微信小程序 scroll-view 实现锚点跳转功能

<view class="list">
  <view bindtap=‘jumpTo‘ data-opt="list0">list0</view>
  <view bindtap=‘jumpTo‘ data-opt="list11">list11</view>
  <view bindtap=‘jumpTo‘ data-opt="list29">list29</view>
</view>
<scroll-view scroll-into-view="{{toView}}" scroll-y="true" scroll-with-animation="true">
  <view wx:for="{{list}}" id="{{item}}" class="test">
   {{item}}
  </view>
</scroll-view>

 data: {
  list: ["list0", "list1", "list2"],
  toView: ‘‘
 },
 jumpTo: function (e) {
  // 获取标签元素上自定义的 data-opt 属性的值
  let target = e.currentTarget.dataset.opt;
  this.setData({
   toView: target
  })
 },