JPEG (jpg):FF D8 FF
·PNG (png):89 50 4E 47 【参考:png文件头详解】89 50 4e 47 0d 0a 1a 0a
·GIF (gif):47 49 46 38
·Windows Bitmap (bmp)文件头:42 4D 【参考:bmp文件格式详解]42 4D 36 0C 30 00 00 00 00 00 36 00 00 00 28 00 00 00 56 05 00 00 00 03 00 00 01 00 18 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00】
·python反编译文件pyc的头:03 F3 0D 0A
·pyd的文件头:4D 5A 90 00
·ZIP Archive (zip),文件头:50 4B 03 04ascii码部分是PK,可以直接根据PK判断是zip文件,也有可能是doc文件
·gz文件:1F 8B 08 00
·7z文件头:37 7A BC AF 27 1C
·rar文件: 52 61 72 21
·Rich Text Format (rtf):7B5C727466
·XML (xml):3C3F786D6C
·HTML (html),文件头:68746D6C3E
·Email [thorough only] (eml),文件头:44656C69766572792D646174653A
·Outlook Express (dbx),文件头:CFAD12FEC5FD746F
·Outlook (pst),文件头:2142444E
·MS Word/Excel (xls.or.doc)文件头:D0CF11E0
·CAD (dwg):41433130
·Adobe Photoshop (psd):38425053
·MS Access (mdb),文件头:5374616E64617264204A
·WordPerfect (wpd),文件头:FF575043
·Postscript (eps.or.ps),文件头:252150532D41646F6265
·Adobe Acrobat (pdf),文件头:255044462D312E
·Quicken (qdf),文件头:AC9EBD8F
·Windows Password (pwl),文件头:E3828596
·RAR Archive (rar),文件头:52617221
·Wave (wav),文件头:57415645
·AVI (avi),文件头:41564920
·Real Audio (ram),文件头:2E7261FD
·Real Media (rm),文件头:2E524D46
·MPEG (mpg),文件头:000001BA
·MPEG (mpg),文件头:000001B3
·Quicktime (mov),文件头:6D6F6F76
·Windows Media (asf),文件头:3026B2758E66CF11
·MIDI (mid),文件头:4D546864