https://developers.weixin.qq.com/miniprogram/dev/extended/component-plus/recycle-view.html

长列表宽高设置无效

this.ctx = createRecycleContext({
      id: 'recycleId',
      dataKey: 'recycleList',
      page: this,
      itemSize: {
        width: wx.getSystemInfoSync().windowWidth,
        height: 78
      }
    })