[Unit] 加载本地音频文件在 ios 和 android 设备上

如果出现这个报错
Errror:“Cannot connect to destination host.”
说明你的文件路径没有添加 "file://"

	    private IEnumerator LoadAudio(string filepath)
        {
            filepath = "file://" + filepath;
            using (var uwr = UnityWebRequestMultimedia.GetAudioClip(filepath, AudioType.WAV))
            {
                yield return uwr.SendWebRequest();
                if (uwr.isNetworkError)
                {
                    Debug.LogError("------" + uwr.error);
                }
                else
                {
                    AudioClip clip = DownloadHandlerAudioClip.GetContent(uwr);
                    CurAudioSource.clip = clip;
                    CurAudioSource.mute = false;
                    CurAudioSource.loop = false;
                    CurAudioSource.Play();
                }
            }
        }