UTF-8 0x00 - 0x7F 1byte 0 0x80 - 0xDF 2byte 110 0xE0 - 0xEF 3byte 1110 0xF0 - 0xFF 4byte 11110 SJIS 0x00 - 0x7F , 0xA0 - 0xDF 1byte others 2byte