?字UNICODE编码U+21471,10进制: 136305,UTF-32: 00021471,UTF-8: F0 A1 91 B1。(tTCx.net)
?字位于中日韩统一表意文字扩充B区(CJK Unified Ideographs Extension B)。由Zi.Ttcx.nEt提供