<view class="active-header {{titel?'titel-list':''}}"> <view class="active-header-block {{ind=='0'? 'active' : ''}}" data-index="0" data-val="1" bindtap="changeBanner">上新</view> <view class="active-header-block {{ind=='1'? 'active' : ''}}" data-index="1" data-val="2" bindtap="changeBanner">热销</view> <view class='active-header-block {{daindex2 =="0"||daindex2 =="1" ?"active":""}}' data-index="2" data-index="{{daindex2}}" bindtap="choosesort2"> 价格 <image src="{{imageurl2}}" wx:if="{{noticeContent}}"></image> </view> </view> Page({ data: { titel: false, }， onPageScroll(res) {     var that = this     if (res.scrollTop >that.data.scrollTop) {     that.setData({     titel: true     })     } else {     that.setData({     titel: false     })     } } onPageScroll做滚动吸顶在真机上反应迟钝，一点都不流畅，体验效果不好