Html input file控件使用accept过滤 限制的文件类型

Html input file控件使用accept过滤文件

<input type="file" accept=".txt" >

弹出的文件选择框只显示txt文件

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input type=file accept中可以限制的文件类型

accept这个属性，只在FF，ie10和chrome中有效。那么accept能限制哪些文件呢？见下表。 MIME 描述

*.3gppaudio/3gpp， video/3gpp3GPP Audio/Video*.ac3audio/ac3AC3 Audio*.asfallpication/vnd.ms-asfAdvanced Streaming Format*.auaudio/basicAU Audio*.csstext/cssCascading Style Sheets*.csvtext/csvComma Separated Values*.docapplication/mswordMS Word Document*.dotapplication/mswordMS Word Template*.dtdapplication/xml-dtdDocument Type Definition*.dwgimage/vnd.dwgAutoCAD Drawing Database*.dxfimage/vnd.dxfAutoCAD Drawing Interchange Format*.gifimage/gifGraphic Interchange Format*.htmtext/htmlHyperText Markup Language*.htmltext/htmlHyperText Markup Language*.jp2image/jp2JPEG-2000*.jpeimage/jpegJPEG*.jpegimage/jpegJPEG*.jpgimage/jpegJPEG*.jstext/javascript， application/javascriptJavaScript*.jsonapplication/jsonJavaScript Object Notation*.mp2audio/mpeg， video/mpegMPEG Audio/Video Stream， Layer II*.mp3audio/mpegMPEG Audio Stream， Layer III*.mp4audio/mp4， video/mp4MPEG-4 Audio/Video*.mpegvideo/mpegMPEG Video Stream， Layer II*.mpgvideo/mpegMPEG Video Stream， Layer II*.mppapplication/vnd.ms-projectMS Project Project*.oggapplication/ogg， audio/oggOgg Vorbis*.pdfapplication/pdfPortable Document Format*.pngimage/pngPortable Network Graphics*.potapplication/vnd.ms-powerpointMS PowerPoint Template*.ppsapplication/vnd.ms-powerpointMS PowerPoint Slideshow*.pptapplication/vnd.ms-powerpointMS PowerPoint Presentation*.rtfapplication/rtf， text/rtfRich Text Format*.svfimage/vnd.svfSimple Vector Format*.tifimage/tiffTagged Image Format File*.tiffimage/tiffTagged Image Format File*.txttext/plainPlain Text*.wdbapplication/vnd.ms-worksMS Works Database*.wpsapplication/vnd.ms-worksWorks Text Document*.xhtmlapplication/xhtml+xmlExtensible HyperText Markup Language*.xlcapplication/vnd.ms-excelMS Excel Chart*.xlmapplication/vnd.ms-excelMS Excel Macro*.xlsapplication/vnd.ms-excelMS Excel Spreadsheet*.xltapplication/vnd.ms-excelMS Excel Template*.xlwapplication/vnd.ms-excelMS Excel Workspace*.xmltext/xml， application/xmlExtensible Markup Language*.zipaplication/zipCompressed Archive