greenPro/unpackage/dist/dev/mp-weixin/pages/API/intersection-observer/intersection-observer.wxml

<view><page-head wx:if="{{a}}" u-i="2515de52-0" bind:__l="__l" u-p="{{a}}"></page-head><view class="uni-padding-wrap uni-common-mt"><view class="uni-title uni-common-mt">{{b}}</view><scroll-view class="scroll-view" scroll-y><view class="scroll-area"><text class="notice">向下滚动让小球出现</text><view class="ball"></view></view></scroll-view></view></view>