diff --git a/core/e2dmacros.h b/core/e2dmacros.h
index b30a6f6f..4de8cc47 100644
--- a/core/e2dmacros.h
+++ b/core/e2dmacros.h
@@ -81,6 +81,7 @@
 #include <sstream>
 #include <functional>
 #include <algorithm>
+#include <stdexcept>
 
 // Import Libraries
 #pragma comment(lib, "d2d1.lib")
diff --git a/core/e2dtool.h b/core/e2dtool.h
index 4e8f047c..948f831d 100644
--- a/core/e2dtool.h
+++ b/core/e2dtool.h
@@ -27,49 +27,6 @@
 namespace easy2d
 {
 
-	// 随机数产生器
-	class Random
-	{
-	public:
-		// 取得范围内的一个整型随机数
-		template<typename T>
-		static inline T Range(T min, T max)
-		{
-			return easy2d::Random::RandomInt(min, max);
-		}
-
-		// 取得范围内的一个浮点数随机数
-		static inline float Range(float min, float max)
-		{
-			return easy2d::Random::RandomReal(min, max);
-		}
-
-		// 取得范围内的一个浮点数随机数
-		static inline double Range(double min, double max)
-		{
-			return easy2d::Random::RandomReal(min, max);
-		}
-
-	private:
-		template<typename T>
-		static T RandomInt(T min, T max)
-		{
-			std::uniform_int_distribution<T> dist(min, max);
-			return dist(Random::GetEngine());
-		}
-
-		template<typename T>
-		static T RandomReal(T min, T max)
-		{
-			std::uniform_real_distribution<T> dist(min, max);
-			return dist(Random::GetEngine());
-		}
-
-		// 获取随机数产生器
-		static std::default_random_engine &GetEngine();
-	};
-
-
 	// 音乐
 	class Music
 		: public Ref
diff --git a/core/e2dutil.h b/core/e2dutil.h
index 7aa5ba09..3f4963b4 100644
--- a/core/e2dutil.h
+++ b/core/e2dutil.h
@@ -526,6 +526,49 @@ namespace easy2d
 	};
 
 
+	// 随机数产生器
+	class Random
+	{
+	public:
+		// 取得范围内的一个整型随机数
+		template<typename T>
+		static inline T Range(T min, T max)
+		{
+			return easy2d::Random::RandomInt(min, max);
+		}
+
+		// 取得范围内的一个浮点数随机数
+		static inline float Range(float min, float max)
+		{
+			return easy2d::Random::RandomReal(min, max);
+		}
+
+		// 取得范围内的一个浮点数随机数
+		static inline double Range(double min, double max)
+		{
+			return easy2d::Random::RandomReal(min, max);
+		}
+
+	private:
+		template<typename T>
+		static T RandomInt(T min, T max)
+		{
+			std::uniform_int_distribution<T> dist(min, max);
+			return dist(Random::GetEngine());
+		}
+
+		template<typename T>
+		static T RandomReal(T min, T max)
+		{
+			std::uniform_real_distribution<T> dist(min, max);
+			return dist(Random::GetEngine());
+		}
+
+		// 获取随机数产生器
+		static std::default_random_engine &GetEngine();
+	};
+
+
 	// 引用计数对象
 	class Ref
 	{
@@ -558,45 +601,6 @@ namespace easy2d
 		}
 	}
 
-	// 运行时异常
-	class RuntimeError
-	{
-	public:
-		RuntimeError() E2D_NOEXCEPT
-			: message_(nullptr)
-		{
-		}
-
-		explicit RuntimeError(char const* const message) E2D_NOEXCEPT
-			: message_(message)
-		{
-		}
-
-		RuntimeError(RuntimeError const& other) E2D_NOEXCEPT
-			: message_(other.message_)
-		{
-		}
-
-		RuntimeError& operator=(RuntimeError const& other) E2D_NOEXCEPT
-		{
-			if (this == &other)
-			{
-				return *this;
-			}
-
-			message_ = other.message_;
-			return *this;
-		}
-
-		virtual char const* Message() const
-		{
-			return message_ ? message_ : "Unknown runtime exception";
-		}
-
-	private:
-		char const* message_;
-	};
-
 
 	inline void ThrowIfFailed(HRESULT hr)
 	{
@@ -605,7 +609,7 @@ namespace easy2d
 			// 在此处设置断点以捕获系统异常.
 			static char s_str[64] = {};
 			sprintf_s(s_str, "Failure with HRESULT of %08X", static_cast<unsigned int>(hr));
-			throw RuntimeError(s_str);
+			throw std::runtime_error(s_str);
 		}
 	}
 
diff --git a/core/modules/Game.cpp b/core/modules/Game.cpp
index f47c4068..e3820319 100644
--- a/core/modules/Game.cpp
+++ b/core/modules/Game.cpp
@@ -51,7 +51,7 @@ easy2d::Game::Game()
 {
 	if (instance)
 	{
-		throw RuntimeError("同时只能存在一个游戏实例");
+		throw std::runtime_error("同时只能存在一个游戏实例");
 	}
 	instance = this;
 
@@ -317,7 +317,7 @@ void easy2d::Game::Init()
 	if (hwnd_ == nullptr)
 	{
 		::UnregisterClass(REGISTER_CLASS, hinstance);
-		throw RuntimeError("Create window failed");
+		throw std::runtime_error("Create window failed");
 		return;
 	}
 
diff --git a/core/objects/Node.cpp b/core/objects/Node.cpp
index 7ad699c0..05e84cf4 100644
--- a/core/objects/Node.cpp
+++ b/core/objects/Node.cpp
@@ -606,14 +606,14 @@ void easy2d::Node::AddChild(Node * child, int order)
 	{
 		if (child->parent_ != nullptr)
 		{
-			throw RuntimeError("节点已有父节点, 不能再添加到其他节点");
+			throw std::runtime_error("节点已有父节点, 不能再添加到其他节点");
 		}
 
 		for (Node * parent = this; parent != nullptr; parent = parent->GetParent())
 		{
 			if (child == parent)
 			{
-				throw RuntimeError("一个节点不能同时是另一个节点的父节点和子节点");
+				throw std::runtime_error("一个节点不能同时是另一个节点的父节点和子节点");
 			}
 		}
 
@@ -787,7 +787,7 @@ void easy2d::Node::RunAction(Action * action)
 		}
 		else
 		{
-			throw RuntimeError("该 Action 已有执行目标");
+			throw std::runtime_error("该 Action 已有执行目标");
 		}
 	}
 }
diff --git a/core/utils/Random.cpp b/core/utils/Random.cpp
index 035dce8b..f6aab299 100644
--- a/core/utils/Random.cpp
+++ b/core/utils/Random.cpp
@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-#include "..\e2dtool.h"
+#include "..\e2dutil.h"
 
 std::default_random_engine &easy2d::Random::GetEngine()
 {