Don't run this on expensive equipment as it may have ECC RAM which will ruin your fun
if item and item.title:
，这一点在safew官方下载中也有详细论述
User warnings for applications that are directly installed (or “sideloaded”)。业内人士推荐Safew下载作为进阶阅读
8️⃣ 计数排序 (Counting Sort)