常见的mimi类型 ``` { ".323":"text/h323" ,   ".3gp":"video/3gpp" ,   ".aab":"application/x-authoware-bin" ,   ".aam":"application/x-authoware-map" ,   ".aas":"application/x-authoware-seg" ,   ".acx":"application/internet-property-stream" ,   ".ai":"application/postscript" ,   ".aif":"audio/x-aiff" ,   ".aifc":"audio/x-aiff" ,   ".aiff":"audio/x-aiff" ,   ".als":"audio/X-Alpha5" ,   ".amc":"application/x-mpeg" ,   ".ani":"application/octet-stream" ,   ".apk":"application/vnd.android.package-archive" ,   ".asc":"text/plain" ,   ".asd":"application/astound" ,   ".asf":"video/x-ms-asf" ,   ".asn":"application/astound" ,   ".asp":"application/x-asap" ,   ".asr":"video/x-ms-asf" ,   ".asx":"video/x-ms-asf" ,   ".au":"audio/basic" ,   ".avb":"application/octet-stream" ,   ".avi":"video/x-msvideo" ,   ".awb":"audio/amr-wb" ,   ".axs":"application/olescript" ,   ".bas":"text/plain" ,   ".bcpio":"application/x-bcpio" ,   ".bin ":"application/octet-stream" ,   ".bld":"application/bld" ,   ".bld2":"application/bld2" ,   ".bmp":"image/bmp" ,   ".bpk":"application/octet-stream" ,   ".bz2":"application/x-bzip2" ,   ".c":"text/plain" ,   ".cal":"image/x-cals" ,   ".cat":"application/vnd.ms-pkiseccat" ,   ".ccn":"application/x-cnc" ,   ".cco":"application/x-cocoa" ,   ".cdf":"application/x-cdf" ,   ".cer":"application/x-x509-ca-cert" ,   ".cgi":"magnus-internal/cgi" ,   ".chat":"application/x-chat" ,   ".class":"application/octet-stream" ,   ".clp":"application/x-msclip" ,   ".cmx":"image/x-cmx" ,   ".co":"application/x-cult3d-object" ,   ".cod":"image/cis-cod" ,   ".conf":"text/plain" ,   ".cpio":"application/x-cpio" ,   ".cpp":"text/plain" ,   ".cpt":"application/mac-compactpro" ,   ".crd":"application/x-mscardfile" ,   ".crl":"application/pkix-crl" ,   ".crt":"application/x-x509-ca-cert" ,   ".csh":"application/x-csh" ,   ".csm":"chemical/x-csml" ,   ".csml":"chemical/x-csml" ,   ".css":"text/css" ,   ".cur":"application/octet-stream" ,   ".dcm":"x-lml/x-evm" ,   ".dcr":"application/x-director" ,   ".dcx":"image/x-dcx" ,   ".der":"application/x-x509-ca-cert" ,   ".dhtml":"text/html" ,   ".dir":"application/x-director" ,   ".dll":"application/x-msdownload" ,   ".dmg":"application/octet-stream" ,   ".dms":"application/octet-stream" ,   ".doc":"application/msword" ,   ".docx":"application/vnd.openxmlformats-officedocument.wordprocessingml.document" ,   ".dot":"application/msword" ,   ".dvi":"application/x-dvi" ,   ".dwf":"drawing/x-dwf" ,   ".dwg":"application/x-autocad" ,   ".dxf":"application/x-autocad" ,   ".dxr":"application/x-director" ,   ".ebk":"application/x-expandedbook" ,   ".emb":"chemical/x-embl-dl-nucleotide" ,   ".embl":"chemical/x-embl-dl-nucleotide" ,   ".eps":"application/postscript" ,   ".epub":"application/epub+zip" ,   ".eri":"image/x-eri" ,   ".es":"audio/echospeech" ,   ".esl":"audio/echospeech" ,   ".etc":"application/x-earthtime" ,   ".etx":"text/x-setext" ,   ".evm":"x-lml/x-evm" ,   ".evy":"application/envoy" ,   ".exe":"application/octet-stream" ,   ".fh4":"image/x-freehand" ,   ".fh5":"image/x-freehand" ,   ".fhc":"image/x-freehand" ,   ".fif":"application/fractals" ,   ".flr":"x-world/x-vrml" ,   ".flv":"flv-application/octet-stream" ,   ".fm":"application/x-maker" ,   ".fpx":"image/x-fpx" ,   ".fvi":"video/isivideo" ,   ".gau":"chemical/x-gaussian-input" ,   ".gca":"application/x-gca-compressed" ,   ".gdb":"x-lml/x-gdb" ,   ".gif":"image/gif" ,   ".gps":"application/x-gps" ,   ".gtar":"application/x-gtar" ,   ".gz":"application/x-gzip" ,   ".h":"text/plain" ,   ".hdf":"application/x-hdf" ,   ".hdm":"text/x-hdml" ,   ".hdml":"text/x-hdml" ,   ".hlp":"application/winhlp" ,   ".hqx":"application/mac-binhex40" ,   ".hta":"application/hta" ,   ".htc":"text/x-component" ,   ".htm":"text/html" ,   ".html":"text/html" ,   ".hts":"text/html" ,   ".htt":"text/webviewhtml" ,   ".ice":"x-conference/x-cooltalk" ,   ".ico":"image/x-icon" ,   ".ief":"image/ief" ,   ".ifm":"image/gif" ,   ".ifs":"image/ifs" ,   ".iii":"application/x-iphone" ,   ".imy":"audio/melody" ,   ".ins":"application/x-internet-signup" ,   ".ips":"application/x-ipscript" ,   ".ipx":"application/x-ipix" ,   ".isp":"application/x-internet-signup" ,   ".it":"audio/x-mod" ,   ".itz":"audio/x-mod" ,   ".ivr":"i-world/i-vrml" ,   ".j2k":"image/j2k" ,   ".jad":"text/vnd.sun.j2me.app-descriptor" ,   ".jam":"application/x-jam" ,   ".jar":"application/java-archive" ,   ".java":"text/plain" ,   ".jfif":"image/pipeg" ,   ".jnlp":"application/x-java-jnlp-file" ,   ".jpe":"image/jpeg" ,   ".jpeg":"image/jpeg" ,   ".jpg":"image/jpeg" ,   ".jpz":"image/jpeg" ,   ".js":"application/x-javascript" ,   ".jwc":"application/jwc" ,   ".kjx":"application/x-kjx" ,   ".lak":"x-lml/x-lak" ,   ".latex":"application/x-latex" ,   ".lcc":"application/fastman" ,   ".lcl":"application/x-digitalloca" ,   ".lcr":"application/x-digitalloca" ,   ".lgh":"application/lgh" ,   ".lha":"application/octet-stream" ,   ".lml":"x-lml/x-lml" ,   ".lmlpack":"x-lml/x-lmlpack" ,   ".log":"text/plain" ,   ".lsf":"video/x-la-asf" ,   ".lsx":"video/x-la-asf" ,   ".lzh":"application/octet-stream" ,   ".m13":"application/x-msmediaview" ,   ".m14":"application/x-msmediaview" ,   ".m15":"audio/x-mod" ,   ".m3u":"audio/x-mpegurl" ,   ".m3url":"audio/x-mpegurl" ,   ".m4a":"audio/mp4a-latm" ,   ".m4b":"audio/mp4a-latm" ,   ".m4p":"audio/mp4a-latm" ,   ".m4u":"video/vnd.mpegurl" ,   ".m4v":"video/x-m4v" ,   ".ma1":"audio/ma1" ,   ".ma2":"audio/ma2" ,   ".ma3":"audio/ma3" ,   ".ma5":"audio/ma5" ,   ".man":"application/x-troff-man" ,   ".map":"magnus-internal/imagemap" ,   ".mbd":"application/mbedlet" ,   ".mct":"application/x-mascot" ,   ".mdb":"application/x-msaccess" ,   ".mdz":"audio/x-mod" ,   ".me":"application/x-troff-me" ,   ".mel":"text/x-vmel" ,   ".mht":"message/rfc822" ,   ".mhtml":"message/rfc822" ,   ".mi":"application/x-mif" ,   ".mid":"audio/mid" ,   ".midi":"audio/midi" ,   ".mif":"application/x-mif" ,   ".mil":"image/x-cals" ,   ".mio":"audio/x-mio" ,   ".mmf":"application/x-skt-lbs" ,   ".mng":"video/x-mng" ,   ".mny":"application/x-msmoney" ,   ".moc":"application/x-mocha" ,   ".mocha":"application/x-mocha" ,   ".mod":"audio/x-mod" ,   ".mof":"application/x-yumekara" ,   ".mol":"chemical/x-mdl-molfile" ,   ".mop":"chemical/x-mopac-input" ,   ".mov":"video/quicktime" ,   ".movie":"video/x-sgi-movie" ,   ".mp2":"video/mpeg" ,   ".mp3":"audio/mpeg" ,   ".mp4":"video/mp4" ,   ".mpa":"video/mpeg" ,   ".mpc":"application/vnd.mpohun.certificate" ,   ".mpe":"video/mpeg" ,   ".mpeg":"video/mpeg" ,   ".mpg":"video/mpeg" ,   ".mpg4":"video/mp4" ,   ".mpga":"audio/mpeg" ,   ".mpn":"application/vnd.mophun.application" ,   ".mpp":"application/vnd.ms-project" ,   ".mps":"application/x-mapserver" ,   ".mpv2":"video/mpeg" ,   ".mrl":"text/x-mrml" ,   ".mrm":"application/x-mrm" ,   ".ms":"application/x-troff-ms" ,   ".msg":"application/vnd.ms-outlook" ,   ".mts":"application/metastream" ,   ".mtx":"application/metastream" ,   ".mtz":"application/metastream" ,   ".mvb":"application/x-msmediaview" ,   ".mzv":"application/metastream" ,   ".nar":"application/zip" ,   ".nbmp":"image/nbmp" ,   ".nc":"application/x-netcdf" ,   ".ndb":"x-lml/x-ndb" ,   ".ndwn":"application/ndwn" ,   ".nif":"application/x-nif" ,   ".nmz":"application/x-scream" ,   ".nokia-op-logo":"image/vnd.nok-oplogo-color" ,   ".npx":"application/x-netfpx" ,   ".nsnd":"audio/nsnd" ,   ".nva":"application/x-neva1" ,   ".nws":"message/rfc822" ,   ".oda":"application/oda" ,   ".ogg":"audio/ogg" ,   ".oom":"application/x-AtlasMate-Plugin" ,   ".p10":"application/pkcs10" ,   ".p12":"application/x-pkcs12" ,   ".p7b":"application/x-pkcs7-certificates" ,   ".p7c":"application/x-pkcs7-mime" ,   ".p7m":"application/x-pkcs7-mime" ,   ".p7r":"application/x-pkcs7-certreqresp" ,   ".p7s":"application/x-pkcs7-signature" ,   ".pac":"audio/x-pac" ,   ".pae":"audio/x-epac" ,   ".pan":"application/x-pan" ,   ".pbm":"image/x-portable-bitmap" ,   ".pcx":"image/x-pcx" ,   ".pda":"image/x-pda" ,   ".pdb":"chemical/x-pdb" ,   ".pdf":"application/pdf" ,   ".pfr":"application/font-tdpfr" ,   ".pfx":"application/x-pkcs12" ,   ".pgm":"image/x-portable-graymap" ,   ".pict":"image/x-pict" ,   ".pko":"application/ynd.ms-pkipko" ,   ".pm":"application/x-perl" ,   ".pma":"application/x-perfmon" ,   ".pmc":"application/x-perfmon" ,   ".pmd":"application/x-pmd" ,   ".pml":"application/x-perfmon" ,   ".pmr":"application/x-perfmon" ,   ".pmw":"application/x-perfmon" ,   ".png":"image/png" ,   ".pnm":"image/x-portable-anymap" ,   ".pnz":"image/png" ,   ".pot,":"application/vnd.ms-powerpoint" ,   ".ppm":"image/x-portable-pixmap" ,   ".pps":"application/vnd.ms-powerpoint" ,   ".ppt":"application/vnd.ms-powerpoint" ,   ".pptx":"application/vnd.openxmlformats-officedocument.presentationml.presentation" ,   ".pqf":"application/x-cprplayer" ,   ".pqi":"application/cprplayer" ,   ".prc":"application/x-prc" ,   ".prf":"application/pics-rules" ,   ".prop":"text/plain" ,   ".proxy":"application/x-ns-proxy-autoconfig" ,   ".ps":"application/postscript" ,   ".ptlk":"application/listenup" ,   ".pub":"application/x-mspublisher" ,   ".pvx":"video/x-pv-pvx" ,   ".qcp":"audio/vnd.qcelp" ,   ".qt":"video/quicktime" ,   ".qti":"image/x-quicktime" ,   ".qtif":"image/x-quicktime" ,   ".r3t":"text/vnd.rn-realtext3d" ,   ".ra":"audio/x-pn-realaudio" ,   ".ram":"audio/x-pn-realaudio" ,   ".rar":"application/octet-stream" ,   ".ras":"image/x-cmu-raster" ,   ".rc":"text/plain" ,   ".rdf":"application/rdf+xml" ,   ".rf":"image/vnd.rn-realflash" ,   ".rgb":"image/x-rgb" ,   ".rlf":"application/x-richlink" ,   ".rm":"audio/x-pn-realaudio" ,   ".rmf":"audio/x-rmf" ,   ".rmi":"audio/mid" ,   ".rmm":"audio/x-pn-realaudio" ,   ".rmvb":"audio/x-pn-realaudio" ,   ".rnx":"application/vnd.rn-realplayer" ,   ".roff":"application/x-troff" ,   ".rp":"image/vnd.rn-realpix" ,   ".rpm":"audio/x-pn-realaudio-plugin" ,   ".rt":"text/vnd.rn-realtext" ,   ".rte":"x-lml/x-gps" ,   ".rtf":"application/rtf" ,   ".rtg":"application/metastream" ,   ".rtx":"text/richtext" ,   ".rv":"video/vnd.rn-realvideo" ,   ".rwc":"application/x-rogerwilco" ,   ".s3m":"audio/x-mod" ,   ".s3z":"audio/x-mod" ,   ".sca":"application/x-supercard" ,   ".scd":"application/x-msschedule" ,   ".sct":"text/scriptlet" ,   ".sdf":"application/e-score" ,   ".sea":"application/x-stuffit" ,   ".setpay":"application/set-payment-initiation" ,   ".setreg":"application/set-registration-initiation" ,   ".sgm":"text/x-sgml" ,   ".sgml":"text/x-sgml" ,   ".sh":"application/x-sh" ,   ".shar":"application/x-shar" ,   ".shtml":"magnus-internal/parsed-html" ,   ".shw":"application/presentations" ,   ".si6":"image/si6" ,   ".si7":"image/vnd.stiwap.sis" ,   ".si9":"image/vnd.lgtwap.sis" ,   ".sis":"application/vnd.symbian.install" ,   ".sit":"application/x-stuffit" ,   ".skd":"application/x-Koan" ,   ".skm":"application/x-Koan" ,   ".skp":"application/x-Koan" ,   ".skt":"application/x-Koan" ,   ".slc":"application/x-salsa" ,   ".smd":"audio/x-smd" ,   ".smi":"application/smil" ,   ".smil":"application/smil" ,   ".smp":"application/studiom" ,   ".smz":"audio/x-smd" ,   ".snd":"audio/basic" ,   ".spc":"application/x-pkcs7-certificates" ,   ".spl":"application/futuresplash" ,   ".spr":"application/x-sprite" ,   ".sprite":"application/x-sprite" ,   ".sdp":"application/sdp" ,   ".spt":"application/x-spt" ,   ".src":"application/x-wais-source" ,   ".sst":"application/vnd.ms-pkicertstore" ,   ".stk":"application/hyperstudio" ,   ".stl":"application/vnd.ms-pkistl" ,   ".stm":"text/html" ,   ".svg":"image/svg+xml" ,   ".sv4cpio":"application/x-sv4cpio" ,   ".sv4crc":"application/x-sv4crc" ,   ".svf":"image/vnd" ,   ".svg":"image/svg+xml" ,   ".svh":"image/svh" ,   ".svr":"x-world/x-svr" ,   ".swf":"application/x-shockwave-flash" ,   ".swfl":"application/x-shockwave-flash" ,   ".t":"application/x-troff" ,   ".tad":"application/octet-stream" ,   ".talk":"text/x-speech" ,   ".tar":"application/x-tar" ,   ".taz":"application/x-tar" ,   ".tbp":"application/x-timbuktu" ,   ".tbt":"application/x-timbuktu" ,   ".tcl":"application/x-tcl" ,   ".tex":"application/x-tex" ,   ".texi":"application/x-texinfo" ,   ".texinfo":"application/x-texinfo" ,   ".tgz":"application/x-compressed" ,   ".thm":"application/vnd.eri.thm" ,   ".tif":"image/tiff" ,   ".tiff":"image/tiff" ,   ".tki":"application/x-tkined" ,   ".tkined":"application/x-tkined" ,   ".toc":"application/toc" ,   ".toy":"image/toy" ,   ".tr":"application/x-troff" ,   ".trk":"x-lml/x-gps" ,   ".trm":"application/x-msterminal" ,   ".tsi":"audio/tsplayer" ,   ".tsp":"application/dsptype" ,   ".tsv":"text/tab-separated-values" ,   ".ttf":"application/octet-stream" ,   ".ttz":"application/t-time" ,   ".txt":"text/plain" ,   ".uls":"text/iuls" ,   ".ult":"audio/x-mod" ,   ".ustar":"application/x-ustar" ,   ".uu":"application/x-uuencode" ,   ".uue":"application/x-uuencode" ,   ".vcd":"application/x-cdlink" ,   ".vcf":"text/x-vcard" ,   ".vdo":"video/vdo" ,   ".vib":"audio/vib" ,   ".viv":"video/vivo" ,   ".vivo":"video/vivo" ,   ".vmd":"application/vocaltec-media-desc" ,   ".vmf":"application/vocaltec-media-file" ,   ".vmi":"application/x-dreamcast-vms-info" ,   ".vms":"application/x-dreamcast-vms" ,   ".vox":"audio/voxware" ,   ".vqe":"audio/x-twinvq-plugin" ,   ".vqf":"audio/x-twinvq" ,   ".vql":"audio/x-twinvq" ,   ".vre":"x-world/x-vream" ,   ".vrml":"x-world/x-vrml" ,   ".vrt":"x-world/x-vrt" ,   ".vrw":"x-world/x-vream" ,   ".vts":"workbook/formulaone" ,   ".wav":"audio/x-wav" ,   ".wax":"audio/x-ms-wax" ,   ".wbmp":"image/vnd.wap.wbmp" ,   ".wcm":"application/vnd.ms-works" ,   ".wdb":"application/vnd.ms-works" ,   ".web":"application/vnd.xara" ,   ".wi":"image/wavelet" ,   ".wis":"application/x-InstallShield" ,   ".wks":"application/vnd.ms-works" ,   ".wm":"video/x-ms-wm" ,   ".wma":"audio/x-ms-wma" ,   ".wmd":"application/x-ms-wmd" ,   ".wmf":"application/x-msmetafile" ,   ".wml":"text/vnd.wap.wml" ,   ".wmlc":"application/vnd.wap.wmlc" ,   ".wmls":"text/vnd.wap.wmlscript" ,   ".wmlsc":"application/vnd.wap.wmlscriptc" ,   ".wmlscript":"text/vnd.wap.wmlscript" ,   ".wmv":"audio/x-ms-wmv" ,   ".wmx":"video/x-ms-wmx" ,   ".wmz":"application/x-ms-wmz" ,   ".wpng":"image/x-up-wpng" ,   ".wps":"application/vnd.ms-works" ,   ".wpt":"x-lml/x-gps" ,   ".wri":"application/x-mswrite" ,   ".wrl":"x-world/x-vrml" ,   ".wrz":"x-world/x-vrml" ,   ".ws":"text/vnd.wap.wmlscript" ,   ".wsc":"application/vnd.wap.wmlscriptc" ,   ".wv":"video/wavelet" ,   ".wvx":"video/x-ms-wvx" ,   ".wxl":"application/x-wxl" ,   ".x-gzip":"application/x-gzip" ,   ".xaf":"x-world/x-vrml" ,   ".xar":"application/vnd.xara" ,   ".xbm":"image/x-xbitmap" ,   ".xdm":"application/x-xdma" ,   ".xdma":"application/x-xdma" ,   ".xdw":"application/vnd.fujixerox.docuworks" ,   ".xht":"application/xhtml+xml" ,   ".xhtm":"application/xhtml+xml" ,   ".xhtml":"application/xhtml+xml" ,   ".xla":"application/vnd.ms-excel" ,   ".xlc":"application/vnd.ms-excel" ,   ".xll":"application/x-excel" ,   ".xlm":"application/vnd.ms-excel" ,   ".xls":"application/vnd.ms-excel" ,   ".xlsx":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" ,   ".xlt":"application/vnd.ms-excel" ,   ".xlw":"application/vnd.ms-excel" ,   ".xm":"audio/x-mod" ,   ".xml":"text/plain",   ".xml":"application/xml",   ".xmz":"audio/x-mod" ,   ".xof":"x-world/x-vrml" ,   ".xpi":"application/x-xpinstall" ,   ".xpm":"image/x-xpixmap" ,   ".xsit":"text/xml" ,   ".xsl":"text/xml" ,   ".xul":"text/xul" ,   ".xwd":"image/x-xwindowdump" ,   ".xyz":"chemical/x-pdb" ,   ".yz1":"application/x-yz1" ,   ".z":"application/x-compress" ,   ".zac":"application/x-zaurus-zac" ,   ".zip":"application/zip" ,   ".json":"application/json" } ```