股票数据，挑战性问题，敬请帮忙。(300)

钱龙旗舰2009版成交明细文件格式（..realtime/600***.tic文件）前0..11个字节是文件头：data: array[0..11] of byte = ($00, $34, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00);以后每52个字节为一个记录：data: array[0..51] of byte = ( $A8, $84,=时间（秒数）（秒数 DIV 60=MiN，MiN DIV 60=小时，MiN Mod 60=分） $00, $FF,= $01主动买入， $FF主动卖出 $5A, $46, $00, $00,=成交价 $00, $00, $00, $00,=空 $E8, $FC, $07, $41,= 成交量 $1E, $19, $00, $00,=买入价 $82, $46, $00, $00,=卖出价 $00, $00, $00, $00,=空 $00, $00, $00, $00,=空 $00, $00, $00, $00,=空 $00, $00, $00, $00,=空 $00, $00, $00, $00,=空 $00, $00, $00, $00，=空 $00, $00, $00, $01=第几笔};股票600376，2010.02.26文件前272个字节（delphi格式）前0..11个字节是文件头从12个字节开始每52个字节为一个记录（取前5个记录）。data: array[0..11] of byte = ( $00, $34, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00//文件头 //第一记录 $A8, $84, //时间 $00, $FF, //买卖 $5A, $46, $00, $00,//成交价 $00, $00, $00, $00, //空 $E8, $FC, $07, $41, //成交量 $5A, $46, $00, $00,//买入价 $82, $46, $00, $00,//卖出价 $00, $00, $00, $00, //空 $00, $00, $00, $00, //空 $00, $00, $00, $00, //空 $00, $00, $00, $00, //空 $00, $00, $00, $00, //空 $00, $00, $00, $00, //空 $01, $00, $00, $00, //第几笔 //第二记录 $D4, $85,$00, $01, $78, $46, $00, $00, $00, $00, $00, $00, $20, $6F, $F6, $40, $5A, $46, $00, $00, $78, $46, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $02, $00, $00, $00, //第三记录 $D4, $85, $00, $01, $96, $46, $00, $00, $00, $00, $00, $00, $40, $B4, $F5, $40, $82, $46, $00, $00, $96, $46, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $03, $00, $00, $00, //第四记录 $D4, $85, $00, $01, $AA, $46, $00, $00, $00, $00, $00, $00, $80, $E1, $EB, $40, $AA, $46, $00, $00, $B4, $46, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $04, $00, $00, $00, 第五记录 $D4, $85, $00, $01, $B4, $46, $00, $00, $00, $00, $00, $00, $00, $00, $59, $40, $AA, $46, $00, $00, $B4, $46, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $05, $00, $00, $00);问题：成交量 4个字节是加密的，如第一个记录“$E8, $FC, $07, $41”=1965手，以下是部分成交量手数总结： $00,$00,$59,$40 1手 $00,$00,$69,$40 2手 $00,$C0,$72,$40 3手 $00,$00,$79,$40 4手 $00,$40,$7F,$40 5手 $00,$C0,$82,$40 6手 $00,$E0,$85,$40 7手 $00,$00,$89,$40 8手 $00,$20,$8C,$40 9手 $00,$40,$8F,$40 10手 $C0,$57,$0A,$41 2158手 $20,$2F,$0A,$41 2145手 $80,$4A,$07,$41 1908手 似乎2的N次方(N>=0,如1，2，4，8，16等)有以下规律 $00,$00,$59,$40 1手 $00,$00,$69,$40 2手 $00,$00,$79,$40 4手 $00,$00,$89,$40 8手 $00,$00,$99,$40 16手其它不知道有何规律。如何破解成交量（手数）？大家帮忙，先给300分，解决者另给分.

挑战了有什么好处？

1000分奉送

LZ在2008-9-11就提出过类似地问题，见下地址：http://www.delphibbs.com/delphibbs/dispq.asp?lid=3920679那个帖子还没结吧？似乎不够地道啊。

貌似是钱龙旗舰2009版的qiang手？[]

感谢szhcracker提醒，已经散分，还请你再次帮忙破解难题