- 当前 Bug 的表现（可附上截图）[图片] - 预期表现 [图片] - 复现路径  没有上线不能复现 - 提供一个最简复现 Demo main.wxml      <view class="main-wrapper" wx:if="{{!showModalStatus && subjectList.length}}"> <view class="subject-wrapper clearfix"> <view class="more-view" bindtap="showModal"> <image src="../images/more.png"></image> </view> <scroll-view scroll-x="true" class="scroll-view" scroll-left="{{navScrollLeft}}" scroll-with-animation="{{true}}"> <block wx:for="{{subjectList}}" wx:for-item="subject" wx:key="subject.SUBJECT_ID"> <view class="scroll-view-item {{subject.cls}} {{subject.active?'active':''}}"  bindtap='toGetSubNews' data-value="{{subject.SUBJECT_ID}}" data-index="{{index}}"> <text>{{subject.SUB_SHORT_NAME}}</text> </view> </block> </scroll-view> </view> </view> main.wxss .main-wrapper { position:fixed; top:0; width:100%; z-index:2; border-bottom: 5px solid #F1F1F1; } .subject-wrapper { background: #fff; padding: 0 13px; } .subject-wrapper .more-view { float: right; } .subject-wrapper .more-view image { width: 14px; height: 13px; display: inline-block; margin-top:11px; } .scroll-view { white-space: nowrap; width:94%; padding:5px 0px 5px 0px; font-size:14px; } .scroll-view-item { height: 30px; line-height:24px; display: inline-block; position: relative; margin-right: 15px; } .scroll-view-item:last-child{ margin-right: 0; } .scroll-view-item.tips::before { content: ''; display: inline-block; background: #F7614E; width: 5px; height: 5px; border-radius: 100%; position: absolute; right: -5px; top: 0px; z-index: 1; } .scroll-view-item.active::after { content: ''; display: inline-block; background: #F7614E; border-radius: 1px; height: 3px; width: 28px; position: absolute; top: 80%; left: 50%; margin-left: -14px; } main.js onReachBottom: function () { console.log('onReachBottom'); // 如果是选择学科页面不请求数据 if (this.data.showModalStatus) { return; } let page = this.data.page + 1; this.setData({ page: page, loadMore: true }); console.log(this.data.page); if (!this.data.subId) { this.getTodayNews(); } else { this.getSubNews(this.data.subId); } } 但是没有触发该操作 该功能在iOS上有问题。下拉触底后头部学科内容全部消失，松开后又显示出来，但是头部学科内容如果小于10条，不会出现该情况， 求解。