(IE9 及以下不支持下面这些功能,其它浏览器最新版本均已支持。)
1、允许上传文件数量
允许选择多个文件:<input type="file" multiple>
只允许上传一个文件:<input type="file" single>
2、上传指定的文件格式
<input type="file" accept="image/gif,image/png" />
这里的上传格式仅指打开上传弹窗选择文件时默认的文件格式,可手动修改成其它文件格式。
如果不限制上传图片的格式可写成:accept="image/*"
其它格式参考如下:
*.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 | image/vnd.dwg | AutoCAD Drawing Database |
*.dxf | image/vnd.dxf | AutoCAD Drawing Interchange Format |
*.gif | image/gif | Graphic Interchange Format |
*.htm | text/html | HyperText Markup Language |
*.html | text/html | HyperText Markup Language |
*.jp2 | image/jp2 | JPEG-2000 |
*.jpe | image/jpeg | JPEG |
*.jpeg | image/jpeg | JPEG |
*.jpg | image/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 |
application/pdf | Portable Document Format | |
*.png | image/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 | image/vnd.svf | Simple Vector Format |
*.tif | image/tiff | Tagged Image Format File |
*.tiff | image/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 |
这里要慎重说明的是:网上好多教程都说 excel 过滤要用 “accept="application/msexcel"” ,其实是大错特错!测试了,不行! 我也是在做 phpExcel 导出 excel 文件是,看到了,有一行代码:
header(‘Content-Type: application/vnd.ms-excel‘); //excel 2003
header(‘Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet‘); //excel 2007
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