?字UNICODE编码U+21C78,10进制: 138360,UTF-32: 00021C78,UTF-8: F0 A1 B1 B8。(TTCx.NeT)
?字位于中日韩统一表意文字扩充B区(CJK Unified Ideographs Extension B)。由天天查询汉语字典提供