#import <AudioToolbox/AudioToolbox.h>
//用系統音量播放
    SystemSoundID soundID;
    // 加載文件
    NSURL *fileURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:soundName ofType:@"wav"]];
    AudioServicesCreateSystemSoundID((__bridge CFURLRef)(fileURL), &soundID);

    // 播放短頻音效
    AudioServicesPlayAlertSound(soundID);

    // 增加震動效果，如果手機處于靜音狀態，提醒音將自動觸發震動
    AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);

#import <AVFoundation/AVFoundation.h>
    //用媒體音量播放
    NSURL *fileURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:soundName ofType:@"wav"]];

    self.audioplay = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];

    [self.audioplay play];