<script src="/UploadFiles/2021-04-02/angular.min.js">

2.只选择，有submit上传


Upload on form submit or button click
 <form ng-app="fileUpload" ng-controller="MyCtrl" name="form">
 Single Image with validations
 <div class="button" ngf-select ng-model="file" name="file" ngf-pattern="'image/*'"
 ngf-accept="'image/*'" ngf-max-size="20MB" ngf-min-height="100" 
 ngf-resize="{width: 100, height: 100}">Select</div>
 Multiple files
 <div class="button" ngf-select ng-model="files" ngf-multiple="true">Select</div>
 Drop files: <div ngf-drop ng-model="files" class="drop-box">Drop</div>
 <button type="submit" ng-click="submit()">submit</button>
 </form>


3.选择之后，立马上传


Upload right away after file selection:
 <div class="button" ngf-select="upload($file)">Upload on file select</div>
 <div class="button" ngf-select="uploadFiles($files)" multiple="multiple">Upload on file select</div>
 Drop File:
 <div ngf-drop="uploadFiles($files)" class="drop-box"
 ngf-drag-over-class="'dragover'" ngf-multiple="true" 
 ngf-pattern="'image/*,application/pdf'">Drop Images or PDFs files here</div>
<div ngf-no-file-drop>File Drag/Drop is not supported for this browser</div>


4.upload模块还能显示图片预览


Image thumbnail: <img ngf-thumbnail="file || '/thumb.jpg'">
 Audio preview: <audio controls ngf-src="/UploadFiles/2021-04-02/file">

这个里面注意了：这里面的file不是图片路径，而是，ngf-select ng-model="file" name="file"操作的时候，或者ngf-select="upload($file)传给调用函数的那个file对象
总结
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