http中content-type头值－(MIME类型)
常见文件http中content-type头值－(MIME类型) .ppt–application/mspowerpoint
.ai–application/postscript
.aif–audio/x-aiff
.aifc–audio/x-aiff
.aiff–audio/x-aiff
.asc–text/plain
.au–audio/basic
.avi–video/x-msvideo
.bcpio–application/x-bcpio
.bin–application/octet-stream
.
c–text/plain
.cc–text/plain
.ccad–application/clariscad
.cdf–application/x-netcdf
.class–application/octet-stream
.cpio–application/x-cpio
.cpt–application/mac-compactpro
.csh–application/x-csh
.css–text/css
.dcr–application/x-director
.dir–application/x-director
.
dms–application/octet-stream
.doc–application/msword
.drw–application/drafting
.dvi–application/x-dvi
.dwg–application/acad
.dxf–application/dxf
.dxr–application/x-director
html特效代码时间日期.eps–application/postscript
.etx–text/x-setext
.exe–application/octet-stream
.ez–application/andrew-inset
.
f–text/plain
.f90–text/plain
.fli–video/x-fli
.gif–image/gif
.gtar–application/x-gtar
.gz–application/x-gzip
.h–text/plain
.hdf–application/x-hdf
.hh–text/plain
.hqx–application/mac-binhex40 .htm–text/html
.html–text/html
.
ice–x-conference/x-cooltalk
.ief–image/ief
.iges–model/iges
.igs–model/iges
.ips–application/x-ipscript
.ipx–application/x-ipix
.jpe–image/jpeg
.jpeg–image/jpeg
.jpg–image/jpeg
.js–application/x-javascript
.kar–audio/midi
.
latex–application/x-latex
.lha–application/octet-stream
.lsp–application/x-lisp
.lzh–application/octet-stream
.m–text/plain
.man–application/x-troff-man
.me–application/x-troff-me
.mesh–model/mesh
.mid–audio/midi
.midi–audio/midi
.mif–application/vnd.mif
.
mime–www/mime
.mov–video/quicktime
.movie–video/x-sgi-movie
.mp2–audio/mpeg
.mp3–audio/mpeg
.mpe–video/mpeg
.mpeg–video/mpeg
.mpg–video/mpeg
.mpga–audio/mpeg
.ms–application/x-troff-ms
.msh–model/mesh
.
nc–application/x-netcdf
.oda–application/oda
.pbm–image/x-portable-bitmap .pdb–chemical/x-pdb
.pdf–application/pdf
.pgm–image/x-portable-graymap .pgn–application/x-chess-pgn
.png–image/png
.pnm–image/x-portable-anymap
.pot–application/mspowerpoint
.ppm–image/x-portable-pixmap
.pps–application/mspowerpoint
.ppt–application/mspowerpoint
.
ppz–application/mspowerpoint
.pre–application/x-freelance
.prt–application/pro_eng
.ps–application/postscript
.qt–video/quicktime
.ra–audio/x-realaudio
.ram–audio/x-pn-realaudio
.ras–image/cmu-raster
.rgb–image/x-rgb
.rm–audio/x-pn-realaudio
.roff–application/x-troff
.
rpm–audio/x-pn-realaudio-plugin .rtf–text/rtf
.rtx–text/richtext
.scm–application/x-lotusscreencam .set–application/set
.sgm–text/sgml
.sgml–text/sgml
.sh–application/x-sh
.shar–application/x-shar
.silo–model/mesh
.sit–application/x-stuffit
.skd–application/x-koan
.skm–application/x-koan
.
skp–application/x-koan
.skt–application/x-koan
.smi–application/smil
.smil–application/smil
.snd–audio/basic
.sol–application/solids
.spl–application/x-futuresplash
.src–application/x-wais-source
.step–application/STEP
.stl–application/SLA
.stp–application/STEP
.
sv4cpio–application/x-sv4cpio
.sv4crc–application/x-sv4crc
.swf–application/x-shockwave-flash .t–application/x-troff
.tar–application/x-tar
.tcl–application/x-tcl
.tex–application/x-tex
.texi–application/x-texinfo
.texinfo–application/x-texinfo
.tif–image/tiff
.tiff–image/tiff
.tr–application/x-troff
.
tsi–audio/TSP-audio
.tsp–application/dsptype
.tsv–text/tab-separated-values
.txt–text/plain
.unv–application/i-deas
.ustar–application/x-ustar
.vcd–application/x-cdlink
.vda–application/vda
.viv–video/vnd.vivo
.vivo–video/vnd.vivo
.vrml–model/vrml
.
wav–audio/x-wav
.wrl–model/vrml
.xbm–image/x-xbitmap
.xlc–application/vnd.ms-excel
.xll–application/vnd.ms-excel
.xlm–application/vnd.ms-excel
.xls–application/vnd.ms-excel
.xlw–application/vnd.ms-excel
.xml–text/xml
.xpm–image/x-xpixmap
.xwd–image/x-xwindowdump
.
xyz–chemical/x-pdb
.zip–application/zip
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网页页头meta详解Content-Type,Content-Language等，意思、作用和用法
HTTP-EQUIV类似于HTTP的头部协议，它回应给浏览器一些有用的信息，以帮助正确和精确地显示网页内容。常用的HTTP-EQUIV类型有：
1、Content-Type和Content-Language(显示字符集的设定)
说明：设定页面使用的字符集，用以说明主页制作所使用的文字已经语言，浏览器会根
据此来调用相应的字符集显示page内容。
用法：<Meta http-equiv="Content-Type"Content="text/html;Charset=gb2312">
<Meta http-equiv="Content-Language"Content="zh-CN">
注意：该META标签定义了HTML页面所使用的字符集为GB2132，就是国标汉字码。如果将其中的“charset=GB2312”替换成“BIG5”，则该页面所用的字符集就是繁体中文Big5码。当你浏览一些国外的站点时，IE浏览器会提示你要正确显示该页面需要下载xx语支持。这个功能就是通过读取HTML页面META标签的Content-Type属性而得知需要使用哪种字符集显示该页面的。如果系统里没有装相应的字符集，则IE就提示下载。其他的语言也对应不同的charset，比如日文的字符集是“iso-2022-jp”，韩文的是“ks_c_5601”。
Content-Type的Content还可以是：text/xml等文档类型；
Charset选项：ISO-8859-1(英文)、BIG5、UTF-8、SHIFT-Jis、Euc、Koi8-2、us-ascii, x-mac-roman,iso-8859-2,x-mac-ce,iso-2022-jp,x-sjis,x-euc-jp,euc-kr,iso-2022-kr,gb2312, gb_2312-80,x-euc-tw,x-cns11643-1,x-cns11643-2等字符集；Content-Language的Content还可以是：EN、FR等语言代码。
2、Refresh(刷新)
说明：让网页多长时间（秒）刷新自己，或在多长时间后让网页自动链接到其它网页。
用法：<Meta http-equiv="Refresh"Content="30">
<Meta http-equiv="Refresh"Content="5;Url=www.xia8">注意：其中的5是指停留5秒钟后自动刷新到URL网址。
3、Expires(期限)
说明：指定网页在缓存中的过期时间，一旦网页过期，必须到服务器上重新调阅。
用法：<Meta http-equiv="Expires"Content="0">
<Meta http-equiv="Expires"Content="Wed,26Feb199708:21:57GMT">注意：必须使用GMT的时间格式，或直接设为0(数字表示多少时间后过期)。
4、Pragma(cach模式)
说明：禁止浏览器从本地机的缓存中调阅页面内容。
用法：<Meta http-equiv="Pragma"Content="No-cach">
注意：网页不保存在缓存中，每次访问都刷新页面。这样设定，访问者将无法脱机浏览。
5、Set-Cookie(cookie设定)
说明：浏览器访问某个页面时会将它存在缓存中，下次再次访问时就可从缓存中读取，以提高速度。当你希望访问者每次都刷新你广告的图标，或每次都刷新你的计数器，就要禁用缓存了。通常HTML文件没有必要禁用缓存，对于ASP等页面，就可以使用禁用缓存，

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