我将json数据渲染到html页面：
<div ng-if="'done'={{task_detail.status}}">
<b>Status :</b>
<p class="label label-success">{{task_detail.status}}</p>
<br>
<br>
<div class="progress progress-striped">
<div class="progress-bar" role="progressbar" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100" style="width:{{task_detail.percentage_finished}}%">
<span class="sr-only">{{task_detail.percentage_finished}}% Complete</span>
</div>
</div>
</div>
这是我渲染的json数据：
{
"id": 1,"title": "Launch an EC Instance","desc": "Needed an EC instance to deploy the ccr code","status": "done","percentage_finished": 100
}
问题：HTML视图不可见，因为控件在ng-if内不移动。
语法是否正确？
