?字UNICODE编码U+212A1,10进制: 135841,UTF-32: 000212A1,UTF-8: F0 A1 8A A1。(//www.FhchA.COM/ZidiAN/)
?字位于中日韩统一表意文字扩充B区(CJK Unified Ideographs Extension B)。来自汉字字典