button class=delete-btn data-index=index bindtap=deleteImage type=primary size=mini删除buttonbutton上加个图标并修改button的大小背景颜色

<button class="delete-btn" data-index="{{index}}" bindtap="deleteImage" type="primary" size="mini" style="background-color: #F00">
  <image src="delete-icon.png" class="delete-icon"></image>
  删除
</button>
<style>
  .delete-icon {
    width: 12px;
    height: 12px;
    margin-right: 6px;
  }
</style>