小程序中頁面 判斷下拉還是上滑

wxml: <view hidden="{{hide}}" class="fixhead" >頭部固定</view> <view class='demo1'>滑動1</view> <view class='demo2'>滑動2</view> wxss: .demo1,.demo2{ height: 300px; margin-top: 100rpx; } .fixhead{ position: f

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