<slider>
indicator class="indicator"></indicator> 小圆点
</slider>
.frame {
width: 700px;
height: 700px;
position: relative; 设置relative
}
.indicator {
width: 700px;
height: 700px;
item-color: #ffffff;
item-selected-color: blue;
item-size: 20px;
position: absolute; 必须设置absolute，否则手机端显示不了
top: 200px;
left: 0px;
}
