Cocos2D对音乐/音效播放的封装已经很好了，下边是例子：

定义2个文件：

 

#define MUSIC_FILE        "LOLBgMusic.mp3"#define EFFECT_FILE		 "Attack.wav"

在初始化的时候预加载音乐/音效文件：

 

 

//预加载	CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(MUSIC_FILE);	CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadEffect( EFFECT_FILE );	//设置音量	CocosDenshion::SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5);	CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);

播放：

 

 

//循环播放背景音乐，		CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(MUSIC_FILE,true);

//播放音效		CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE);

其他相关函数：

 

 

// stop background musicSimpleAudioEngine::sharedEngine()->stopBackgroundMusic(); // pause background music SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();// resume background musicSimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();// rewind background musicSimpleAudioEngine::sharedEngine()->rewindBackgroundMusic();// is background music playingSimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying()// add bakcground music volumeSimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f);SimpleAudioEngine::sharedEngine()->pauseEffect(m_nSoundId);SimpleAudioEngine::sharedEngine()->resumeEffect(m_nSoundId);SimpleAudioEngine::sharedEngine()->pauseAllEffects();SimpleAudioEngine::sharedEngine()->resumeAllEffects();SimpleAudioEngine::sharedEngine()->stopAllEffects();

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