input的type=file上传文件时限制各种文件格式accept属性值整理

<form>
  <input type="file" name="pic" id="pic"    accept="image/gif, image/jpeg, application/vnd.ms-excel" />
</form>

可选项

.xml  text/xml， application/xml   Extensible Markup Language
.js  text/javascript， application/javascript JavaScript

.json  application/json    JavaScript Object Notation
.pdf   application/pdf Portable Document Format
.rtf   application/rtf， text/rtf   Rich Text Format
.ogg   application/ogg， audio/ogg  Ogg Vorbis

.doc   application/msword  MS Word Document
.docx  application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dot   application/msword  MS Word Template
.dotx  application/vnd.openxmlformats-officedocument.wordprocessingml.template
.ppt   application/vnd.ms-powerpoint   MS PowerPoint Presentation
.pptx  application/vnd.openxmlformats-officedocument.presentationml.presentation
.pot   application/vnd.ms-powerpoint   MS PowerPoint Template
.potx  application/vnd.openxmlformats-officedocument.presentationml.template
.pps   application/vnd.ms-powerpoint   MS PowerPoint Slideshow
.ppsx  application/vnd.openxmlformats-officedocument.presentationml.slideshow
.xlc   application/vnd.ms-excel    MS Excel Chart
.xlm   application/vnd.ms-excel    MS Excel Macro
.xls   application/vnd.ms-excel    MS Excel Spreadsheet
.xlsx  application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xlsm  application/vnd.ms-excel.addin.macroEnabled.12
.xlsb  application/vnd.ms-excel.sheet.binary.macroEnabled.12
.xlt   application/vnd.ms-excel    MS Excel Template
.xltx  application/vnd.openxmlformats-officedocument.spreadsheetml.template
.xlw   application/vnd.ms-excel    MS Excel Workspace
.wdb   application/vnd.ms-works    MS Works Database
.wps   application/vnd.ms-works    Works Text Document
.mpp   application/vnd.ms-project  MS Project Project
.sldx  application/vnd.openxmlformats-officedocument.presentationml.slide
.asf   application/vnd.ms-asf  Advanced Streaming Format
.dtd   application/xml-dtd Document Type Definition
.xhtml application/xhtml+xml   Extensible HyperText Markup Language
.zip   aplication/zip  Compressed Archive