//这里的高度是我自定义减去导航栏高度，只要使用了{{titleHeight}},刷新就拉不下来，该怎么解决？求大佬告知
<scroll-view
  scroll-y style="width: 100%; height: calc(100% - 88rpx - {{titleHeight}}px)"
  refresher-enabled="{{true}}"
  refresher-threshold="{{100}}"
  refresher-default-style="white"
  refresher-background="lightgreen"
  refresher-triggered="{{triggered}}"
  bindrefresherpulling="onPulling"
  bindrefresherrefresh="onRefresh"
  bindrefresherrestore="onRestore"
  bindrefresherabort="onAbort"
>
  <view wx:for="{{arr}}" style="display: flex; height: 100px;">
    <image src="https://images.unsplash.com/photo-1565699894576-1710004524ba?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1832&q=80"></image>
    <image src="https://images.unsplash.com/photo-1566402441483-c959946717ed?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1600&q=80"></image>
    <image src="https://images.unsplash.com/photo-1566378955258-7633cb5c823e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=634&q=80"></image>
    <image src="https://images.unsplash.com/photo-1566404394190-cda8c6209208?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=630&q=80"></image>
    <image src="https://images.unsplash.com/photo-1566490595448-be523b4d2914?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=958&q=80"></image>
    </view>
</scroll-view>