* @param {number[]} nums - 循环数组
There is a minor artefact in the final file. The stitched .m4a sometimes contains silent padding at the start or end from incomplete chunks at buffer boundaries. A quick ffmpeg pass fixes it cleanly:
。关于这个话题，Line官方版本下载提供了深入分析
黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前
* @param arr 数组