input type=file accept中限制檔案型別pdf、doc、docx、 jpg、 png、xls 、xlsx等格式
accept="application/msexcel,application/msword,application/pdf,image/jpeg,image/png,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.openxmlformats-officedocument.wordprocessingml.document"
<input type="file" accept="image/*" />
accept表示可以上傳檔案型別，image表示圖片，*表示所有支援的格式。
accept可以指定如下資訊：
|
*.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 |