83542062222222222561283216864八位叫Byte汉字要16位ASCII(American Standard CodeforInformation Interchange)EBCDIC (ExtendedBCDInterchangeCode)8 7 6 5 4 3 2 1 0 2 2 2 2 2 2 2 2 2 256 128 64 32 16 8 4 2 1 八位叫 Byte 汉字要16位 ASCII ( American Standard Code for Information Interchange) EBCDIC (Extended BCD Interchange Code)