// 播放音乐
NSString *path = [[NSBundle mainBundle] pathForResource:@"1670" ofType:@"mp3"];
NSError * error;
self.avaPlayer= [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path]error:&error];
self.avaPlayer.volume = 1;
[self.avaPlayer prepareToPlay];
[self.avaPlayer setNumberOfLoops:100];
[self.avaPlayer play];