AVAudioPlayer无法在swift中播放音频

import AVFoundation

// 检查音频文件是否存在
guard let audioPath = Bundle.main.path(forResource: "audio", ofType: "mp3") else {
    print("音频文件不存在")
    return
}

// 初始化AVAudioPlayer
guard let audioURL = URL(fileURLWithPath: audioPath) else {
    print("音频文件路径错误")
    return
}

do {
    // 初始化AVAudioPlayer
    let audioPlayer = try AVAudioPlayer(contentsOf: audioURL)
    
    // 设置AVAudioPlayer的代理
    audioPlayer.delegate = self
    
    // 播放音频
    audioPlayer.play()
} catch {
    print("音频播放失败：\(error)")
}

// 实现AVAudioPlayerDelegate协议中的方法
extension ViewController: AVAudioPlayerDelegate {
    func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
        if flag {
            print("音频播放完成")
        } else {
            print("音频播放失败")
        }
    }
    
    func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: Error?) {
        print("音频解码出错：\(error)")
    }
}