#import <UIKit/UIKit.h>//加入AVFoundation.framework頭文件#import <AVFoundation/AVFoundation.h>@interface RootViewController : UIViewController<AVAudioPlayerDelegate>{  //播放器player  AVAudioPlayer *avAudioPlayer;}@end

#import "RootViewController.h"//導入AVFoundation.framework#import <AVFoundation/AVFoundation.h>@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  if (self) {    // Custom initialization  }  return self;}- (void)viewDidLoad{  [super viewDidLoad];  // Do any additional setup after loading the view.    self.title=@"MP3的播放";}-(void)initPlay{  //從budle路徑下讀取音頻文件  NSString *string = [[NSBundle mainBundle] pathForResource:@"母親" ofType:@"mp3"];    //把音頻文件轉換成url格式  NSURL *url = [NSURL fileURLWithPath:string];    //初始化音頻類 并且添加播放文件  avAudioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];    //開始進行播放  [avAudioPlayer play];    }