scroll-view回到顶部的使用（scroll-top）

<scroll-view scroll-y class="right-box" :scroll-top="scrollRightTop"  @scrolltolower="onreachBottom"  :refresher-enabled="true" :refresher-triggered="triggered"   :refresher-threshold="45"  refresher-background="#f8f8f8" @refresherrefresh="onRefresh"  @refresherrestore="onRestore">



scrollTop:0.01,


 this.setData({
      scrollTop:this.data.scrollTop==0?1:0,
   })