angularjs 图片上传 回显

function imgFile(file) {
var reader = new FileReader();
$scope.guid = (new Date()).valueOf();   //通过时间戳创建一个随机数，作为键名使用
reader.onload = function (ev) {
$scope.$apply(function () {
$scope.thumb.push(ev.target.result);
});
};
reader.readAsDataURL(file);  //FileReader的方法，把图片转成base64
}
$scope.img_upload = function (files) {
for(var  img=0;img<files.length ;img++){
$scope.imgFilesData.push(files[img]);
imgFile(files[img]);
}
};

页面

<!--照片-->
<div>
<section>
<div>
<div ng-repeat="item in thumb">
<!-- 采用angular循环的方式，对存入thumb的图片进行展示 -->
<label>
<img ng-src="{{item}}" class="float-left padding-left-8" width="70px" height="70px"/>
</label>
</div>
<div  >
<div  class="float-left" >
<input  type="file" id="one-input" accept="image/*"  multiple="multiple" file-model="images" style=";z-index: 99999 ;margin-left: -70px;height: 70px;width: 70px;opacity: 0 " onchange="angular.element(this).scope().img_upload(this.files)"/>
<div class="width-70 height-70 float-left margin-left-5 line-height-70 background-e5 text-center" >
<i class="ion-image font-size-20 color-888"></i>
</div>
</div>
</div>
</div>
</section>
</div>