using System.Media;
 
string szPath = Application.StartupPath + “\\SoundFile\\sound.wav”;
SoundPlayer soundplayer = new SoundPlayer();
声音文件路径：
soundplayer.SoundLocation = szPath;
播放方式：
①同步播放：
soundplayer.Load();
soundplayer.Play();
②异步播放：
soundplayer.LoadAsync();
soundplayer.PlaySync();
③循环播放：
soundplayer.Load();
soundplayer.PlayLooping();
④关闭：//关闭时释放资源
soundplayer.Stop();
soundplayer.Dispose();