diff --git a/core/Common/Image.cpp b/core/Common/Image.cpp
index d6e9cfd6..559c06eb 100644
--- a/core/Common/Image.cpp
+++ b/core/Common/Image.cpp
@@ -1,10 +1,8 @@
 #include "..\e2dcommon.h"
 #include "..\e2dbase.h"
 #include "..\e2dtool.h"
-#include <map>
-
-static std::map<e2d::Resource, ID2D1Bitmap*> s_mBitmapsFromResource;
 
+std::map<e2d::Resource, ID2D1Bitmap*> e2d::Image::_bitmapCache;
 
 e2d::Image::Image()
 	: _bitmap(nullptr)
@@ -62,7 +60,7 @@ bool e2d::Image::open(const Resource& res)
 		return false;
 	}
 
-	this->_setBitmap(s_mBitmapsFromResource.at(res));
+	this->_setBitmap(_bitmapCache.at(res));
 	return true;
 }
 
@@ -150,7 +148,7 @@ e2d::Point e2d::Image::getCropPos() const
 
 bool e2d::Image::preload(const Resource& res)
 {
-	if (s_mBitmapsFromResource.find(res) != s_mBitmapsFromResource.end())
+	if (_bitmapCache.find(res) != _bitmapCache.end())
 	{
 		return true;
 	}
@@ -284,7 +282,7 @@ bool e2d::Image::preload(const Resource& res)
 
 	if (SUCCEEDED(hr))
 	{
-		s_mBitmapsFromResource.insert(std::make_pair(res, pBitmap));
+		_bitmapCache.insert(std::make_pair(res, pBitmap));
 	}
 
 	// 释放相关资源
@@ -298,11 +296,11 @@ bool e2d::Image::preload(const Resource& res)
 
 void e2d::Image::clearCache()
 {
-	for (auto bitmap : s_mBitmapsFromResource)
+	for (auto bitmap : _bitmapCache)
 	{
 		SafeRelease(bitmap.second);
 	}
-	s_mBitmapsFromResource.clear();
+	_bitmapCache.clear();
 }
 
 void e2d::Image::_setBitmap(ID2D1Bitmap * bitmap)
diff --git a/core/Tool/Player.cpp b/core/Tool/Player.cpp
index aaf0ea18..b3409439 100644
--- a/core/Tool/Player.cpp
+++ b/core/Tool/Player.cpp
@@ -13,9 +13,9 @@ e2d::Player::Player()
 
 e2d::Player::~Player()
 {
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 		GC::release(pair.second);
-	_resList.clear();
+	_musicList.clear();
 
 	if (_masteringVoice)
 		_masteringVoice->DestroyVoice();
@@ -65,7 +65,7 @@ bool e2d::Player::preload(const String& filePath)
 
 bool e2d::Player::preload(const Resource& res)
 {
-	if (_resList.end() != _resList.find(res))
+	if (_musicList.end() != _musicList.find(res))
 		return true;
 
 	Music * music = new (e2d::autorelease) Music();
@@ -74,7 +74,7 @@ bool e2d::Player::preload(const Resource& res)
 	{
 		GC::retain(music);
 		music->setVolume(_volume);
-		_resList.insert(std::make_pair(res, music));
+		_musicList.insert(std::make_pair(res, music));
 		return true;
 	}
 	return false;
@@ -92,7 +92,7 @@ bool e2d::Player::play(const Resource& res, int nLoopCount)
 {
 	if (Player::preload(res))
 	{
-		auto music = _resList[res];
+		auto music = _musicList[res];
 		if (music->play(nLoopCount))
 		{
 			return true;
@@ -111,8 +111,8 @@ void e2d::Player::pause(const String& filePath)
 
 void e2d::Player::pause(const Resource& res)
 {
-	if (_resList.end() != _resList.find(res))
-		_resList[res]->pause();
+	if (_musicList.end() != _musicList.find(res))
+		_musicList[res]->pause();
 }
 
 void e2d::Player::resume(const String& filePath)
@@ -125,8 +125,8 @@ void e2d::Player::resume(const String& filePath)
 
 void e2d::Player::resume(const Resource& res)
 {
-	if (_resList.end() != _resList.find(res))
-		_resList[res]->pause();
+	if (_musicList.end() != _musicList.find(res))
+		_musicList[res]->pause();
 }
 
 void e2d::Player::stop(const String& filePath)
@@ -143,8 +143,8 @@ void e2d::Player::stop(const Resource& res)
 	{
 
 	}
-	if (_resList.end() != _resList.find(res))
-		_resList[res]->stop();
+	if (_musicList.end() != _musicList.find(res))
+		_musicList[res]->stop();
 }
 
 bool e2d::Player::isPlaying(const String& filePath)
@@ -157,8 +157,8 @@ bool e2d::Player::isPlaying(const String& filePath)
 
 bool e2d::Player::isPlaying(const Resource& res)
 {
-	if (_resList.end() != _resList.find(res))
-		return _resList[res]->isPlaying();
+	if (_musicList.end() != _musicList.find(res))
+		return _musicList[res]->isPlaying();
 	return false;
 }
 
@@ -170,7 +170,7 @@ double e2d::Player::getVolume()
 void e2d::Player::setVolume(double volume)
 {
 	_volume = std::min(std::max(float(volume), -224.f), 224.f);
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 	{
 		pair.second->setVolume(_volume);
 	}
@@ -178,7 +178,7 @@ void e2d::Player::setVolume(double volume)
 
 void e2d::Player::pauseAll()
 {
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 	{
 		pair.second->pause();
 	}
@@ -186,7 +186,7 @@ void e2d::Player::pauseAll()
 
 void e2d::Player::resumeAll()
 {
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 	{
 		pair.second->resume();
 	}
@@ -194,7 +194,7 @@ void e2d::Player::resumeAll()
 
 void e2d::Player::stopAll()
 {
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 	{
 		pair.second->stop();
 	}
@@ -202,9 +202,9 @@ void e2d::Player::stopAll()
 
 void e2d::Player::clearCache()
 {
-	for (auto pair : _resList)
+	for (auto pair : _musicList)
 	{
 		GC::release(pair.second);
 	}
-	_resList.clear();
+	_musicList.clear();
 }
diff --git a/core/e2dcommon.h b/core/e2dcommon.h
index d9e1bba1..a6998680 100644
--- a/core/e2dcommon.h
+++ b/core/e2dcommon.h
@@ -552,10 +552,10 @@ public:
 	bool operator<= (const Resource &) const;
 
 protected:
-	bool _isResource;
-	String _fileName;
-	int _resNameId;
-	String _resType;
+	bool	_isResource;
+	int		_resNameId;
+	String	_resType;
+	String	_fileName;
 };
 
 
@@ -675,6 +675,8 @@ protected:
 protected:
 	Rect _cropRect;
 	ID2D1Bitmap * _bitmap;
+
+	static std::map<Resource, ID2D1Bitmap*> _bitmapCache;
 };
 
 
diff --git a/core/e2dtool.h b/core/e2dtool.h
index b69c38ac..dda2fcca 100644
--- a/core/e2dtool.h
+++ b/core/e2dtool.h
@@ -253,7 +253,7 @@ private:
 
 private:
 	float					_volume;
-	MusicMap				_resList;
+	MusicMap				_musicList;
 	IXAudio2*				_xAudio2;
 	IXAudio2MasteringVoice*	_masteringVoice;