HTML 定义的一个字母标签列表
| 标签 | 说明 |
| a | 定义超链接 |
| b | 定义粗体文本 |
| i | 定义斜体文本 |
| p | 定义段落 |
| q | 定义简短的行内引用，区别于 <blockquote> 定义块引用 |
| s | 定义删除线文本，是 <strike> 的缩写，但在 HTML 4.01 不赞成使用这两个标签，推荐使用 <del> 替代，目前浏览器仍然支持 |
| u | 定义下划线文本，在 HTML 4.01 不赞成使用，目前浏览器仍然支持 |
标签： HTML5
HTTP Content-Type 对照表
Content Type 对照表
| Content-Type(Mime-Type) | 扩展名 | Content-Type(Mime-Type) | 扩展名 |
| application/fractals | .fif | application/futuresplash | .spl |
| application/hta | .hta | application/mac-binhex40 | .hqx |
| application/msaccess | .mdb | application/msword | .wiz |
| application/octet-stream | .* | application/pdf | |
| application/pics-rules | .prf | application/pkcs10 | .p10 |
| application/pkcs7-mime | .p7m | application/pkcs7-signature | .p7s |
| application/pkix-crl | .crl | application/postscript | .ai |
| application/rat-file | .rat | application/sdp | .sdp |
| application/smil | .smil | application/streamingmedia | .ssm |
| application/vnd.adobe.edn | .edn | application/vnd.adobe.pdx | .pdx |
| application/vnd.adobe.rmf | .rmf | application/vnd.adobe.workflow | .awf |
| application/vnd.adobe.xdp | .xdp | application/vnd.adobe.xfd | .xfd |
| application/vnd.adobe.xfdf | .xfdf | application/vnd.android.package-archive | .apk |
| application/vnd.fdf | .fdf | application/vnd.iphone | .ipa |
| application/vnd.ms-excel | .xls | application/vnd.ms-pki.certstore | .sst |
| application/vnd.ms-pki.pko | .pko | application/vnd.ms-pki.seccat | .cat |
| application/vnd.ms-pki.stl | .stl | application/vnd.ms-powerpoint | .pwz |
| application/vnd.ms-project | .mpx | application/vnd.ms-wpl | .wpl |
| application/vnd.rn-realmedia | .rm | application/vnd.rn-realmedia-secure | .rms |
| application/vnd.rn-realmedia-vbr | .rmvb | application/vnd.rn-realplayer | .rnx |
| application/vnd.rn-realsystem-rjs | .rjs | application/vnd.rn-realsystem-rjt | .rjt |
| application/vnd.rn-realsystem-rmj | .rmj | application/vnd.rn-realsystem-rmx | .rmx |
| application/vnd.rn-recording | .rec | application/vnd.rn-rn_music_package | .rmp |
| application/vnd.rn-rsml | .rsml | application/vnd.symbian.install | .sisx |
| application/vnd.visio | .vtx | application/x-001 | .001 |
| application/x-301 | .301 | application/x-906 | .906 |
| application/x-a11 | .a11 | application/x-anv | .anv |
| application/x-bittorrent | .torrent | application/x-bmp | .bmp |
| application/x-bot | .bot | application/x-c4t | .c4t |
| application/x-c90 | .c90 | application/x-cals | .cal |
| application/x-cdr | .cdr | application/x-cel | .cel |
| application/x-cgm | .cgm | application/x-cit | .cit |
| application/x-cmp | .cmp | application/x-cmx | .cmx |
| application/x-cot | .cot | application/x-csi | .csi |
| application/x-cut | .cut | application/x-dbf | .dbf |
| application/x-dbm | .dbm | application/x-dbx | .dbx |
| application/x-dcx | .dcx | application/x-dgn | .dgn |
| application/x-dib | .dib | application/x-drw | .drw |
| application/x-dwf | .dwf | application/x-dwg | .dwg |
| application/x-dxb | .dxb | application/x-dxf | .dxf |
| application/x-ebx | .etd | application/x-emf | .emf |
| application/x-epi | .epi | application/x-frm | .frm |
| application/x-g4 | .ig4 | application/x-gbr | .gbr |
| application/x-gl2 | .gl2 | application/x-gp4 | .gp4 |
| application/x-hgl | .hgl | application/x-hmr | .hmr |
| application/x-hpgl | .hpg | application/x-hpl | .hpl |
| application/x-hrf | .hrf | application/x-icb | .icb |
| application/x-icq | .uin | application/x-iff | .iff |
| application/x-igs | .igs | application/x-img | .img |
| application/x-internet-signup | .isp | application/x-iphone | .iii |
| application/x-javascript | .mocha | application/x-laplayer-reg | .lar |
| application/x-latex | .latex | application/x-lbm | .lbm |
| application/x-ltr | .ltr | application/x-mac | .mac |
| application/x-mi | .mi | application/x-mil | .mil |
| application/x-mmxp | .mxp | application/x-ms-wmd | .wmd |
| application/x-ms-wmz | .wmz | application/x-msdownload | .exe |
| application/x-netcdf | .cdf | application/x-nrf | .nrf |
| application/x-out | .out | application/x-pc5 | .pc5 |
| application/x-pci | .pci | application/x-pcl | .pcl |
| application/x-pcx | .pcx | application/x-perl | .pl |
| application/x-pgl | .pgl | application/x-pic | .pic |
| application/x-pkcs12 | .pfx | application/x-pkcs7-certificates | .spc |
| application/x-pkcs7-certreqresp | .p7r | application/x-plt | .plt |
| application/x-ppm | .ppm | application/x-pr | .pr |
| application/x-prn | .prn | application/x-prt | .prt |
| application/x-ps | .ps | application/x-ptn | .ptn |
| application/x-ras | .ras | application/x-red | .red |
| application/x-rgb | .rgb | application/x-rlc | .rlc |
| application/x-rle | .rle | application/x-sam | .sam |
| application/x-sat | .sat | application/x-sdw | .sdw |
| application/x-shockwave-flash | .swf | application/x-silverlight-app | .xap |
| application/x-slb | .slb | application/x-sld | .sld |
| application/x-smk | .smk | application/x-stuffit | .sit |
| application/x-sty | .sty | application/x-tdf | .tdf |
| application/x-tg4 | .tg4 | application/x-tga | .tga |
| application/x-troff-man | .man | application/x-vda | .vda |
| application/x-vpeg005 | .vpg | application/x-wb1 | .wb1 |
| application/x-wb2 | .wb2 | application/x-wb3 | .wb3 |
| application/x-wk3 | .wk3 | application/x-wk4 | .wk4 |
| application/x-wkq | .wkq | application/x-wks | .wks |
| application/x-wmf | .wmf | application/x-wp6 | .wp6 |
| application/x-wpd | .wpd | application/x-wpg | .wpg |
| application/x-wq1 | .wq1 | application/x-wr1 | .wr1 |
| application/x-wri | .wri | application/x-wrk | .wrk |
| application/x-ws | .ws2 | application/x-x509-ca-cert | .der |
| application/x-x_b | .x_b | application/x-x_t | .x_t |
| application/x-xlw | .xlw | application/x-xwd | .xwd |
| audio/aiff | .aiff | audio/basic | .snd |
| audio/mid | .rmi | audio/mp1 | .mp1 |
| audio/mp2 | .mp2 | audio/mp3 | .mp3 |
| audio/mpegurl | .m3u | audio/rn-mpeg | .mpga |
| audio/scpls | .xpl | audio/vnd.rn-realaudio | .ra |
| audio/wav | .wav | audio/x-la-lms | .lmsff |
| audio/x-liquid-file | .la1 | audio/x-liquid-secure | .lavs |
| audio/x-mei-aac | .acp | audio/x-ms-wax | .wax |
| audio/x-ms-wma | .wma | audio/x-musicnet-download | .mnd |
| audio/x-musicnet-stream | .mns | audio/x-pn-realaudio | .rmm |
| audio/x-pn-realaudio-plugin | .rpm | drawing/907 | .907 |
| drawing/x-slk | .slk | drawing/x-top | .top |
| image/fax | .fax | image/gif | .gif |
| image/jpeg | .jpg | image/pnetvue | .net |
| image/png | .png | image/tiff | .tiff |
| image/vnd.rn-realpix | .rp | image/vnd.wap.wbmp | .wbmp |
| image/x-icon | .ico | java/* | .java |
| java/class | .class | message/rfc822 | .nws |
| text/asa | .asa | text/asp | .asp |
| text/css | .css | text/h323 | .323 |
| text/html | .xhtml | text/iuls | .uls |
| text/plain | .txt | text/scriptlet | .wsc |
| text/vnd.rn-realtext | .rt | text/vnd.rn-realtext3d | .r3t |
| text/vnd.wap.wml | .wml | text/webviewhtml | .htt |
| text/x-component | .htc | text/x-ms-odc | .odc |
| text/x-vcard | .vcf | text/xml | .xslt |
| video/avi | .avi | video/mpeg | .mpv2 |
| video/mpeg4 | .mp4 | video/mpg | .mpv |
| video/vnd.rn-realvideo | .rv | video/x-ivf | .IVF |
| video/x-mpeg | .mps | video/x-mpg | .mpa |
| video/x-ms-asf | .asx | video/x-ms-wm | .wm |
| video/x-ms-wmv | .wmv | video/x-ms-wmx | .wmx |
| video/x-ms-wvx | .wvx | video/x-sgi-movie | .movie |
PHP 数组
$ar_type = array( '*' => 'application/octet-stream', '001' => 'application/x-001', '301' => 'application/x-301', '323' => 'text/h323', '906' => 'application/x-906', '907' => 'drawing/907', 'IVF' => 'video/x-ivf', 'a11' => 'application/x-a11', 'acp' => 'audio/x-mei-aac', 'ai' => 'application/postscript', 'aif' => 'audio/aiff', 'aifc' => 'audio/aiff', 'aiff' => 'audio/aiff', 'anv' => 'application/x-anv', 'apk' => 'application/vnd.android.package-archive', 'asa' => 'text/asa', 'asf' => 'video/x-ms-asf', 'asp' => 'text/asp', 'asx' => 'video/x-ms-asf', 'au' => 'audio/basic', 'avi' => 'video/avi', 'awf' => 'application/vnd.adobe.workflow', 'biz' => 'text/xml', 'bmp' => 'application/x-bmp', 'bot' => 'application/x-bot', 'c4t' => 'application/x-c4t', 'c90' => 'application/x-c90', 'cal' => 'application/x-cals', 'cat' => 'application/vnd.ms-pki.seccat', 'cdf' => 'application/x-netcdf', 'cdr' => 'application/x-cdr', 'cel' => 'application/x-cel', 'cer' => 'application/x-x509-ca-cert', 'cg4' => 'application/x-g4', 'cgm' => 'application/x-cgm', 'cit' => 'application/x-cit', 'class' => 'java/class', 'cml' => 'text/xml', 'cmp' => 'application/x-cmp', 'cmx' => 'application/x-cmx', 'cot' => 'application/x-cot', 'crl' => 'application/pkix-crl', 'crt' => 'application/x-x509-ca-cert', 'csi' => 'application/x-csi', 'css' => 'text/css', 'cut' => 'application/x-cut', 'dbf' => 'application/x-dbf', 'dbm' => 'application/x-dbm', 'dbx' => 'application/x-dbx', 'dcd' => 'text/xml', 'dcx' => 'application/x-dcx', 'der' => 'application/x-x509-ca-cert', 'dgn' => 'application/x-dgn', 'dib' => 'application/x-dib', 'dll' => 'application/x-msdownload', 'doc' => 'application/msword', 'dot' => 'application/msword', 'drw' => 'application/x-drw', 'dtd' => 'text/xml', 'dwf' => 'application/x-dwf', 'dwg' => 'application/x-dwg', 'dxb' => 'application/x-dxb', 'dxf' => 'application/x-dxf', 'edn' => 'application/vnd.adobe.edn', 'emf' => 'application/x-emf', 'eml' => 'message/rfc822', 'ent' => 'text/xml', 'epi' => 'application/x-epi', 'eps' => 'application/x-ps', 'etd' => 'application/x-ebx', 'exe' => 'application/x-msdownload', 'fax' => 'image/fax', 'fdf' => 'application/vnd.fdf', 'fif' => 'application/fractals', 'fo' => 'text/xml', 'frm' => 'application/x-frm', 'g4' => 'application/x-g4', 'gbr' => 'application/x-gbr', 'gif' => 'image/gif', 'gl2' => 'application/x-gl2', 'gp4' => 'application/x-gp4', 'hgl' => 'application/x-hgl', 'hmr' => 'application/x-hmr', 'hpg' => 'application/x-hpgl', 'hpl' => 'application/x-hpl', 'hqx' => 'application/mac-binhex40', 'hrf' => 'application/x-hrf', 'hta' => 'application/hta', 'htc' => 'text/x-component', 'htm' => 'text/html', 'html' => 'text/html', 'htt' => 'text/webviewhtml', 'htx' => 'text/html', 'icb' => 'application/x-icb', 'ico' => 'image/x-icon', 'iff' => 'application/x-iff', 'ig4' => 'application/x-g4', 'igs' => 'application/x-igs', 'iii' => 'application/x-iphone', 'img' => 'application/x-img', 'ins' => 'application/x-internet-signup', 'ipa' => 'application/vnd.iphone', 'isp' => 'application/x-internet-signup', 'java' => 'java/*', 'jfif' => 'image/jpeg', 'jpe' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg', 'js' => 'application/x-javascript', 'jsp' => 'text/html', 'la1' => 'audio/x-liquid-file', 'lar' => 'application/x-laplayer-reg', 'latex' => 'application/x-latex', 'lavs' => 'audio/x-liquid-secure', 'lbm' => 'application/x-lbm', 'lmsff' => 'audio/x-la-lms', 'ls' => 'application/x-javascript', 'ltr' => 'application/x-ltr', 'm1v' => 'video/x-mpeg', 'm2v' => 'video/x-mpeg', 'm3u' => 'audio/mpegurl', 'm4e' => 'video/mpeg4', 'mac' => 'application/x-mac', 'man' => 'application/x-troff-man', 'math' => 'text/xml', 'mdb' => 'application/msaccess', 'mfp' => 'application/x-shockwave-flash', 'mht' => 'message/rfc822', 'mhtml' => 'message/rfc822', 'mi' => 'application/x-mi', 'mid' => 'audio/mid', 'midi' => 'audio/mid', 'mil' => 'application/x-mil', 'mml' => 'text/xml', 'mnd' => 'audio/x-musicnet-download', 'mns' => 'audio/x-musicnet-stream', 'mocha' => 'application/x-javascript', 'movie' => 'video/x-sgi-movie', 'mp1' => 'audio/mp1', 'mp2' => 'audio/mp2', 'mp2v' => 'video/mpeg', 'mp3' => 'audio/mp3', 'mp4' => 'video/mpeg4', 'mpa' => 'video/x-mpg', 'mpd' => 'application/vnd.ms-project', 'mpe' => 'video/x-mpeg', 'mpeg' => 'video/mpg', 'mpg' => 'video/mpg', 'mpga' => 'audio/rn-mpeg', 'mpp' => 'application/vnd.ms-project', 'mps' => 'video/x-mpeg', 'mpt' => 'application/vnd.ms-project', 'mpv' => 'video/mpg', 'mpv2' => 'video/mpeg', 'mpw' => 'application/vnd.ms-project', 'mpx' => 'application/vnd.ms-project', 'mtx' => 'text/xml', 'mxp' => 'application/x-mmxp', 'net' => 'image/pnetvue', 'nrf' => 'application/x-nrf', 'nws' => 'message/rfc822', 'odc' => 'text/x-ms-odc', 'out' => 'application/x-out', 'p10' => 'application/pkcs10', 'p12' => 'application/x-pkcs12', 'p7b' => 'application/x-pkcs7-certificates', 'p7c' => 'application/pkcs7-mime', 'p7m' => 'application/pkcs7-mime', 'p7r' => 'application/x-pkcs7-certreqresp', 'p7s' => 'application/pkcs7-signature', 'pc5' => 'application/x-pc5', 'pci' => 'application/x-pci', 'pcl' => 'application/x-pcl', 'pcx' => 'application/x-pcx', 'pdf' => 'application/pdf', 'pdx' => 'application/vnd.adobe.pdx', 'pfx' => 'application/x-pkcs12', 'pgl' => 'application/x-pgl', 'pic' => 'application/x-pic', 'pko' => 'application/vnd.ms-pki.pko', 'pl' => 'application/x-perl', 'plg' => 'text/html', 'pls' => 'audio/scpls', 'plt' => 'application/x-plt', 'png' => 'image/png', 'pot' => 'application/vnd.ms-powerpoint', 'ppa' => 'application/vnd.ms-powerpoint', 'ppm' => 'application/x-ppm', 'pps' => 'application/vnd.ms-powerpoint', 'ppt' => 'application/vnd.ms-powerpoint', 'pr' => 'application/x-pr', 'prf' => 'application/pics-rules', 'prn' => 'application/x-prn', 'prt' => 'application/x-prt', 'ps' => 'application/x-ps', 'ptn' => 'application/x-ptn', 'pwz' => 'application/vnd.ms-powerpoint', 'r3t' => 'text/vnd.rn-realtext3d', 'ra' => 'audio/vnd.rn-realaudio', 'ram' => 'audio/x-pn-realaudio', 'ras' => 'application/x-ras', 'rat' => 'application/rat-file', 'rdf' => 'text/xml', 'rec' => 'application/vnd.rn-recording', 'red' => 'application/x-red', 'rgb' => 'application/x-rgb', 'rjs' => 'application/vnd.rn-realsystem-rjs', 'rjt' => 'application/vnd.rn-realsystem-rjt', 'rlc' => 'application/x-rlc', 'rle' => 'application/x-rle', 'rm' => 'application/vnd.rn-realmedia', 'rmf' => 'application/vnd.adobe.rmf', 'rmi' => 'audio/mid', 'rmj' => 'application/vnd.rn-realsystem-rmj', 'rmm' => 'audio/x-pn-realaudio', 'rmp' => 'application/vnd.rn-rn_music_package', 'rms' => 'application/vnd.rn-realmedia-secure', 'rmvb' => 'application/vnd.rn-realmedia-vbr', 'rmx' => 'application/vnd.rn-realsystem-rmx', 'rnx' => 'application/vnd.rn-realplayer', 'rp' => 'image/vnd.rn-realpix', 'rpm' => 'audio/x-pn-realaudio-plugin', 'rsml' => 'application/vnd.rn-rsml', 'rt' => 'text/vnd.rn-realtext', 'rtf' => 'application/msword', 'rv' => 'video/vnd.rn-realvideo', 'sam' => 'application/x-sam', 'sat' => 'application/x-sat', 'sdp' => 'application/sdp', 'sdw' => 'application/x-sdw', 'sis' => 'application/vnd.symbian.install', 'sisx' => 'application/vnd.symbian.install', 'sit' => 'application/x-stuffit', 'slb' => 'application/x-slb', 'sld' => 'application/x-sld', 'slk' => 'drawing/x-slk', 'smi' => 'application/smil', 'smil' => 'application/smil', 'smk' => 'application/x-smk', 'snd' => 'audio/basic', 'sol' => 'text/plain', 'sor' => 'text/plain', 'spc' => 'application/x-pkcs7-certificates', 'spl' => 'application/futuresplash', 'spp' => 'text/xml', 'ssm' => 'application/streamingmedia', 'sst' => 'application/vnd.ms-pki.certstore', 'stl' => 'application/vnd.ms-pki.stl', 'stm' => 'text/html', 'sty' => 'application/x-sty', 'svg' => 'text/xml', 'swf' => 'application/x-shockwave-flash', 'tdf' => 'application/x-tdf', 'tg4' => 'application/x-tg4', 'tga' => 'application/x-tga', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'tld' => 'text/xml', 'top' => 'drawing/x-top', 'torrent' => 'application/x-bittorrent', 'tsd' => 'text/xml', 'txt' => 'text/plain', 'uin' => 'application/x-icq', 'uls' => 'text/iuls', 'vcf' => 'text/x-vcard', 'vda' => 'application/x-vda', 'vdx' => 'application/vnd.visio', 'vml' => 'text/xml', 'vpg' => 'application/x-vpeg005', 'vsd' => 'application/vnd.visio', 'vss' => 'application/vnd.visio', 'vst' => 'application/vnd.visio', 'vsw' => 'application/vnd.visio', 'vsx' => 'application/vnd.visio', 'vtx' => 'application/vnd.visio', 'vxml' => 'text/xml', 'wav' => 'audio/wav', 'wax' => 'audio/x-ms-wax', 'wb1' => 'application/x-wb1', 'wb2' => 'application/x-wb2', 'wb3' => 'application/x-wb3', 'wbmp' => 'image/vnd.wap.wbmp', 'wiz' => 'application/msword', 'wk3' => 'application/x-wk3', 'wk4' => 'application/x-wk4', 'wkq' => 'application/x-wkq', 'wks' => 'application/x-wks', 'wm' => 'video/x-ms-wm', 'wma' => 'audio/x-ms-wma', 'wmd' => 'application/x-ms-wmd', 'wmf' => 'application/x-wmf', 'wml' => 'text/vnd.wap.wml', 'wmv' => 'video/x-ms-wmv', 'wmx' => 'video/x-ms-wmx', 'wmz' => 'application/x-ms-wmz', 'wp6' => 'application/x-wp6', 'wpd' => 'application/x-wpd', 'wpg' => 'application/x-wpg', 'wpl' => 'application/vnd.ms-wpl', 'wq1' => 'application/x-wq1', 'wr1' => 'application/x-wr1', 'wri' => 'application/x-wri', 'wrk' => 'application/x-wrk', 'ws' => 'application/x-ws', 'ws2' => 'application/x-ws', 'wsc' => 'text/scriptlet', 'wsdl' => 'text/xml', 'wvx' => 'video/x-ms-wvx', 'x_b' => 'application/x-x_b', 'x_t' => 'application/x-x_t', 'xap' => 'application/x-silverlight-app', 'xdp' => 'application/vnd.adobe.xdp', 'xdr' => 'text/xml', 'xfd' => 'application/vnd.adobe.xfd', 'xfdf' => 'application/vnd.adobe.xfdf', 'xhtml' => 'text/html', 'xls' => 'application/vnd.ms-excel', 'xlw' => 'application/x-xlw', 'xml' => 'text/xml', 'xpl' => 'audio/scpls', 'xq' => 'text/xml', 'xql' => 'text/xml', 'xquery' => 'text/xml', 'xsd' => 'text/xml', 'xsl' => 'text/xml', 'xslt' => 'text/xml', 'xwd' => 'application/x-xwd', );
JSON 字符串
{"*":"application\/octet-stream","001":"application\/x-001","301":"application\/x-301","323":"text\/h323","906":"application\/x-906","907":"drawing\/907","IVF":"video\/x-ivf","a11":"application\/x-a11","acp":"audio\/x-mei-aac","ai":"application\/postscript","aif":"audio\/aiff","aifc":"audio\/aiff","aiff":"audio\/aiff","anv":"application\/x-anv","apk":"application\/vnd.android.package-archive","asa":"text\/asa","asf":"video\/x-ms-asf","asp":"text\/asp","asx":"video\/x-ms-asf","au":"audio\/basic","avi":"video\/avi","awf":"application\/vnd.adobe.workflow","biz":"text\/xml","bmp":"application\/x-bmp","bot":"application\/x-bot","c4t":"application\/x-c4t","c90":"application\/x-c90","cal":"application\/x-cals","cat":"application\/vnd.ms-pki.seccat","cdf":"application\/x-netcdf","cdr":"application\/x-cdr","cel":"application\/x-cel","cer":"application\/x-x509-ca-cert","cg4":"application\/x-g4","cgm":"application\/x-cgm","cit":"application\/x-cit","class":"java\/class","cml":"text\/xml","cmp":"application\/x-cmp","cmx":"application\/x-cmx","cot":"application\/x-cot","crl":"application\/pkix-crl","crt":"application\/x-x509-ca-cert","csi":"application\/x-csi","css":"text\/css","cut":"application\/x-cut","dbf":"application\/x-dbf","dbm":"application\/x-dbm","dbx":"application\/x-dbx","dcd":"text\/xml","dcx":"application\/x-dcx","der":"application\/x-x509-ca-cert","dgn":"application\/x-dgn","dib":"application\/x-dib","dll":"application\/x-msdownload","doc":"application\/msword","dot":"application\/msword","drw":"application\/x-drw","dtd":"text\/xml","dwf":"application\/x-dwf","dwg":"application\/x-dwg","dxb":"application\/x-dxb","dxf":"application\/x-dxf","edn":"application\/vnd.adobe.edn","emf":"application\/x-emf","eml":"message\/rfc822","ent":"text\/xml","epi":"application\/x-epi","eps":"application\/x-ps","etd":"application\/x-ebx","exe":"application\/x-msdownload","fax":"image\/fax","fdf":"application\/vnd.fdf","fif":"application\/fractals","fo":"text\/xml","frm":"application\/x-frm","g4":"application\/x-g4","gbr":"application\/x-gbr","gif":"image\/gif","gl2":"application\/x-gl2","gp4":"application\/x-gp4","hgl":"application\/x-hgl","hmr":"application\/x-hmr","hpg":"application\/x-hpgl","hpl":"application\/x-hpl","hqx":"application\/mac-binhex40","hrf":"application\/x-hrf","hta":"application\/hta","htc":"text\/x-component","htm":"text\/html","html":"text\/html","htt":"text\/webviewhtml","htx":"text\/html","icb":"application\/x-icb","ico":"image\/x-icon","iff":"application\/x-iff","ig4":"application\/x-g4","igs":"application\/x-igs","iii":"application\/x-iphone","img":"application\/x-img","ins":"application\/x-internet-signup","ipa":"application\/vnd.iphone","isp":"application\/x-internet-signup","java":"java\/*","jfif":"image\/jpeg","jpe":"image\/jpeg","jpeg":"image\/jpeg","jpg":"image\/jpeg","js":"application\/x-javascript","jsp":"text\/html","la1":"audio\/x-liquid-file","lar":"application\/x-laplayer-reg","latex":"application\/x-latex","lavs":"audio\/x-liquid-secure","lbm":"application\/x-lbm","lmsff":"audio\/x-la-lms","ls":"application\/x-javascript","ltr":"application\/x-ltr","m1v":"video\/x-mpeg","m2v":"video\/x-mpeg","m3u":"audio\/mpegurl","m4e":"video\/mpeg4","mac":"application\/x-mac","man":"application\/x-troff-man","math":"text\/xml","mdb":"application\/msaccess","mfp":"application\/x-shockwave-flash","mht":"message\/rfc822","mhtml":"message\/rfc822","mi":"application\/x-mi","mid":"audio\/mid","midi":"audio\/mid","mil":"application\/x-mil","mml":"text\/xml","mnd":"audio\/x-musicnet-download","mns":"audio\/x-musicnet-stream","mocha":"application\/x-javascript","movie":"video\/x-sgi-movie","mp1":"audio\/mp1","mp2":"audio\/mp2","mp2v":"video\/mpeg","mp3":"audio\/mp3","mp4":"video\/mpeg4","mpa":"video\/x-mpg","mpd":"application\/vnd.ms-project","mpe":"video\/x-mpeg","mpeg":"video\/mpg","mpg":"video\/mpg","mpga":"audio\/rn-mpeg","mpp":"application\/vnd.ms-project","mps":"video\/x-mpeg","mpt":"application\/vnd.ms-project","mpv":"video\/mpg","mpv2":"video\/mpeg","mpw":"application\/vnd.ms-project","mpx":"application\/vnd.ms-project","mtx":"text\/xml","mxp":"application\/x-mmxp","net":"image\/pnetvue","nrf":"application\/x-nrf","nws":"message\/rfc822","odc":"text\/x-ms-odc","out":"application\/x-out","p10":"application\/pkcs10","p12":"application\/x-pkcs12","p7b":"application\/x-pkcs7-certificates","p7c":"application\/pkcs7-mime","p7m":"application\/pkcs7-mime","p7r":"application\/x-pkcs7-certreqresp","p7s":"application\/pkcs7-signature","pc5":"application\/x-pc5","pci":"application\/x-pci","pcl":"application\/x-pcl","pcx":"application\/x-pcx","pdf":"application\/pdf","pdx":"application\/vnd.adobe.pdx","pfx":"application\/x-pkcs12","pgl":"application\/x-pgl","pic":"application\/x-pic","pko":"application\/vnd.ms-pki.pko","pl":"application\/x-perl","plg":"text\/html","pls":"audio\/scpls","plt":"application\/x-plt","png":"image\/png","pot":"application\/vnd.ms-powerpoint","ppa":"application\/vnd.ms-powerpoint","ppm":"application\/x-ppm","pps":"application\/vnd.ms-powerpoint","ppt":"application\/vnd.ms-powerpoint","pr":"application\/x-pr","prf":"application\/pics-rules","prn":"application\/x-prn","prt":"application\/x-prt","ps":"application\/x-ps","ptn":"application\/x-ptn","pwz":"application\/vnd.ms-powerpoint","r3t":"text\/vnd.rn-realtext3d","ra":"audio\/vnd.rn-realaudio","ram":"audio\/x-pn-realaudio","ras":"application\/x-ras","rat":"application\/rat-file","rdf":"text\/xml","rec":"application\/vnd.rn-recording","red":"application\/x-red","rgb":"application\/x-rgb","rjs":"application\/vnd.rn-realsystem-rjs","rjt":"application\/vnd.rn-realsystem-rjt","rlc":"application\/x-rlc","rle":"application\/x-rle","rm":"application\/vnd.rn-realmedia","rmf":"application\/vnd.adobe.rmf","rmi":"audio\/mid","rmj":"application\/vnd.rn-realsystem-rmj","rmm":"audio\/x-pn-realaudio","rmp":"application\/vnd.rn-rn_music_package","rms":"application\/vnd.rn-realmedia-secure","rmvb":"application\/vnd.rn-realmedia-vbr","rmx":"application\/vnd.rn-realsystem-rmx","rnx":"application\/vnd.rn-realplayer","rp":"image\/vnd.rn-realpix","rpm":"audio\/x-pn-realaudio-plugin","rsml":"application\/vnd.rn-rsml","rt":"text\/vnd.rn-realtext","rtf":"application\/msword","rv":"video\/vnd.rn-realvideo","sam":"application\/x-sam","sat":"application\/x-sat","sdp":"application\/sdp","sdw":"application\/x-sdw","sis":"application\/vnd.symbian.install","sisx":"application\/vnd.symbian.install","sit":"application\/x-stuffit","slb":"application\/x-slb","sld":"application\/x-sld","slk":"drawing\/x-slk","smi":"application\/smil","smil":"application\/smil","smk":"application\/x-smk","snd":"audio\/basic","sol":"text\/plain","sor":"text\/plain","spc":"application\/x-pkcs7-certificates","spl":"application\/futuresplash","spp":"text\/xml","ssm":"application\/streamingmedia","sst":"application\/vnd.ms-pki.certstore","stl":"application\/vnd.ms-pki.stl","stm":"text\/html","sty":"application\/x-sty","svg":"text\/xml","swf":"application\/x-shockwave-flash","tdf":"application\/x-tdf","tg4":"application\/x-tg4","tga":"application\/x-tga","tif":"image\/tiff","tiff":"image\/tiff","tld":"text\/xml","top":"drawing\/x-top","torrent":"application\/x-bittorrent","tsd":"text\/xml","txt":"text\/plain","uin":"application\/x-icq","uls":"text\/iuls","vcf":"text\/x-vcard","vda":"application\/x-vda","vdx":"application\/vnd.visio","vml":"text\/xml","vpg":"application\/x-vpeg005","vsd":"application\/vnd.visio","vss":"application\/vnd.visio","vst":"application\/vnd.visio","vsw":"application\/vnd.visio","vsx":"application\/vnd.visio","vtx":"application\/vnd.visio","vxml":"text\/xml","wav":"audio\/wav","wax":"audio\/x-ms-wax","wb1":"application\/x-wb1","wb2":"application\/x-wb2","wb3":"application\/x-wb3","wbmp":"image\/vnd.wap.wbmp","wiz":"application\/msword","wk3":"application\/x-wk3","wk4":"application\/x-wk4","wkq":"application\/x-wkq","wks":"application\/x-wks","wm":"video\/x-ms-wm","wma":"audio\/x-ms-wma","wmd":"application\/x-ms-wmd","wmf":"application\/x-wmf","wml":"text\/vnd.wap.wml","wmv":"video\/x-ms-wmv","wmx":"video\/x-ms-wmx","wmz":"application\/x-ms-wmz","wp6":"application\/x-wp6","wpd":"application\/x-wpd","wpg":"application\/x-wpg","wpl":"application\/vnd.ms-wpl","wq1":"application\/x-wq1","wr1":"application\/x-wr1","wri":"application\/x-wri","wrk":"application\/x-wrk","ws":"application\/x-ws","ws2":"application\/x-ws","wsc":"text\/scriptlet","wsdl":"text\/xml","wvx":"video\/x-ms-wvx","x_b":"application\/x-x_b","x_t":"application\/x-x_t","xap":"application\/x-silverlight-app","xdp":"application\/vnd.adobe.xdp","xdr":"text\/xml","xfd":"application\/vnd.adobe.xfd","xfdf":"application\/vnd.adobe.xfdf","xhtml":"text\/html","xls":"application\/vnd.ms-excel","xlw":"application\/x-xlw","xml":"text\/xml","xpl":"audio\/scpls","xq":"text\/xml","xql":"text\/xml","xquery":"text\/xml","xsd":"text\/xml","xsl":"text\/xml","xslt":"text\/xml","xwd":"application\/x-xwd"}
使用html新属性download自定义下载文件
在 HTML5 中可以设置 a 标签的 download 属性，实现点击超链接时直接下载文件而不是打开超链接。
代码示例：
<a href="woxinfeishi-bukezhuanye.jpg" download="我心匪石.jpg">点击下载图片</a>
Demo 示例：html-download.html
目前该属性仅 Chrome、Firefox 支持。
使用 download 属性需要注意，只有同域（来源相同）时才会得到完整支持。这一点 w3school 并没有明确指出。Mozilla 的开发文档里有一行小字：This attribute is only honored for links to resources with the same-origin.
在 Chrome 下，当 href 不同域，会以原始的名称下载文件。在 Firefox 下，当 href 不同域时，会当做普通 a 处理，直接在浏览器中打开该连接。
我们知道通过程序下载文件时，设置 Content-Disposition 头信息，可以告诉浏览器文件存储的名字。火狐浏览器会优先使用 Content-Disposition 给出的文件名。
键盘数值对照表
键盘数值对照表
| 按键 | 数值 | 描述 |
| DOM_VK_CANCEL | 3 | Cancel key |
| DOM_VK_HELP | 6 | Help key |
| DOM_VK_BACK_SPACE | 8 | 退格键 |
| DOM_VK_TAB | 9 | Tab键 |
| DOM_VK_CLEAR | 12 | “5” key on Numpad when NumLock is unlocked. Or on Mac, clear key which is positioned at NumLock key |
| DOM_VK_RETURN | 13 | Return/enter key on the main keyboard |
| DOM_VK_ENTER | 14 | Reserved, but not used |
| DOM_VK_SHIFT | 16 | Shift 键 |
| DOM_VK_CONTROL | 17 | Ctrl 键 |
| DOM_VK_ALT | 18 | Alt 键(Mac上为Option 键) |
| DOM_VK_PAUSE | 19 | Pause key |
| DOM_VK_CAPS_LOCK | 20 | Caps lock |
| DOM_VK_ESCAPE | 27 | Escape 键 |
| DOM_VK_SPACE | 32 | 空格键 |
| DOM_VK_PAGE_UP | 33 | Page Up key |
| DOM_VK_PAGE_DOWN | 34 | Page Down key |
| DOM_VK_END | 35 | End key |
| DOM_VK_HOME | 36 | Home key |
| DOM_VK_LEFT | 37 | Left arrow |
| DOM_VK_UP | 38 | Up arrow |
| DOM_VK_RIGHT | 39 | Right arrow |
| DOM_VK_DOWN | 40 | Down arrow |
| DOM_VK_SELECT | 41 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_PRINT | 42 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_EXECUTE | 43 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_PRINTSCREEN | 44 | Print Screen key |
| DOM_VK_INSERT | 45 | Ins(ert) key |
| DOM_VK_DELETE | 46 | Del(ete) key |
| DOM_VK_0 | 48 | |
| DOM_VK_1 | 49 | |
| DOM_VK_2 | 50 | |
| DOM_VK_3 | 51 | |
| DOM_VK_4 | 52 | |
| DOM_VK_5 | 53 | |
| DOM_VK_6 | 54 | |
| DOM_VK_7 | 55 | |
| DOM_VK_8 | 56 | |
| DOM_VK_9 | 57 | |
| DOM_VK_COLON | 58 | Colon (“:”) key |
| DOM_VK_SEMICOLON | 59 | Semicolon (“;”) key |
| DOM_VK_LESS_THAN | 60 | Less-than (“<“) key |
| DOM_VK_EQUALS | 61 | Equals (“=”) key |
| DOM_VK_GREATER_THAN | 62 | Greater-than (“>”) key |
| DOM_VK_QUESTION_MARK | 63 | Question mark (“?”) key |
| DOM_VK_AT | 64 | Atmark (“@”) key |
| DOM_VK_A | 65 | |
| DOM_VK_B | 66 | |
| DOM_VK_C | 67 | |
| DOM_VK_D | 68 | |
| DOM_VK_E | 69 | |
| DOM_VK_F | 70 | |
| DOM_VK_G | 71 | |
| DOM_VK_H | 72 | |
| DOM_VK_I | 73 | |
| DOM_VK_J | 74 | |
| DOM_VK_K | 75 | |
| DOM_VK_L | 76 | |
| DOM_VK_M | 77 | |
| DOM_VK_N | 78 | |
| DOM_VK_O | 79 | |
| DOM_VK_P | 80 | |
| DOM_VK_Q | 81 | |
| DOM_VK_R | 82 | |
| DOM_VK_S | 83 | |
| DOM_VK_T | 84 | |
| DOM_VK_U | 85 | |
| DOM_VK_V | 86 | |
| DOM_VK_W | 87 | |
| DOM_VK_X | 88 | |
| DOM_VK_Y | 89 | |
| DOM_VK_Z | 90 | |
| DOM_VK_CONTEXT_MENU | 93 | |
| DOM_VK_NUMPAD0 | 96 | 0 on the numeric keypad |
| DOM_VK_NUMPAD1 | 97 | 1 on the numeric keypad |
| DOM_VK_NUMPAD2 | 98 | 2 on the numeric keypad |
| DOM_VK_NUMPAD3 | 99 | 3 on the numeric keypad |
| DOM_VK_NUMPAD4 | 100 | 4 on the numeric keypad |
| DOM_VK_NUMPAD5 | 101 | 5 on the numeric keypad |
| DOM_VK_NUMPAD6 | 102 | 6 on the numeric keypad |
| DOM_VK_NUMPAD7 | 103 | 7 on the numeric keypad |
| DOM_VK_NUMPAD8 | 104 | 8 on the numeric keypad |
| DOM_VK_NUMPAD9 | 105 | 9 on the numeric keypad |
| DOM_VK_MULTIPLY | 106 | * on the numeric keypad |
| DOM_VK_ADD | 107 | + on the numeric keypad |
| DOM_VK_SEPARATOR | 108 | |
| DOM_VK_SUBTRACT | 109 | – on the numeric keypad |
| DOM_VK_DECIMAL | 110 | Decimal point on the numeric keypad |
| DOM_VK_DIVIDE | 111 | / on the numeric keypad |
| DOM_VK_F1 | 112 | F1 键 |
| DOM_VK_F2 | 113 | F2 键 |
| DOM_VK_F3 | 114 | F3 键 |
| DOM_VK_F4 | 115 | F4 键 |
| DOM_VK_F5 | 116 | F5 键 |
| DOM_VK_F6 | 117 | F6 键 |
| DOM_VK_F7 | 118 | F7 键 |
| DOM_VK_F8 | 119 | F8 键 |
| DOM_VK_F9 | 120 | F9 键 |
| DOM_VK_F10 | 121 | F10 键 |
| DOM_VK_F11 | 122 | F11 键 |
| DOM_VK_F12 | 123 | F12 键 |
| DOM_VK_F13 | 124 | F13 键 |
| DOM_VK_F14 | 125 | F14 键 |
| DOM_VK_F15 | 126 | F15 键 |
| DOM_VK_F16 | 127 | F16 键 |
| DOM_VK_F17 | 128 | F17 键 |
| DOM_VK_F18 | 129 | F18 键 |
| DOM_VK_F19 | 130 | F19 键 |
| DOM_VK_F20 | 131 | F20 键 |
| DOM_VK_F21 | 132 | F21 键 |
| DOM_VK_F22 | 133 | F22 键 |
| DOM_VK_F23 | 134 | F23 键 |
| DOM_VK_F24 | 135 | F24 键 |
| DOM_VK_NUM_LOCK | 144 | Num Lock key |
| DOM_VK_SCROLL_LOCK | 145 | Scroll Lock key |
| DOM_VK_CIRCUMFLEX | 160 | Circumflex (“^”) key |
| DOM_VK_EXCLAMATION | 161 | Exclamation (“!”) key |
| DOM_VK_DOUBLE_QUOTE | 162 | Double quote (“””) key |
| DOM_VK_HASH | 163 | Hash (“#”) key |
| DOM_VK_DOLLAR | 164 | Dollar sign (“$”) key |
| DOM_VK_PERCENT | 165 | Percent (“%”) key |
| DOM_VK_AMPERSAND | 166 | Ampersand (“&”) key |
| DOM_VK_UNDERSCORE | 167 | Underscore (“_”) key |
| DOM_VK_OPEN_PAREN | 168 | Open parenthesis (“(“) key |
| DOM_VK_CLOSE_PAREN | 169 | Close parenthesis (“)”) key |
| DOM_VK_ASTERISK | 170 | Asterisk (“*”) key |
| DOM_VK_PLUS | 171 | Plus (“+”) key |
| DOM_VK_PIPE | 172 | Pipe (“|”) key |
| DOM_VK_HYPHEN_MINUS | 173 | Hyphen/Minus (“-“) key |
| DOM_VK_OPEN_CURLY_BRACKET | 174 | Open curly bracket (“{“) key |
| DOM_VK_CLOSE_CURLY_BRACKET | 175 | Close curly bracket (“}”) key |
| DOM_VK_TILDE | 176 | Tilde (“~”) key |
| DOM_VK_COMMA | 188 | Comma (“,”) key |
| DOM_VK_PERIOD | 190 | Period (“.”) key |
| DOM_VK_SLASH | 191 | Slash (“/”) key |
| DOM_VK_BACK_QUOTE | 192 | Back tick (“`”) key |
| DOM_VK_OPEN_BRACKET | 219 | Open square bracket (“[“) key |
| DOM_VK_BACK_SLASH | 220 | Back slash (“\”) key |
| DOM_VK_CLOSE_BRACKET | 221 | Close square bracket (“]”) key |
| DOM_VK_QUOTE | 222 | Quote (”’) key |
| DOM_VK_META | 224 | Command key on Mac |
| DOM_VK_ALTGR | 225 | AltGr key on Linux |
| DOM_VK_WIN | 91 | Windows logo key on Windows. Or Super or Hyper key on Linux |
| DOM_VK_KANA | 21 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_EISU | 22 | “英数” key on Japanese Mac keyboard |
| DOM_VK_JUNJA | 23 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_FINAL | 24 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_HANJA | 25 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_KANJI | 25 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_CONVERT | 28 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_NONCONVERT | 29 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_ACCEPT | 30 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_MODECHANGE | 31 | Linux support for this keycode was added in Gecko 4.0 |
| DOM_VK_SLEEP | 95 | Linux support for this keycode was added in Gecko 4.0 |
数值到按键名对照关系
var mapCodeName = {
3: "cancel",
6: "help",
8: "back_space",
9: "tab",
12: "clear",
13: "return",
14: "enter",
16: "shift",
17: "control",
18: "alt",
19: "pause",
20: "caps_lock",
27: "escape",
32: "space",
33: "page_up",
34: "page_down",
35: "end",
36: "home",
37: "left",
38: "up",
39: "right",
40: "down",
41: "select",
42: "print",
43: "execute",
44: "printscreen",
45: "insert",
46: "delete",
48: "0",
49: "1",
50: "2",
51: "3",
52: "4",
53: "5",
54: "6",
55: "7",
56: "8",
57: "9",
58: "colon",
59: "semicolon",
60: "less_than",
61: "equals",
62: "greater_than",
63: "question_mark",
64: "at",
65: "a",
66: "b",
67: "c",
68: "d",
69: "e",
70: "f",
71: "g",
72: "h",
73: "i",
74: "j",
75: "k",
76: "l",
77: "m",
78: "n",
79: "o",
80: "p",
81: "q",
82: "r",
83: "s",
84: "t",
85: "u",
86: "v",
87: "w",
88: "x",
89: "y",
90: "z",
93: "context_menu",
96: "numpad0",
97: "numpad1",
98: "numpad2",
99: "numpad3",
100: "numpad4",
101: "numpad5",
102: "numpad6",
103: "numpad7",
104: "numpad8",
105: "numpad9",
106: "multiply",
107: "add",
108: "separator",
109: "subtract",
110: "decimal",
111: "divide",
112: "f1",
113: "f2",
114: "f3",
115: "f4",
116: "f5",
117: "f6",
118: "f7",
119: "f8",
120: "f9",
121: "f10",
122: "f11",
123: "f12",
124: "f13",
125: "f14",
126: "f15",
127: "f16",
128: "f17",
129: "f18",
130: "f19",
131: "f20",
132: "f21",
133: "f22",
134: "f23",
135: "f24",
144: "num_lock",
145: "scroll_lock",
160: "circumflex",
161: "exclamation",
162: "double_quote",
163: "hash",
164: "dollar",
165: "percent",
166: "ampersand",
167: "underscore",
168: "open_paren",
169: "close_paren",
170: "asterisk",
171: "plus",
172: "pipe",
173: "hyphen_minus",
174: "open_curly_bracket",
175: "close_curly_bracket",
176: "tilde",
188: "comma",
190: "period",
191: "slash",
192: "back_quote",
219: "open_bracket",
220: "back_slash",
221: "close_bracket",
222: "quote",
224: "meta",
225: "altgr",
91: "win",
21: "kana",
22: "eisu",
23: "junja",
24: "final",
25: "hanja",
28: "convert",
29: "nonconvert",
30: "accept",
31: "modechange",
95: "sleep"
};
HTML特殊符号、命名实体、十进制编码对照表
HTML特殊符号、命名实体、十进制编码对照表
| 特殊符号 | 命名实体 | 十进制编码 | 特殊符号 | 命名实体 | 十进制编码 |
| Α | Α | Α | Β | Β | Β |
| Γ | Γ | Γ | Δ | Δ | Δ |
| Ε | Ε | Ε | Ζ | Ζ | Ζ |
| Η | Η | Η | Θ | Θ | Θ |
| Ι | Ι | Ι | Κ | Κ | Κ |
| Λ | Λ | Λ | Μ | Μ | Μ |
| Ν | Ν | Ν | Ξ | Ξ | Ξ |
| Ο | Ο | Ο | Π | Π | Π |
| Ρ | Ρ | Ρ | Σ | Σ | Σ |
| Τ | Τ | Τ | Υ | Υ | Υ |
| Φ | Φ | Φ | Χ | Χ | Χ |
| Ψ | Ψ | Ψ | Ω | Ω | Ω |
| α | α | α | β | β | β |
| γ | γ | γ | δ | δ | δ |
| ε | ε | ε | ζ | ζ | ζ |
| η | η | η | θ | θ | θ |
| ι | ι | ι | κ | κ | κ |
| λ | λ | λ | μ | μ | μ |
| ν | ν | ν | ξ | ξ | ξ |
| ο | ο | ο | π | π | π |
| ρ | ρ | ρ | ς | ς | ς |
| σ | σ | σ | τ | τ | τ |
| υ | υ | υ | φ | φ | φ |
| χ | χ | χ | ψ | ψ | ψ |
| ω | ω | ω | ϑ | ϑ | ϑ |
| ϒ | ϒ | ϒ | ϖ | ϖ | ϖ |
| • | • | • | … | … | … |
| ′ | ′ | ′ | ″ | ″ | ″ |
| ‾ | ‾ | ‾ | ⁄ | ⁄ | ⁄ |
| ℘ | ℘ | ℘ | ℑ | ℑ | ℑ |
| ℜ | ℜ | ℜ | ™ | ™ | ™ |
| ℵ | ℵ | ℵ | ← | ← | ← |
| ↑ | ↑ | ↑ | → | → | → |
| ↓ | ↓ | ↓ | ↔ | ↔ | ↔ |
| ↵ | ↵ | ↵ | ⇐ | ⇐ | ⇐ |
| ⇑ | ⇑ | ⇑ | ⇒ | ⇒ | ⇒ |
| ⇓ | ⇓ | ⇓ | ⇔ | ⇔ | ⇔ |
| ∀ | ∀ | ∀ | ∂ | ∂ | ∂ |
| ∃ | ∃ | ∃ | ∅ | ∅ | ∅ |
| ∇ | ∇ | ∇ | ∈ | ∈ | ∈ |
| ∉ | ∉ | ∉ | ∋ | ∋ | ∋ |
| ∏ | ∏ | ∏ | ∑ | ∑ | − |
| − | − | − | ∗ | ∗ | ∗ |
| √ | √ | √ | ∝ | ∝ | ∝ |
| ∞ | ∞ | ∞ | ∠ | ∠ | ∠ |
| ∧ | ∧ | ⊥ | ∨ | ∨ | ⊦ |
| ∩ | ∩ | ∩ | ∪ | ∪ | ∪ |
| ∫ | ∫ | ∫ | ∴ | ∴ | ∴ |
| ∼ | ∼ | ∼ | ≅ | ≅ | ≅ |
| ≈ | ≈ | ≅ | ≠ | ≠ | ≠ |
| ≡ | ≡ | ≡ | ≤ | ≤ | ≤ |
| ≥ | ≥ | ≥ | ⊂ | ⊂ | ⊂ |
| ⊃ | ⊃ | ⊃ | ⊄ | ⊄ | ⊄ |
| ⊆ | ⊆ | ⊆ | ⊇ | ⊇ | ⊇ |
| ⊕ | ⊕ | ⊕ | ⊗ | ⊗ | ⊗ |
| ⊥ | ⊥ | ⊥ | ⋅ | ⋅ | ⋅ |
| ⌈ | ⌈ | ⌈ | ⌉ | ⌉ | ⌉ |
| ⌊ | ⌊ | ⌊ | ⌋ | ⌋ | ⌋ |
| ◊ | ◊ | ◊ | ♠ | ♠ | ♠ |
| ♣ | ♣ | ♣ | ♥ | ♥ | ♥ |
| ♦ | ♦ | ♦ | |   | |
| ¡ | ¡ | ¡ | ¢ | ¢ | ¢ |
| £ | £ | £ | ¤ | ¤ | ¤ |
| ¥ | ¥ | ¥ | ¦ | ¦ | ¦ |
| § | § | § | ¨ | ¨ | ¨ |
| © | © | © | ª | ª | ª |
| « | « | « | ¬ | ¬ | ¬ |
| | ­ | ­ | ® | ® | ® |
| ¯ | ¯ | ¯ | ° | ° | d° |
| ± | ± | ± | ² | ² | ² |
| ³ | ³ | ³ | ´ | ´ | ´ |
| µ | µ | µ |
HTML5 新增标签
语义标签 |
|
| <article> | 定义文章 |
| <aside> | 定义页面内容之外的内容 |
| <dialog> | 定义对话框或窗口 |
| <figcaption> | 定义 figure 标题，类似 <fieldset> 的 <legend> |
| <figure> | 定义媒体内容以及标题 |
| <footer> | 定义网页或区块的页脚，类似 div.footer |
| <header> | 定义网页或区块的页眉，类似 div.header |
| <hgroup> | 定义区块或标题组合 |
| <nav> | 定义导航链接 |
| <section> | 定义区块，区块内部具有关联性 |
| <time> | 定义日期/时间 |
多媒体标签 |
|
| <audio> | 定义声音 |
| <canvas> | 定义图形 |
| <embed> | 定义外部交互内容或插件 |
| <source> | 定义媒体源 |
| <track> | 定义用在媒体播放器中的文本轨道 |
| <video> | 定义视频 |
应用标签 |
|
| <command> | 定义命令按钮，目前不受支持 |
| <details> | 定义元素的细节 |
| <datalist> | 定义下拉列表 |
| <meter> | 定义预定义范围内的度量 |
| <menu> | 定义菜单，在 4.01 中弃用，在 5 中重新定义，目前不受支持 |
| <menuitem> | 定义弹出菜单条目 |
| <progress> | 定义进度 |
| <summary> | 定义 <details> 标题，类似 <fieldset> 的 <legend> |
| <wbr> | 定义可换行的文本 |
其他标签 |
|
| <bdi> | 定义文本的文本方向，使其脱离其周围文本方向 |
| <keygen> | 定义生成密钥 |
| <mark> | 定义有记号的文本 |
| <output> | 定义输出类型 |
| <ruby> | 定义 ruby 注释 |
| <rp> | 定义若浏览器不支持 ruby 元素显示的内容 |
| <rt> | 定义 ruby 注释的解释 |