diff --git a/core/base/Action.hpp b/core/base/Action.hpp
index f47c17ee..e7505422 100644
--- a/core/base/Action.hpp
+++ b/core/base/Action.hpp
@@ -21,6 +21,7 @@
 #pragma once
 #include "base.h"
 #include "time.h"
+#include "IntrusiveList.hpp"
 
 namespace easy2d
 {
@@ -28,6 +29,7 @@ namespace easy2d
 
 	class Action
 		: public RefCounter
+		, public IntrusiveItem<spAction>
 	{
 		E2D_DISABLE_COPY(Action);
 
@@ -42,18 +44,18 @@ namespace easy2d
 		virtual ~Action() {}
 
 		// 获取动作运行状态
-		inline bool IsRunning() { return running_; }
+		virtual bool IsRunning() { return running_; }
 
 		// 继续动作
-		inline void Resume() { running_ = true; }
+		virtual void Resume() { running_ = true; }
 
 		// 暂停动作
-		inline void Pause() { running_ = false; }
+		virtual void Pause() { running_ = false; }
 
 		// 停止动作
-		inline void Stop() { done_ = true; }
+		virtual void Stop() { done_ = true; }
 
-		inline bool IsDone() const { return done_; }
+		virtual bool IsDone() const { return done_; }
 
 		// 获取动作的拷贝
 		virtual spAction Clone() const = 0;
diff --git a/core/base/ActionCombined.cpp b/core/base/ActionCombined.cpp
index f1a4c1a3..83fe5812 100644
--- a/core/base/ActionCombined.cpp
+++ b/core/base/ActionCombined.cpp
@@ -80,12 +80,6 @@ namespace easy2d
 	{
 		Action::Update(target, dt);
 
-		if (times_ == total_times_)
-		{
-			this->Stop();
-			return;
-		}
-
 		if (action_)
 		{
 			action_->Update(target, dt);
@@ -97,6 +91,11 @@ namespace easy2d
 				Action::Reset();
 				action_->Reset();
 			}
+
+			if (times_ == total_times_)
+			{
+				this->Stop();
+			}
 		}
 		else
 		{
@@ -112,6 +111,11 @@ namespace easy2d
 		times_ = 0;
 	}
 
+	bool Loop::IsRunning()
+	{
+		return Action::IsRunning() && times_ != total_times_;
+	}
+
 
 	//-------------------------------------------------------
 	// Sequence
@@ -142,7 +146,7 @@ namespace easy2d
 	{
 		Action::Update(target, dt);
 
-		auto &action = actions_[action_index_];
+		auto& action = actions_[action_index_];
 		action->Update(target, dt);
 
 		if (action->IsDone())
diff --git a/core/base/ActionCombined.h b/core/base/ActionCombined.h
index bd6f3690..ca98c3d6 100644
--- a/core/base/ActionCombined.h
+++ b/core/base/ActionCombined.h
@@ -46,6 +46,8 @@ namespace easy2d
 		// 重置动作
 		virtual void Reset() override;
 
+		virtual bool IsRunning() override;
+
 	protected:
 		// 初始化动作
 		virtual void Init(Node* target) override;
@@ -66,11 +68,13 @@ namespace easy2d
 	{
 		E2D_DISABLE_COPY(Sequence);
 
+		using Actions = std::vector<spAction>;
+
 	public:
 		Sequence();
 
 		explicit Sequence(
-			const Actions& actions	/* 动作列表 */
+			Actions const& actions	/* 动作列表 */
 		);
 
 		virtual ~Sequence();
@@ -113,6 +117,8 @@ namespace easy2d
 	{
 		E2D_DISABLE_COPY(Spawn);
 
+		using Actions = std::vector<spAction>;
+
 	public:
 		Spawn();
 
diff --git a/core/base/ActionManager.cpp b/core/base/ActionManager.cpp
index ab94f7d8..d8c3a8c8 100644
--- a/core/base/ActionManager.cpp
+++ b/core/base/ActionManager.cpp
@@ -25,58 +25,40 @@ namespace easy2d
 {
 	void ActionManager::UpdateActions(Node* target, Duration const& dt)
 	{
-		if (actions_.empty())
+		if (actions_.IsEmpty())
 			return;
 
-		std::vector<spAction> currActions;
-		currActions.reserve(actions_.size());
-		std::copy_if(
-			actions_.begin(),
-			actions_.end(),
-			std::back_inserter(currActions),
-			[](spAction action) { return action->IsRunning() && !action->IsDone(); }
-		);
-
-		// 遍历所有正在运行的动作
-		for (const auto& action : currActions)
-			action->Update(target, dt);
-
-		// 清除完成的动作
-		for (auto iter = actions_.begin(); iter != actions_.end();)
+		spAction next;
+		for (auto action = actions_.First(); action; action = next)
 		{
-			if ((*iter)->IsDone())
-			{
-				iter = actions_.erase(iter);
-			}
-			else
-			{
-				++iter;
-			}
+			next = action->Next();
+
+			if (action->IsRunning())
+				action->Update(target, dt);
+
+			if (action->IsDone())
+				actions_.Remove(action);
 		}
 	}
 
-	void ActionManager::RunAction(spAction const& action)
+	void ActionManager::AddAction(spAction const& action)
 	{
 		if (!action)
 			logs::Warningln("Node::RunAction failed, action is nullptr");
 
 		if (action)
 		{
-			auto iter = std::find(actions_.begin(), actions_.end(), action);
-			if (iter == actions_.end())
-			{
-				action->Start();
-				actions_.push_back(action);
-			}
+			action->Start();
+			actions_.Append(action);
 		}
 	}
 
 	void ActionManager::ResumeAllActions()
 	{
-		if (actions_.empty())
+		if (actions_.IsEmpty())
 			return;
 
-		for (const auto& action : actions_)
+		for (auto& action = actions_.First(); action; action = action->Next())
 		{
 			action->Resume();
 		}
@@ -84,10 +66,10 @@ namespace easy2d
 
 	void ActionManager::PauseAllActions()
 	{
-		if (actions_.empty())
+		if (actions_.IsEmpty())
 			return;
 
-		for (const auto& action : actions_)
+		for (auto& action = actions_.First(); action; action = action->Next())
 		{
 			action->Pause();
 		}
@@ -95,16 +77,16 @@ namespace easy2d
 
 	void ActionManager::StopAllActions()
 	{
-		if (actions_.empty())
+		if (actions_.IsEmpty())
 			return;
 
-		for (const auto& action : actions_)
+		for (auto& action = actions_.First(); action; action = action->Next())
 		{
 			action->Stop();
 		}
 	}
 
-	const Actions& ActionManager::GetAllActions() const
+	const ActionManager::Actions& ActionManager::GetAllActions() const
 	{
 		return actions_;
 	}
diff --git a/core/base/ActionManager.h b/core/base/ActionManager.h
index d37e72e0..015f7a8c 100644
--- a/core/base/ActionManager.h
+++ b/core/base/ActionManager.h
@@ -25,9 +25,11 @@ namespace easy2d
 {
 	class ActionManager
 	{
+		using Actions = IntrusiveList<spAction>;
+
 	public:
 		// 执行动作
-		void RunAction(
+		void AddAction(
 			spAction const& action
 		);
 
@@ -41,7 +43,7 @@ namespace easy2d
 		void StopAllActions();
 
 		// 获取所有动作
-		const Actions& GetAllActions() const;
+		Actions const& GetAllActions() const;
 
 	protected:
 		void UpdateActions(Node* target, Duration const& dt);
diff --git a/core/base/Animation.cpp b/core/base/Animation.cpp
index 63a74ece..ac934cad 100644
--- a/core/base/Animation.cpp
+++ b/core/base/Animation.cpp
@@ -192,7 +192,7 @@ namespace easy2d
 		return interval_;
 	}
 
-	const Images& Animation::GetFrames() const
+	Animation::Images const& Animation::GetFrames() const
 	{
 		return frames_;
 	}
diff --git a/core/base/Animation.h b/core/base/Animation.h
index 830601c0..96d8c207 100644
--- a/core/base/Animation.h
+++ b/core/base/Animation.h
@@ -29,6 +29,8 @@ namespace easy2d
 	{
 		E2D_DISABLE_COPY(Animation);
 
+		using Images = std::vector< spImage >;
+
 	public:
 		Animation();
 
@@ -61,7 +63,7 @@ namespace easy2d
 		Duration const& GetInterval() const;
 
 		// 获取关键帧
-		const Images& GetFrames() const;
+		Images const& GetFrames() const;
 
 		// 设置每一帧的时间间隔
 		void SetInterval(
diff --git a/core/base/IntrusiveList.hpp b/core/base/IntrusiveList.hpp
new file mode 100644
index 00000000..b7cd3013
--- /dev/null
+++ b/core/base/IntrusiveList.hpp
@@ -0,0 +1,231 @@
+// Copyright (c) 2016-2018 Easy2D - Nomango
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma once
+#include "macros.h"
+#include <functional>
+
+namespace easy2d
+{
+	template <typename T>
+	class IntrusiveList
+	{
+		T first_;
+		T last_;
+		int size_;
+
+	public:
+		IntrusiveList() : first_(), last_(), size_(0) {}
+
+		~IntrusiveList() { Clear(); }
+
+		T const& First() const { return first_; }
+
+		T& First() { return first_; }
+
+		T const& Last() const { return last_; }
+
+		T& Last() { return last_; }
+
+		bool IsEmpty() const { return size_ == 0; }
+
+		int Size() const { return size_; }
+
+		void Append(T child)
+		{
+			child->prev_ = last_;
+			child->next_ = nullptr;
+
+			if (first_)
+			{
+				last_->next_ = child;
+			}
+			else
+			{
+				first_ = child;
+			}
+
+			last_ = child;
+			++size_;
+
+#ifdef E2D_DEBUG
+			Check();
+#endif
+		}
+
+		void Prepend(T child)
+		{
+			child->prev_ = nullptr;
+			child->next_ = first_;
+
+			if (first_)
+			{
+				first_->prev_ = child;
+			}
+			else
+			{
+				last_ = child;
+			}
+
+			first_ = child;
+			++size_;
+
+#ifdef E2D_DEBUG
+			Check();
+#endif
+		}
+
+		void Remove(T child)
+		{
+#ifdef E2D_DEBUG
+			T tmp = first_;
+			while (tmp != child)
+			{
+				if (tmp == last_)
+					throw std::logic_error("The node to be removed is not in this list");
+				tmp = tmp->next_;
+			}
+#endif
+
+			if (child->next_)
+			{
+				child->next_->prev_ = child->prev_;
+			}
+			else
+			{
+				last_ = child->prev_;
+			}
+
+			if (child->prev_)
+			{
+				child->prev_->next_ = child->next_;
+			}
+			else
+			{
+				first_ = child->next_;
+			}
+
+			child->prev_ = nullptr;
+			child->next_ = nullptr;
+			--size_;
+
+#ifdef E2D_DEBUG
+			Check();
+#endif
+		}
+
+		void Insert(T child, T before)
+		{
+			if (before->prev_)
+				before->prev_->next_ = child;
+			else
+				first_ = child;
+
+			child->prev_ = before->prev_;
+			child->next_ = before;
+			before->prev_ = child;
+			++size_;
+
+#ifdef E2D_DEBUG
+			Check();
+#endif
+		}
+
+		void Clear()
+		{
+			T p = first_;
+			while (p)
+			{
+				T tmp = p;
+				p = p->next_;
+				if (tmp)
+				{
+					tmp->next_ = nullptr;
+					tmp->prev_ = nullptr;
+				}
+			}
+			first_ = nullptr;
+			last_ = nullptr;
+			size_ = 0;
+		}
+
+		void Sort(std::function<bool(T const&, T const&)> func)
+		{
+#ifdef E2D_DEBUG
+			Check();
+#endif
+		}
+
+#ifdef E2D_DEBUG
+
+		void Check()
+		{
+			if (!first_)
+				return;
+
+			int pos = 0;
+			T p = first_;
+			T tmp = p;
+			do
+			{
+				tmp = p;
+				p = p->next_;
+				++pos;
+
+				if (p)
+				{
+					if (p->prev_ != tmp)
+						throw std::logic_error("Check list failed");
+				}
+				else
+				{
+					if (tmp != last_)
+						throw std::logic_error("Check list failed");
+				}
+			} while (p);
+
+			if (pos != size_)
+				throw std::logic_error("Check list failed");
+		}
+
+#endif
+	};
+
+	template <typename T>
+	class IntrusiveItem
+	{
+		T prev_;
+		T next_;
+
+		template <typename U>
+		friend class IntrusiveList;
+
+	public:
+		IntrusiveItem() : prev_(), next_() {}
+
+		T const& Prev() const { return prev_; }
+
+		T& Prev() { return prev_; }
+
+		T const& Next() const { return next_; }
+
+		T& Next() { return next_; }
+	};
+}
diff --git a/core/base/Node.cpp b/core/base/Node.cpp
index 9d0bf9cd..8276512e 100644
--- a/core/base/Node.cpp
+++ b/core/base/Node.cpp
@@ -77,7 +77,7 @@ namespace easy2d
 			graphics->PushClip(final_matrix_, transform_.size);
 		}
 
-		if (children_.empty())
+		if (children_.IsEmpty())
 		{
 			graphics->SetTransform(final_matrix_);
 			OnDraw();
@@ -87,20 +87,17 @@ namespace easy2d
 			// 子节点排序
 			if (dirty_sort_)
 			{
-				std::sort(
-					children_.begin(),
-					children_.end(),
+				children_.Sort(
 					[](spNode const& n1, spNode const& n2) { return n1->GetOrder() < n2->GetOrder(); }
 				);
 
 				dirty_sort_ = false;
 			}
 
-			size_t i;
-			for (i = 0; i < children_.size(); ++i)
+			spNode child = children_.First();
+			for (spNode next; child; child = next)
 			{
-				auto child = children_[i];
-				// 访问 Order 小于零的节点
+				next = child->Next();
 				if (child->GetOrder() < 0)
 				{
 					child->Visit();
@@ -114,9 +111,11 @@ namespace easy2d
 			graphics->SetTransform(final_matrix_);
 			OnDraw();
 
-			// 访问剩余节点
-			for (; i < children_.size(); ++i)
-				children_[i]->Visit();
+			for (spNode next; child; child = next)
+			{
+				next = child->Next();
+				child->Visit();
+			}
 		}
 
 		if (clip_enabled_)
@@ -127,7 +126,7 @@ namespace easy2d
 
 	void Node::Update(Duration const& dt)
 	{
-		if (children_.empty())
+		if (children_.IsEmpty())
 		{
 			OnUpdate(dt);
 			UpdateActions(this, dt);
@@ -136,13 +135,13 @@ namespace easy2d
 		}
 		else
 		{
-			size_t i;
-			for (i = 0; i < children_.size(); ++i)
+			// 访问 Order 小于零的节点
+			spNode child = children_.First();
+			for (spNode next; child; child = next)
 			{
-				auto child = children_[i];
-				// 访问 Order 小于零的节点
 				if (child->GetOrder() < 0)
 				{
+					next = child->Next();
 					child->Update(dt);
 				}
 				else
@@ -156,9 +155,11 @@ namespace easy2d
 			UpdateTasks(dt);
 			UpdateTransform();
 
-			// 访问剩余节点
-			for (; i < children_.size(); ++i)
-				children_[i]->Update(dt);
+			for (spNode next; child; child = next)
+			{
+				next = child->Next();
+				child->Update(dt);
+			}
 		}
 	}
 
@@ -171,7 +172,7 @@ namespace easy2d
 				devices::Graphics::Instance()->DrawGeometry(border_, border_color_, 1.f, 1.5f);
 			}
 
-			for (const auto& child : children_)
+			for (auto& child = children_.First(); child; child = child->Next())
 			{
 				child->DrawBorder();
 			}
@@ -202,7 +203,7 @@ namespace easy2d
 			devices::Graphics::Instance()->CreateRectGeometry(final_matrix_, transform_.size, &border_)
 		);
 
-		for (auto& child : children_)
+		for (auto& child = children_.First(); child; child = child->Next())
 		{
 			child->dirty_transform_ = true;
 		}
@@ -212,8 +213,12 @@ namespace easy2d
 	{
 		if (visible_)
 		{
-			for (auto riter = children_.crbegin(); riter != children_.crend(); ++riter)
-				handled = (*riter)->Dispatch(e, handled);
+			spNode prev;
+			for (auto& child = children_.Last(); child; child = prev)
+			{
+				prev = child->Prev();
+				handled = child->Dispatch(e, handled);
+			}
 
 			auto handler = dynamic_cast<MouseEventHandler*>(this);
 			if (handler)
@@ -227,8 +232,12 @@ namespace easy2d
 	{
 		if (visible_)
 		{
-			for (auto riter = children_.crbegin(); riter != children_.crend(); ++riter)
-				handled = (*riter)->Dispatch(e, handled);
+			spNode prev;
+			for (auto& child = children_.Last(); child; child = prev)
+			{
+				prev = child->Prev();
+				handled = child->Dispatch(e, handled);
+			}
 
 			auto handler = dynamic_cast<KeyEventHandler*>(this);
 			if (handler)
@@ -244,7 +253,7 @@ namespace easy2d
 		{
 			display_opacity_ = real_opacity_ * parent_->display_opacity_;
 		}
-		for (const auto& child : children_)
+		for (auto& child = children_.First(); child; child = child->Next())
 		{
 			child->UpdateOpacity();
 		}
@@ -547,7 +556,7 @@ namespace easy2d
 				}
 			}
 
-			children_.push_back(child);
+			children_.Append(child);
 			child->SetOrder(order);
 			child->parent_ = this;
 
@@ -573,14 +582,13 @@ namespace easy2d
 		return parent_;
 	}
 
-	Nodes Node::GetChildren(const String& name) const
+	Node::Nodes Node::GetChildren(const String& name) const
 	{
 		Nodes children;
 		size_t hash_code = std::hash<String>{}(name);
 
-		for (const auto& child : children_)
+		for (auto child = children_.First(); child != children_.Last(); child = child->Next())
 		{
-			// 不同的名称可能会有相同的 Hash 值，但是先比较 Hash 可以提升搜索速度
 			if (child->hash_name_ == hash_code && child->name_ == name)
 			{
 				children.push_back(child);
@@ -593,9 +601,8 @@ namespace easy2d
 	{
 		size_t hash_code = std::hash<String>{}(name);
 
-		for (const auto& child : children_)
+		for (auto child = children_.First(); child != children_.Last(); child = child->Next())
 		{
-			// 不同的名称可能会有相同的 Hash 值，但是先比较 Hash 可以提升搜索速度
 			if (child->hash_name_ == hash_code && child->name_ == name)
 			{
 				return child;
@@ -604,14 +611,14 @@ namespace easy2d
 		return nullptr;
 	}
 
-	const std::vector<spNode>& Node::GetAllChildren() const
+	Node::Children const & Node::GetChildren() const
 	{
 		return children_;
 	}
 
 	int Node::GetChildrenCount() const
 	{
-		return static_cast<int>(children_.size());
+		return children_.Size();
 	}
 
 	void Node::RemoveFromParent()
@@ -627,49 +634,40 @@ namespace easy2d
 		if (!child)
 			logs::Warningln("Node::RemoveChild failed, child is nullptr");
 
-		if (children_.empty())
+		if (children_.IsEmpty())
 		{
 			return false;
 		}
 
 		if (child)
 		{
-			auto iter = std::find(children_.begin(), children_.end(), child);
-			if (iter != children_.end())
-			{
-				children_.erase(iter);
-				child->parent_ = nullptr;
-				return true;
-			}
+			children_.Remove(child);
+			return true;
 		}
 		return false;
 	}
 
 	void Node::RemoveChildren(const String& child_name)
 	{
-		if (children_.empty())
+		if (children_.IsEmpty())
 		{
 			return;
 		}
 
 		size_t hash_code = std::hash<String>{}(child_name);
-		for (auto iter = children_.begin(); iter != children_.end();)
+		spNode next;
+		for (auto& child = children_.First(); child; child = next)
 		{
-			if ((*iter)->hash_name_ == hash_code && (*iter)->name_ == child_name)
-			{
-				(*iter)->parent_ = nullptr;
-				iter = children_.erase(iter);
-			}
-			else
-			{
-				++iter;
-			}
+			next = child->Next();
+
+			if (child->hash_name_ == hash_code && child->name_ == child_name)
+				children_.Remove(child);
 		}
 	}
 
 	void Node::RemoveAllChildren()
 	{
-		children_.clear();
+		children_.Clear();
 	}
 
 	bool Node::ContainsPoint(const Point& point)
diff --git a/core/base/Node.h b/core/base/Node.h
index 3d429555..3ccf10a3 100644
--- a/core/base/Node.h
+++ b/core/base/Node.h
@@ -21,10 +21,11 @@
 #pragma once
 #include "base.h"
 #include "time.h"
-#include "ActionManager.h"
-#include "TaskManager.h"
 #include "KeyEvent.h"
 #include "MouseEvent.h"
+#include "ActionManager.h"
+#include "TaskManager.h"
+#include "IntrusiveList.hpp"
 #include "../math/Transform.hpp"
 #include "../math/Matrix.hpp"
 
@@ -37,6 +38,7 @@ namespace easy2d
 		: public RefCounter
 		, public ActionManager
 		, public TaskManager
+		, public IntrusiveItem<spNode>
 	{
 		friend class Game;
 		friend class Scene;
@@ -44,6 +46,9 @@ namespace easy2d
 
 		E2D_DISABLE_COPY(Node);
 
+		using Nodes = std::vector< spNode >;
+		using Children = IntrusiveList<spNode>;
+
 	public:
 		Node();
 
@@ -310,8 +315,8 @@ namespace easy2d
 			const String& name
 		) const;
 
-		// 获取所有子节点
-		const Nodes& GetAllChildren() const;
+		// 获取全部子节点
+		Children const& GetChildren() const;
 
 		// 获取子节点数量
 		int GetChildrenCount() const;
@@ -372,7 +377,7 @@ namespace easy2d
 		bool				dirty_transform_;
 		Node*				parent_;
 		Color				border_color_;
-		Nodes				children_;
+		Children			children_;
 		ID2D1Geometry*		border_;
 		math::Transform		transform_;
 		math::Matrix		initial_matrix_;
diff --git a/core/base/Task.h b/core/base/Task.h
index bba29764..36410a2a 100644
--- a/core/base/Task.h
+++ b/core/base/Task.h
@@ -21,6 +21,7 @@
 #pragma once
 #include "base.h"
 #include "time.h"
+#include "IntrusiveList.hpp"
 #include <functional>
 
 namespace easy2d
@@ -30,6 +31,7 @@ namespace easy2d
     // 定时任务
 	class Task
 		: public RefCounter
+		, public IntrusiveItem<spTask>
 	{
 		friend class TaskManager;
 
diff --git a/core/base/TaskManager.cpp b/core/base/TaskManager.cpp
index 4eef63ec..e2c048b9 100644
--- a/core/base/TaskManager.cpp
+++ b/core/base/TaskManager.cpp
@@ -19,25 +19,42 @@
 // THE SOFTWARE.
 
 #include "TaskManager.h"
+#include "logs.h"
 
 namespace easy2d
 {
+	void TaskManager::UpdateTasks(Duration const& dt)
+	{
+		if (tasks_.IsEmpty())
+			return;
+
+		spTask next;
+		for (auto task = tasks_.First(); task; task = next)
+		{
+			next = task->Next();
+
+			task->Update(dt);
+
+			if (task->stopped_)
+				tasks_.Remove(task);
+		}
+	}
+
 	void TaskManager::AddTask(spTask const& task)
 	{
+		if (!task)
+			logs::Warningln("Node::AddTask failed, action is nullptr");
+
 		if (task)
 		{
-			auto iter = std::find(tasks_.begin(), tasks_.end(), task);
-			if (iter == tasks_.end())
-			{
-				task->Reset();
-				tasks_.push_back(task);
-			}
+			task->Reset();
+			tasks_.Append(task);
 		}
 	}
 
 	void TaskManager::StopTasks(const String& name)
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			if (task->GetName() == name)
 			{
@@ -48,7 +65,7 @@ namespace easy2d
 
 	void TaskManager::StartTasks(const String& name)
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			if (task->GetName() == name)
 			{
@@ -59,7 +76,7 @@ namespace easy2d
 
 	void TaskManager::RemoveTasks(const String& name)
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			if (task->GetName() == name)
 			{
@@ -70,7 +87,7 @@ namespace easy2d
 
 	void TaskManager::StopAllTasks()
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			task->Stop();
 		}
@@ -78,7 +95,7 @@ namespace easy2d
 
 	void TaskManager::StartAllTasks()
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			task->Start();
 		}
@@ -86,46 +103,14 @@ namespace easy2d
 
 	void TaskManager::RemoveAllTasks()
 	{
-		for (const auto& task : tasks_)
+		for (auto& task = tasks_.First(); task; task = task->Next())
 		{
 			task->stopped_ = true;
 		}
 	}
 
-	const Tasks & TaskManager::GetAllTasks() const
+	const TaskManager::Tasks & TaskManager::GetAllTasks() const
 	{
 		return tasks_;
 	}
-
-	void TaskManager::UpdateTasks(Duration const& dt)
-	{
-		if (tasks_.empty())
-			return;
-
-		std::vector<spTask> currTasks;
-		currTasks.reserve(tasks_.size());
-		std::copy_if(
-			tasks_.begin(),
-			tasks_.end(),
-			std::back_inserter(currTasks),
-			[](spTask const& task) { return !task->stopped_; }
-		);
-
-		// 遍历就绪的任务
-		for (const auto& task : currTasks)
-			task->Update(dt);
-
-		// 清除结束的任务
-		for (auto iter = tasks_.begin(); iter != tasks_.end();)
-		{
-			if ((*iter)->stopped_)
-			{
-				iter = tasks_.erase(iter);
-			}
-			else
-			{
-				++iter;
-			}
-		}
-	}
 }
diff --git a/core/base/TaskManager.h b/core/base/TaskManager.h
index e449dd18..3fb7c7cf 100644
--- a/core/base/TaskManager.h
+++ b/core/base/TaskManager.h
@@ -25,6 +25,8 @@ namespace easy2d
 {
 	class TaskManager
 	{
+		using Tasks = IntrusiveList<spTask>;
+
 	public:
 		// 添加任务
 		void AddTask(
diff --git a/core/base/base.h b/core/base/base.h
index ad4b47b8..d8d9f50f 100644
--- a/core/base/base.h
+++ b/core/base/base.h
@@ -81,12 +81,6 @@ namespace easy2d
 	E2D_DECLARE_NS_SMART_PTR(ui, Button);
 	E2D_DECLARE_NS_SMART_PTR(ui, Menu);
 
-	using Images = ::std::vector< spImage >;
-	using Nodes = ::std::vector< spNode >;
-	using Actions = ::std::vector< spAction >;
-	using Tasks = ::std::vector< spTask >;
-
-
 	template<class Interface>
 	inline void SafeRelease(Interface*& p)
 	{
diff --git a/core/base/logs.h b/core/base/logs.h
index fce3d466..0025b078 100644
--- a/core/base/logs.h
+++ b/core/base/logs.h
@@ -27,7 +27,7 @@
 #include <stdexcept>
 
 #ifndef E2D_LOG
-#	if defined(DEBUG) || defined(_DEBUG)
+#	ifdef E2D_DEBUG
 #		define E2D_LOG(format, ...) easy2d::logs::Println(format, ##__VA_ARGS__)
 #	else
 #		define E2D_LOG ((void)0)
diff --git a/core/base/macros.h b/core/base/macros.h
index b6a8659c..0057a3c3 100644
--- a/core/base/macros.h
+++ b/core/base/macros.h
@@ -68,6 +68,14 @@
 #	define INITGUID
 #endif
 
+#if defined(DEBUG) || defined(_DEBUG)
+#	ifndef E2D_DEBUG
+#		define E2D_DEBUG
+#	endif
+#else
+#	undef E2D_DEBUG
+#endif
+
 
 // Windows Header Files
 #include <windows.h>
diff --git a/project/vs2013/Easy2D.vcxproj b/project/vs2013/Easy2D.vcxproj
index 102fd657..c607b9cc 100644
--- a/project/vs2013/Easy2D.vcxproj
+++ b/project/vs2013/Easy2D.vcxproj
@@ -34,6 +34,7 @@
     <ClInclude Include="..\..\core\base\Game.h" />
     <ClInclude Include="..\..\core\base\Image.h" />
     <ClInclude Include="..\..\core\base\Input.h" />
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp" />
     <ClInclude Include="..\..\core\base\IntrusivePtr.hpp" />
     <ClInclude Include="..\..\core\base\KeyEvent.h" />
     <ClInclude Include="..\..\core\base\logs.h" />
diff --git a/project/vs2013/Easy2D.vcxproj.filters b/project/vs2013/Easy2D.vcxproj.filters
index 402decff..e2834b4e 100644
--- a/project/vs2013/Easy2D.vcxproj.filters
+++ b/project/vs2013/Easy2D.vcxproj.filters
@@ -155,6 +155,9 @@
     <ClInclude Include="..\..\core\base\Font.hpp">
       <Filter>base</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp">
+      <Filter>base</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="base">
diff --git a/project/vs2015/Easy2D.vcxproj b/project/vs2015/Easy2D.vcxproj
index 6363f073..f7a4b810 100644
--- a/project/vs2015/Easy2D.vcxproj
+++ b/project/vs2015/Easy2D.vcxproj
@@ -34,6 +34,7 @@
     <ClInclude Include="..\..\core\base\Game.h" />
     <ClInclude Include="..\..\core\base\Image.h" />
     <ClInclude Include="..\..\core\base\Input.h" />
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp" />
     <ClInclude Include="..\..\core\base\IntrusivePtr.hpp" />
     <ClInclude Include="..\..\core\base\KeyEvent.h" />
     <ClInclude Include="..\..\core\base\logs.h" />
diff --git a/project/vs2015/Easy2D.vcxproj.filters b/project/vs2015/Easy2D.vcxproj.filters
index 402decff..e2834b4e 100644
--- a/project/vs2015/Easy2D.vcxproj.filters
+++ b/project/vs2015/Easy2D.vcxproj.filters
@@ -155,6 +155,9 @@
     <ClInclude Include="..\..\core\base\Font.hpp">
       <Filter>base</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp">
+      <Filter>base</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="base">
diff --git a/project/vs2017/Easy2D.vcxproj b/project/vs2017/Easy2D.vcxproj
index b1cfa82f..7ea6da5d 100644
--- a/project/vs2017/Easy2D.vcxproj
+++ b/project/vs2017/Easy2D.vcxproj
@@ -34,6 +34,7 @@
     <ClInclude Include="..\..\core\base\Game.h" />
     <ClInclude Include="..\..\core\base\Image.h" />
     <ClInclude Include="..\..\core\base\Input.h" />
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp" />
     <ClInclude Include="..\..\core\base\IntrusivePtr.hpp" />
     <ClInclude Include="..\..\core\base\KeyEvent.h" />
     <ClInclude Include="..\..\core\base\logs.h" />
diff --git a/project/vs2017/Easy2D.vcxproj.filters b/project/vs2017/Easy2D.vcxproj.filters
index 402decff..e2834b4e 100644
--- a/project/vs2017/Easy2D.vcxproj.filters
+++ b/project/vs2017/Easy2D.vcxproj.filters
@@ -155,6 +155,9 @@
     <ClInclude Include="..\..\core\base\Font.hpp">
       <Filter>base</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\core\base\IntrusiveList.hpp">
+      <Filter>base</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="base">