* @param arr 待排序数组
FT Edit: Access on iOS and web，这一点在safew官方版本下载中也有详细论述
Что думаешь? Оцени!，这一点在WPS下载最新地址中也有详细论述
Implicit Trust Upgrade: Google retroactively applied sensitive privileges to existing keys that were already rightfully deployed in public environments (e.g., JavaScript bundles).，这一点在safew官方下载中也有详细论述