element-upload上传组件限制

1.项目中用到了el-上传组件

在实现之后，备忘下，以防以后忘失

 <el-popover placement="bottom-start" width="450" trigger="click">
            <div style="height:300px;">
              <el-upload
                class="u_excel"
                :action="uploadbzip"
                :headers="Myhead"
                :on-preview="handlePreview"
                :on-remove="handleRemove"
                :before-remove="beforeRemove"
                :multiple="false"
                :limit="1"
                :on-exceed="handleExceed"
                :file-list="fileList"
                 accept = ".zip,aplication/zip"
              >
                <el-button type="primary">上传</el-button>
                <div slot="tip" class="el-upload__tip">只能上传zip格式文件，且不超过500kb</div>
              </el-upload>
            </div> 
            <el-button type="primary" slot="reference">上传</el-button>
          </el-popover>

限制为：多个限制以逗号分开
核心为：

 accept = ".zip,aplication/zip"

其它的限制条件

*.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
*.pdf   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

可以参考 官网解释：
https://element.eleme.cn/#/zh-CN/component/upload

测试后，我们可以看到，当我们配置了选项之后，当打开上传例如
zip 格式的， 那么，打开的时候全部都是zip 格式的其它格式的连显示都不显示了
完结