怎样把值传给wxs？dataset传递失败

<wxs module="slideMove" src="./slideMove.wxs"></wxs>

<view class="liveRoomContainer" bindtap="bigTap" data-width="{{windowWidth}}" bindtouchmove="{{slideMove.touchmove}}" bindtouchend="{{slideMove.touchend}}" bindtouchstart="{{slideMove.touchstart}}">里面嵌套了一些cover-view标签</view>

// 屏幕宽度    windowWidth: wx.getSystemInfoSync().windowWidth   

wxs中，e.target.dataset是{}, width值取不到， 怎么传过去啊？