diff --git a/src/core/ActionGroup.h b/src/core/ActionGroup.h
index 3d097859..e2925d79 100644
--- a/src/core/ActionGroup.h
+++ b/src/core/ActionGroup.h
@@ -36,22 +36,22 @@ namespace easy2d
 		virtual ~Loop();
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 		// 重置动作
-		virtual void Reset() override;
+		void Reset() override;
 
-		virtual bool IsRunning() override;
+		bool IsRunning() override;
 
 	protected:
 		// 初始化动作
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 		// 更新动作
-		virtual void Update(Node* target, Duration dt) override;
+		void Update(Node* target, Duration dt) override;
 
 	protected:
 		ActionPtr	action_;
@@ -84,20 +84,20 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 		// 重置动作
-		virtual void Reset() override;
+		void Reset() override;
 
 	protected:
 		// 初始化动作
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 		// 更新动作
-		virtual void Update(Node* target, Duration dt) override;
+		void Update(Node* target, Duration dt) override;
 
 	protected:
 		UINT action_index_;
@@ -129,20 +129,20 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const;
 
 		// 重置动作
-		virtual void Reset() override;
+		void Reset() override;
 
 	protected:
 		// 初始化动作
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 		// 更新动作
-		virtual void Update(Node* target, Duration dt) override;
+		void Update(Node* target, Duration dt) override;
 
 	protected:
 		Array<ActionPtr> actions_;
diff --git a/src/core/ActionHelper.h b/src/core/ActionHelper.h
index 9aa26df3..f09a27f9 100644
--- a/src/core/ActionHelper.h
+++ b/src/core/ActionHelper.h
@@ -21,6 +21,7 @@
 #pragma once
 #include "ActionGroup.h"
 #include "ActionTween.h"
+#include "Animation.h"
 #include "Delay.h"
 
 namespace easy2d
@@ -38,6 +39,7 @@ namespace easy2d
 			return base;
 		}
 
+	private:
 		ActionPtr	base;
 		int			loop;
 	};
@@ -61,6 +63,7 @@ namespace easy2d
 			return base;
 		}
 
+	private:
 		ActionTweenPtr	base;
 		Duration		dur;
 		int				loop;
@@ -170,6 +173,12 @@ namespace easy2d
 			return TweenActionHelper(new easy2d::PathAction(0, geo, rotating, start, end));
 		}
 
+		static inline TweenActionHelper
+			Animation(FramesPtr const& frames)
+		{
+			return TweenActionHelper(new easy2d::Animation(0, frames));
+		}
+
 		static inline ActionHelper
 			Delay(Duration dur)
 		{
diff --git a/src/core/ActionManager.cpp b/src/core/ActionManager.cpp
index 97dba9be..5b03a7b7 100644
--- a/src/core/ActionManager.cpp
+++ b/src/core/ActionManager.cpp
@@ -25,7 +25,7 @@ namespace easy2d
 {
 	void ActionManager::UpdateActions(Node* target, Duration dt)
 	{
-		if (actions_.IsEmpty())
+		if (actions_.IsEmpty() || !target)
 			return;
 
 		ActionPtr next;
diff --git a/src/core/ActionTween.cpp b/src/core/ActionTween.cpp
index 8889e32b..5039847f 100644
--- a/src/core/ActionTween.cpp
+++ b/src/core/ActionTween.cpp
@@ -223,16 +223,13 @@ namespace easy2d
 
 	void MoveBy::UpdateStep(Node* target, float step)
 	{
-		if (target)
-		{
-			Point diff = target->GetPosition() - prev_pos_;
-			start_pos_ = start_pos_ + diff;
+		Point diff = target->GetPosition() - prev_pos_;
+		start_pos_ = start_pos_ + diff;
 
-			Point new_pos = start_pos_ + (delta_pos_ * step);
-			target->SetPosition(new_pos);
+		Point new_pos = start_pos_ + (delta_pos_ * step);
+		target->SetPosition(new_pos);
 
-			prev_pos_ = new_pos;
-		}
+		prev_pos_ = new_pos;
 	}
 
 	ActionPtr MoveBy::Clone() const
@@ -297,21 +294,18 @@ namespace easy2d
 
 	void JumpBy::UpdateStep(Node* target, float step)
 	{
-		if (target)
-		{
-			float frac = fmod(step * jumps_, 1.f);
-			float x = delta_pos_.x * step;
-			float y = height_ * 4 * frac * (1 - frac);
-			y += delta_pos_.y * step;
+		float frac = fmod(step * jumps_, 1.f);
+		float x = delta_pos_.x * step;
+		float y = height_ * 4 * frac * (1 - frac);
+		y += delta_pos_.y * step;
 
-			Point diff = target->GetPosition() - prev_pos_;
-			start_pos_ = diff + start_pos_;
+		Point diff = target->GetPosition() - prev_pos_;
+		start_pos_ = diff + start_pos_;
 
-			Point new_pos = start_pos_ + Point(x, y);
-			target->SetPosition(new_pos);
+		Point new_pos = start_pos_ + Point(x, y);
+		target->SetPosition(new_pos);
 
-			prev_pos_ = new_pos;
-		}
+		prev_pos_ = new_pos;
 	}
 
 	JumpTo::JumpTo(Duration duration, Point const& pos, float height, int jumps, EaseFunc func)
@@ -363,10 +357,7 @@ namespace easy2d
 
 	void ScaleBy::UpdateStep(Node* target, float step)
 	{
-		if (target)
-		{
-			target->SetScale(start_scale_x_ + delta_x_ * step, start_scale_y_ + delta_y_ * step);
-		}
+		target->SetScale(start_scale_x_ + delta_x_ * step, start_scale_y_ + delta_y_ * step);
 	}
 
 	ActionPtr ScaleBy::Clone() const
@@ -428,10 +419,7 @@ namespace easy2d
 
 	void OpacityBy::UpdateStep(Node* target, float step)
 	{
-		if (target)
-		{
-			target->SetOpacity(start_val_ + delta_val_ * step);
-		}
+		target->SetOpacity(start_val_ + delta_val_ * step);
 	}
 
 	ActionPtr OpacityBy::Clone() const
@@ -494,10 +482,7 @@ namespace easy2d
 
 	void RotateBy::UpdateStep(Node* target, float step)
 	{
-		if (target)
-		{
-			target->SetRotation(start_val_ + delta_val_ * step);
-		}
+		target->SetRotation(start_val_ + delta_val_ * step);
 	}
 
 	ActionPtr RotateBy::Clone() const
@@ -563,21 +548,18 @@ namespace easy2d
 
 	void PathAction::UpdateStep(Node* target, float step)
 	{
-		if (target)
+		float length = geo_->GetLength() * std::min(std::max((end_ - start_) * step + start_, 0.f), 1.f);
+
+		Point point, tangent;
+		if (geo_->ComputePointAt(length, &point, &tangent))
 		{
-			float length = geo_->GetLength() * std::min(std::max((end_ - start_) * step + start_, 0.f), 1.f);
+			target->SetPosition(start_pos_ + point);
 
-			Point point, tangent;
-			if (geo_->ComputePointAt(length, &point, &tangent))
+			if (rotating_)
 			{
-				target->SetPosition(start_pos_ + point);
-
-				if (rotating_)
-				{
-					float ac = math::Acos(tangent.x);
-					float rotation = (tangent.y < 0.f) ? 360.f - ac : ac;
-					target->SetRotation(rotation);
-				}
+				float ac = math::Acos(tangent.x);
+				float rotation = (tangent.y < 0.f) ? 360.f - ac : ac;
+				target->SetRotation(rotation);
 			}
 		}
 	}
diff --git a/src/core/ActionTween.h b/src/core/ActionTween.h
index e910c553..b09f3e8c 100644
--- a/src/core/ActionTween.h
+++ b/src/core/ActionTween.h
@@ -95,16 +95,16 @@ namespace easy2d
 			EaseFunction func
 		);
 
-		virtual void Reset() override;
+		void Reset() override;
 
 		Duration GetDuration() const;
 
 		void SetDuration(Duration duration);
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void Update(Node* target, Duration dt) override;
+		void Update(Node* target, Duration dt) override;
 
 		virtual void UpdateStep(Node* target, float step) = 0;
 
@@ -128,15 +128,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		Point	start_pos_;
@@ -157,7 +157,7 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const override
@@ -167,7 +167,7 @@ namespace easy2d
 		}
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 	protected:
 		Point end_pos_;
@@ -188,15 +188,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		Point	start_pos_;
@@ -221,7 +221,7 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const override
@@ -231,7 +231,7 @@ namespace easy2d
 		}
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 	protected:
 		Point end_pos_;
@@ -257,15 +257,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		float	start_scale_x_;
@@ -294,7 +294,7 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const override
@@ -304,7 +304,7 @@ namespace easy2d
 		}
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 	protected:
 		float	end_scale_x_;
@@ -324,15 +324,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		float start_val_;
@@ -352,7 +352,7 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const override
@@ -362,7 +362,7 @@ namespace easy2d
 		}
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 	protected:
 		float end_val_;
@@ -407,15 +407,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		float start_val_;
@@ -435,7 +435,7 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
 		virtual ActionPtr Reverse() const override
@@ -445,7 +445,7 @@ namespace easy2d
 		}
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
 	protected:
 		float end_val_;
@@ -467,15 +467,15 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void UpdateStep(Node* target, float step) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
 		bool		rotating_;
diff --git a/src/core/Animation.cpp b/src/core/Animation.cpp
index d514c84f..a3b5298a 100644
--- a/src/core/Animation.cpp
+++ b/src/core/Animation.cpp
@@ -26,13 +26,12 @@
 namespace easy2d
 {
 	Animation::Animation()
-		: frame_index_(0)
-		, frames_(nullptr)
+		: frames_(nullptr)
 	{
 	}
 
-	Animation::Animation(FramesPtr const& animation)
-		: frame_index_(0)
+	Animation::Animation(Duration duration, FramesPtr const& animation, EaseFunc func)
+		: ActionTween(duration, func)
 		, frames_(nullptr)
 	{
 		this->SetAnimation(animation);
@@ -52,65 +51,42 @@ namespace easy2d
 		if (animation && animation != frames_)
 		{
 			frames_ = animation;
-			frame_index_ = 0;
 		}
 	}
 
 	void Animation::Init(Node* target)
 	{
-		Action::Init(target);
+		ActionTween::Init(target);
 
-		auto sprite_target = dynamic_cast<Sprite*>(target);
-		if (sprite_target && frames_)
-		{
-			sprite_target->Load(frames_->GetFrames()[frame_index_]);
-			++frame_index_;
-		}
-	}
-
-	void Animation::Update(Node* target, Duration dt)
-	{
-		Action::Update(target, dt);
-
-		if (!frames_)
+		if (!frames_ || frames_->GetFrames().empty())
 		{
 			this->Stop();
 			return;
 		}
 
-		delta_ += dt;
-		while (delta_ >= frames_->GetInterval())
+		auto sprite_target = dynamic_cast<Sprite*>(target);
+		if (sprite_target && frames_)
 		{
-			auto& frames = frames_->GetFrames();
-			auto sprite_target = dynamic_cast<Sprite*>(target);
-
-			if (sprite_target)
-			{
-				sprite_target->Load(frames[frame_index_]);
-			}
-
-			delta_ -= frames_->GetInterval();
-			++frame_index_;
-
-			if (frame_index_ == frames.size())
-			{
-				this->Stop();
-				break;
-			}
+			sprite_target->Load(frames_->GetFrames()[0]);
 		}
 	}
 
-	void Animation::Reset()
+	void Animation::UpdateStep(Node * target, float step)
 	{
-		Action::Reset();
-		frame_index_ = 0;
+		E2D_ASSERT(dynamic_cast<Sprite*>(target) && "Animation only supports Sprites");
+
+		const auto& frames = frames_->GetFrames();
+		size_t size = frames.size();
+		size_t index = std::min(static_cast<size_t>(math::Floor(size * step)), size - 1);
+
+		static_cast<Sprite*>(target)->Load(frames[index]);
 	}
 
 	ActionPtr Animation::Clone() const
 	{
 		if (frames_)
 		{
-			return new (std::nothrow) Animation(frames_);
+			return new (std::nothrow) Animation(duration_, frames_, ease_type_);
 		}
 		return nullptr;
 	}
@@ -119,10 +95,10 @@ namespace easy2d
 	{
 		if (frames_)
 		{
-			auto animation = frames_->Reverse();
-			if (animation)
+			FramesPtr frames = frames_->Reverse();
+			if (frames)
 			{
-				return new (std::nothrow) Animation(animation);
+				return new (std::nothrow) Animation(duration_, frames, ease_type_);
 			}
 		}
 		return nullptr;
diff --git a/src/core/Animation.h b/src/core/Animation.h
index 0d5b8a66..c974aa0b 100644
--- a/src/core/Animation.h
+++ b/src/core/Animation.h
@@ -19,19 +19,21 @@
 // THE SOFTWARE.
 
 #pragma once
-#include "Action.hpp"
+#include "ActionTween.h"
 
 namespace easy2d
 {
 	// 帧动画
 	class Animation
-		: public Action
+		: public ActionTween
 	{
 	public:
 		Animation();
 
-		explicit Animation(
-			FramesPtr const& animation
+		Animation(
+			Duration duration,			/* 动画时长 */
+			FramesPtr const& frames,	/* 帧集合 */
+			EaseFunc func = EaseFunc::Linear
 		);
 
 		virtual ~Animation();
@@ -45,24 +47,17 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
-
-		// 重置动作
-		virtual void Reset() override;
+		ActionPtr Reverse() const override;
 
 	protected:
-		// 初始化动作
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		// 更新动作
-		virtual void Update(Node* target, Duration dt) override;
+		void UpdateStep(Node* target, float step) override;
 
 	protected:
-		size_t frame_index_;
-		Duration delta_;
 		FramesPtr frames_;
 	};
 }
diff --git a/src/core/Canvas.h b/src/core/Canvas.h
index d8c7037d..2a73799e 100644
--- a/src/core/Canvas.h
+++ b/src/core/Canvas.h
@@ -218,7 +218,7 @@ namespace easy2d
 		// 导出为图片
 		ImagePtr ExportToImage() const;
 
-		virtual void OnRender() override;
+		void OnRender() override;
 
 	protected:
 		D2DBitmapPtr const& GetBitmap() const;
diff --git a/src/core/Delay.h b/src/core/Delay.h
index dbe3bf80..fe8f453a 100644
--- a/src/core/Delay.h
+++ b/src/core/Delay.h
@@ -33,18 +33,18 @@ namespace easy2d
 		);
 
 		// 获取该动作的拷贝对象
-		virtual ActionPtr Clone() const override;
+		ActionPtr Clone() const override;
 
 		// 获取该动作的倒转
-		virtual ActionPtr Reverse() const override;
+		ActionPtr Reverse() const override;
 
 		// 重置动作
-		virtual void Reset() override;
+		void Reset() override;
 
 	protected:
-		virtual void Init(Node* target) override;
+		void Init(Node* target) override;
 
-		virtual void Update(Node* target, Duration dt) override;
+		void Update(Node* target, Duration dt) override;
 
 	protected:
 		Duration delay_;
diff --git a/src/core/Frames.cpp b/src/core/Frames.cpp
index 6b0e96cc..c700c445 100644
--- a/src/core/Frames.cpp
+++ b/src/core/Frames.cpp
@@ -25,18 +25,10 @@
 namespace easy2d
 {
 	Frames::Frames()
-		: interval_(200)
 	{
 	}
 
 	Frames::Frames(Array<ImagePtr> const& frames)
-		: interval_(200)
-	{
-		this->Add(frames);
-	}
-
-	Frames::Frames(Duration interval, Array<ImagePtr> const& frames)
-		: interval_(interval)
 	{
 		this->Add(frames);
 	}
@@ -45,11 +37,6 @@ namespace easy2d
 	{
 	}
 
-	void Frames::SetInterval(Duration interval)
-	{
-		interval_ = interval;
-	}
-
 	void Frames::Add(ImagePtr const& frame)
 	{
 		E2D_ASSERT(frame && "Frames::Add failed, NULL pointer exception");
@@ -68,11 +55,6 @@ namespace easy2d
 		}
 	}
 
-	Duration Frames::GetInterval() const
-	{
-		return interval_;
-	}
-
 	Array<ImagePtr> const& Frames::GetFrames() const
 	{
 		return frames_;
@@ -83,7 +65,6 @@ namespace easy2d
 		auto animation = new (std::nothrow) Frames;
 		if (animation)
 		{
-			animation->SetInterval(interval_);
 			for (const auto& frame : frames_)
 			{
 				animation->Add(frame);
@@ -97,7 +78,6 @@ namespace easy2d
 		auto animation = new (std::nothrow) Frames;
 		if (!frames_.empty())
 		{
-			animation->SetInterval(interval_);
 			for (auto iter = frames_.crbegin(), crend = frames_.crend(); iter != crend; ++iter)
 			{
 				if (*iter)
diff --git a/src/core/Frames.h b/src/core/Frames.h
index 8cc41c1a..05a835db 100644
--- a/src/core/Frames.h
+++ b/src/core/Frames.h
@@ -35,11 +35,6 @@ namespace easy2d
 			Array<ImagePtr> const& frames	/* 关键帧数组 */
 		);
 
-		explicit Frames(
-			Duration interval,		/* 帧间隔 */
-			Array<ImagePtr> const& frames	/* 关键帧数组 */
-		);
-
 		virtual ~Frames();
 
 		// 添加关键帧
@@ -52,17 +47,9 @@ namespace easy2d
 			Array<ImagePtr> const& frames
 		);
 
-		// 获取帧间隔
-		Duration GetInterval() const;
-
 		// 获取关键帧
 		Array<ImagePtr> const& GetFrames() const;
 
-		// 设置每一帧的时间间隔
-		void SetInterval(
-			Duration interval
-		);
-
 		// 获取帧动画的拷贝对象
 		FramesPtr Clone() const;
 
@@ -70,7 +57,6 @@ namespace easy2d
 		FramesPtr Reverse() const;
 
 	protected:
-		Duration		interval_;
 		Array<ImagePtr>	frames_;
 	};
 }
diff --git a/src/core/GeometryNode.h b/src/core/GeometryNode.h
index 557c6c6a..7ab3c6ff 100644
--- a/src/core/GeometryNode.h
+++ b/src/core/GeometryNode.h
@@ -77,7 +77,7 @@ namespace easy2d
 		// 获取线条相交样式
 		StrokeStyle SetOutlineJoinStyle() const { return outline_join_; }
 
-		virtual void OnRender() override;
+		void OnRender() override;
 
 	protected:
 		Color		fill_color_;
diff --git a/src/core/Node.h b/src/core/Node.h
index 688db051..2f0668b9 100644
--- a/src/core/Node.h
+++ b/src/core/Node.h
@@ -56,7 +56,7 @@ namespace easy2d
 		virtual void OnRender() {}
 
 		// 事件分发
-		virtual void Dispatch(Event& evt) override;
+		void Dispatch(Event& evt) override;
 
 		// 获取显示状态
 		bool IsVisible()				const	{ return visible_; }
diff --git a/src/core/Sprite.h b/src/core/Sprite.h
index e8f60dd0..bc3beb06 100644
--- a/src/core/Sprite.h
+++ b/src/core/Sprite.h
@@ -65,7 +65,7 @@ namespace easy2d
 		ImagePtr const& GetImage() const;
 
 		// 渲染精灵
-		virtual void OnRender() override;
+		void OnRender() override;
 
 	protected:
 		ImagePtr image_;
diff --git a/src/core/Text.h b/src/core/Text.h
index bc92bac5..4e532111 100644
--- a/src/core/Text.h
+++ b/src/core/Text.h
@@ -199,7 +199,7 @@ namespace easy2d
 			TextStyle const& style
 		);
 
-		virtual void OnRender() override;
+		void OnRender() override;
 
 	protected:
 		void UpdateLayout();
diff --git a/src/core/Transition.h b/src/core/Transition.h
index 206e43e5..a4dfca8b 100644
--- a/src/core/Transition.h
+++ b/src/core/Transition.h
@@ -81,7 +81,7 @@ namespace easy2d
 
 	protected:
 		// 更新动画
-		virtual void Update(Duration dt) override;
+		void Update(Duration dt) override;
 
 		virtual void Init(
 			ScenePtr const& prev,
@@ -100,7 +100,7 @@ namespace easy2d
 		);
 
 	protected:
-		virtual void Update(Duration dt) override;
+		void Update(Duration dt) override;
 
 		virtual void Init(
 			ScenePtr const& prev,
@@ -119,7 +119,7 @@ namespace easy2d
 		);
 
 	protected:
-		virtual void Update(Duration dt) override;
+		void Update(Duration dt) override;
 
 		virtual void Init(
 			ScenePtr const& prev,
@@ -139,14 +139,14 @@ namespace easy2d
 		);
 
 	protected:
-		virtual void Update(Duration dt) override;
+		void Update(Duration dt) override;
 
 		virtual void Init(
 			ScenePtr const& prev,
 			ScenePtr const& next
 		) override;
 
-		virtual void Reset() override;
+		void Reset() override;
 
 	protected:
 		Direction	direction_;
@@ -166,14 +166,14 @@ namespace easy2d
 		);
 
 	protected:
-		virtual void Update(Duration dt) override;
+		void Update(Duration dt) override;
 
 		virtual void Init(
 			ScenePtr const& prev,
 			ScenePtr const& next
 		) override;
 
-		virtual void Reset() override;
+		void Reset() override;
 
 	protected:
 		float	rotation_;