<div>
  <div class="announcementItem" *ngFor="let announcementItem of announcementLists">
    <div class="announcement_title"><span class="announcement_type">【{{announcementItem.announcement_type}}】</span><span [innerHtml]="announcementItem.title"></span></div>
    <div [innerHtml]="announcementItem.content" class="announcement_content"></div>
    <div class="announcement_at">{{announcementItem.announcement_at}}</div>
  </div>
</div>
