 获取一个新的逆向动作
 	virtual Action * reverse() const;
 
 protected:
 	bool			m_bRunning;
-	bool			m_bStop;
+	bool			m_bWaiting;
+	bool			m_bEnding;
 	Sprite *		m_pTargetSprite;
 	Scene *			m_pParentScene;
 	UINT			m_nMilliSeconds;
@@ -1080,8 +1109,8 @@ protected:
 
 protected:
 	virtual void _init() = 0;
-	virtual bool _exec(LARGE_INTEGER nNow) = 0;
-	virtual void _reset() = 0;
+	virtual void _exec(LARGE_INTEGER nNow) = 0;
+	virtual void _reset();
 };
 
 class Animation :
@@ -1097,8 +1126,8 @@ protected:
 
 protected:
 	bool _isEnd() const;
+	bool _isDelayEnough(LARGE_INTEGER nNow);
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1118,7 +1147,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1157,7 +1186,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1195,7 +1224,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1243,11 +1272,10 @@ public:
 protected:
 	Action *	m_FirstAction;
 	Action *	m_SecondAction;
-	bool		m_bFirstFinished;
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1269,7 +1297,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1284,7 +1312,7 @@ public:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1302,7 +1330,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1324,7 +1352,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1342,7 +1370,7 @@ protected:
 
 protected:
 	virtual void _init() override;
-	virtual bool _exec(LARGE_INTEGER nNow) override;
+	virtual void _exec(LARGE_INTEGER nNow) override;
 	virtual void _reset() override;
 };
 
@@ -1430,6 +1458,10 @@ public:
 	void start();
 	// 停止定时器
 	void stop();
+	// 进入等待状态
+	void wait();
+	// 唤醒
+	void notify();
 	// 定时器是否正在运行
 	bool isRunning();
 	// 设置间隔时间
@@ -1457,14 +1489,15 @@ public:
 	static void clearAllTimers();
 
 	// 继续绑定在场景上的所有定时器
-	static void startAllSceneTimers(Scene* scene);
+	static void notifyAllSceneTimers(Scene* scene);
 	// 停止绑定在场景上的所有定时器
-	static void stopAllSceneTimers(Scene* scene);
+	static void waitAllSceneTimers(Scene* scene);
 	// 清除绑定在场景上的所有定时器
 	static void clearAllSceneTimers(Scene* scene);
 
 protected:
 	bool			m_bRunning;
+	bool			m_bWaiting;
 	TString			m_sName;
 	TIMER_CALLBACK	m_callback;
 	LARGE_INTEGER	m_nLast;
@@ -1511,9 +1544,9 @@ public:
 	static void clearAllActions();
 
 	// 继续绑定在场景上的动作
-	static void startAllSceneActions(Scene* scene);
+	static void notifyAllSceneActions(Scene* scene);
 	// 暂停绑定在场景上的动作
-	static void pauseAllSceneActions(Scene* scene);
+	static void waitAllSceneActions(Scene* scene);
 	// 停止绑定在场景上的动作
 	static void stopAllSceneActions(Scene* scene);