?字UNICODE编码U+28B64,10进制: 166756,UTF-32: 00028B64,UTF-8: F0 A8 AD A4。(ZI.tTcx.nET)
?字位于中日韩统一表意文字扩充B区(CJK Unified Ideographs Extension B)。(ZI.tTcx.nET)