angularjs 图片上传

<input type="file" alt="选择图片..." ngf-select="uploadFiles($files,$invalidFiles)" ng-model="img.file" name="img.file" ngf-pattern="'image/*'"

ngf-accept="'image/*'" ngf-max-size="20MB" ngf-min-height="100" ngf-multiple="true"

ngf-resize="{width: 100, height: 100}">

<div class="c-panel-body" style="width: 753px; height: 130px;">

<ul id="evaluationImg">

</ul>

</div>

ngf-multiple="true" --是否可以上传多张