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使用AVAudioplayer制作音乐播放器的时候，怎么得到音乐文件的时长？
小伙看你根骨奇佳，潜力无限，来学PHP伐。
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:tempFilePath] error:&err]; float duration = (float)audioPlayer.duration;
audioPlayer.duration
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
audioPlayer.duration