FileUpload系列:(4)HTML5的input:f
网页上添加一个input file HTML控件:
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默认情况下,所有文件类型都会显示出来,如果想限制它只显示特定的文件类型呢,比如“word“,”excel“,”pdf“文件
解决办法是可以给它添加一个accept属性,比如:
还有另外一种形式:
accept属性列表
多个类型用逗号分隔开,因为accept是html5的新特性,所以火狐和IE的支持就显得单薄了
But,这只是最简单的掩人耳目的做法,还是能选择其它文件类型。
所以,如果要做到真正意义上限制类型做法(其实这种算不上限制,只是把你要的文件类型默认显示出来而已,并不是说不能选择其它的),还是要通过js或者后台来控制。
那么accept能限制哪些文件呢?见下表。
*.3gpp audio/3gpp, video/3gpp 3GPP Audio/Video *.ac3 audio/ac3 AC3 Audio *.asf allpication/vnd.ms-asf Advanced Streaming Format *.au audio/basic AU Audio *.css text/css Cascading Style Sheets *.csv text/csv Comma Separated Values *.doc application/msword MS Word Document *.dot application/msword MS Word Template *.dtd application/xml-dtd Document Type Definition *.dwg p_w_picpath/vnd.dwg AutoCAD Drawing Database *.dxf p_w_picpath/vnd.dxf AutoCAD Drawing Interchange Format *.gif p_w_picpath/gif Graphic Interchange Format *.htm text/html HyperText Markup Language *.html text/html HyperText Markup Language *.jp2 p_w_picpath/jp2 JPEG-2000 *.jpe p_w_picpath/jpeg JPEG *.jpeg p_w_picpath/jpeg JPEG *.jpg p_w_picpath/jpeg JPEG *.js text/javascript, application/javascript JavaScript *.json application/json JavaScript Object Notation *.mp2 audio/mpeg, video/mpeg MPEG Audio/Video Stream, Layer II *.mp3 audio/mpeg MPEG Audio Stream, Layer III *.mp4 audio/mp4, video/mp4 MPEG-4 Audio/Video *.mpeg video/mpeg MPEG Video Stream, Layer II *.mpg video/mpeg MPEG Video Stream, Layer II *.mpp application/vnd.ms-project MS Project Project *.ogg application/ogg, audio/ogg Ogg Vorbis *.pdf application/pdf Portable Document Format *.png p_w_picpath/png Portable Network Graphics *.pot application/vnd.ms-powerpoint MS PowerPoint Template *.pps application/vnd.ms-powerpoint MS PowerPoint Slideshow *.ppt application/vnd.ms-powerpoint MS PowerPoint Presentation *.rtf application/rtf, text/rtf Rich Text Format *.svf p_w_picpath/vnd.svf Simple Vector Format *.tif p_w_picpath/tiff Tagged Image Format File *.tiff p_w_picpath/tiff Tagged Image Format File *.txt text/plain Plain Text *.wdb application/vnd.ms-works MS Works Database *.wps application/vnd.ms-works Works Text Document *.xhtml application/xhtml+xml Extensible HyperText Markup Language *.xlc application/vnd.ms-excel MS Excel Chart *.xlm application/vnd.ms-excel MS Excel Macro *.xls application/vnd.ms-excel MS Excel Spreadsheet *.xlt application/vnd.ms-excel MS Excel Template *.xlw application/vnd.ms-excel MS Excel Workspace *.xml text/xml, application/xml Extensible Markup Language *.zip aplication/zip Compressed Archive
参考文章:
http://www.haorooms.com/post/input_file_leixing
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