IOS播放音乐

NSString *audioPath =[[NSBundle mainBundle]pathForResource:@"aaa" ofType:@"m4a"];
    NSURL *url = [NSURL fileURLWithPath:audioPath];
    NSError *error;
    audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];
    audioPlayer.numberOfLoops = 1;
    [audioPlayer play];
NSString *audioPath =[[NSBundle mainBundle]pathForResource:@"aaa" ofType:@"m4a"];
    NSURL *url = [NSURL fileURLWithPath:audioPath];
    NSError *error;
    audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];
    audioPlayer.numberOfLoops = 1;
    [audioPlayer play];