不知道2000或2003系统会不会也这样,我要晚上回去试下.不知道DWING你能不能解释这种现象呢?

我猜是,一种带预览的文件类型,改成了jpg,而已,呵呵：）

此文件实际包含两个图片,预览图在前,真正的图片在后:00000000h: FF D8 FF E0 00 10 4A 46 49 46 00 01 01 01 00 FA ; 　 JFIF00000010h: 00 FA 00 00 FF ED 0C 72 50 68 6F 74 6F 73 68 6F ;　　　 Photosho00000020h: 70 20 33 2E 30 00 38 42 49 4D 03 ED 00 00 00 00 ; p 00000030h: 00 10 00 FA 00 00 00 01 00 02 00 FA 00 00 00 01 ;00000040h: 00 02 38 42 49 4D 04 0D 00 00 00 00 00 04 00 00 ;00000050h: 00 78 38 42 49 4D 03 F3 00 00 00 00 00 08 00 00 ;00000060h: 00 00 00 00 00 00 38 42 49 4D 04 0A 00 00 00 00 ;00000070h: 00 01 00 00 38 42 49 4D 27 10 00 00 00 00 00 0A ;00000080h: 00 01 00 00 00 00 00 00 00 02 38 42 49 4D 03 F5 ;00000090h: 00 00 00 00 00 48 00 2F 66 66 00 01 00 6C 66 66 ;000000a0h: 00 06 00 00 00 00 00 01 00 2F 66 66 00 01 00 A1 ;000000b0h: 99 9A 00 06 00 00 00 00 00 01 00 32 00 00 00 01 ;000000c0h: 00 5A 00 00 00 06 00 00 00 00 00 01 00 35 00 00 ;000000d0h: 00 01 00 2D 00 00 00 06 00 00 00 00 00 01 38 42 ;000000e0h: 49 4D 03 F8 00 00 00 00 00 70 00 00 FF FF FF FF ;000000f0h: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ;00000100h: FF FF 03 E8 00 00 00 00 FF FF FF FF FF FF FF FF ;00000110h: FF FF FF FF FF FF FF FF FF FF FF FF FF FF 03 E8 ;00000120h: 00 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF ;00000130h: FF FF FF FF FF FF FF FF FF FF 03 E8 00 00 00 00 ;00000140h: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ;00000150h: FF FF FF FF FF FF 03 E8 00 00 38 42 49 4D 04 00 ;00000160h: 00 00 00 00 00 02 00 0B 38 42 49 4D 04 02 00 00 ;00000170h: 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 ;00000180h: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ;00000190h: 00 00 00 00 00 00 00 00 38 42 49 4D 04 08 00 00 ;000001a0h: 00 00 00 10 00 00 00 01 00 00 02 40 00 00 02 40 ;000001b0h: 00 00 00 00 38 42 49 4D 04 14 00 00 00 00 00 04 ;000001c0h: 00 00 00 30 38 42 49 4D 04 0C 00 00 00 00 0A 30 ;000001d0h: 00 00 00 01 00 00 00 70 00 00 00 54 00 00 01 50 ;000001e0h: 00 00 6E 40 00 00 0A 14 00 18 00 01 FF D8 FF E0 ;000001f0h: 00 10 4A 46 49 46 00 01 02 01 00 48 00 48 00 00 ;　 JFIF00000200h: FF EE 00 0E 41 64 6F 62 65 00 64 80 00 00 00 01 ;　　 Adobe

那这样的图是怎么做出来的呢?还有你粘上那些16进制有什么用啊,没你那个本事由此大概也说明了操作系统预览时所执行的和一般的显示图片的软件不同吧?

多谢dwing老大,呵呵,你好东西真多,:)

另外JPG Extractor提取出来的jpg文件没有无用的描述信息,因此也可以用于清理JPG文件,略微减小文件体积.

好东西,已经收藏了，呵呵:)jpg的结构还不会,晚上回家看看,图形方面的东西,我是一点不会啊:(

刚才测试了一下,果然很强悍,呵呵:)

对于文件头有些坏的JPG也行啊!

很强悍