swiper滚动，this.setdata 动态刷新索引 current 无效，skyline模式下？

<swiper class="recommend" current="{{current}}" indicator-dots="{{indicatorDots}}" indicator-type="worm" scroll-with-animation="{{scrollWithAnimation}}" autoplay="{{autoplay}}" circular="{{circular}}" vertical="{{vertical}}" interval="{{interval}}" duration="{{duration}}" cache-extent="3" previous-margin="{{previousMargin}}px" next-margin="{{nextMargin}}px" display-multiple-items="{{multiItems}}" bind:change="onChange" bind:transition="onTransition" bind:animationfinish="onAnimationfinish" worklet:onscrollstart="onscrollstart" worklet:onscrollend="onscrollend">
  <block wx:for="{{dateList}}" wx:key="*this">
    <swiper-item>
      <view>{{item}}</view>
    </swiper-item>
  </block>
</swiper>

data: {
current:0
}

onLoad(options) {
    this.setData({
      current: 8
    })
}

必现错误