onReady: function () {
    let that = this
    wx.getSystemInfo({
      complete: (res) => {
        var query = wx.createSelectorQuery()
        query.select('#bottom').boundingClientRect(function(qRes) {
          that.setData({
            userInfoCardHeight:res.windowHeight-qRes.height
          })
          console.log(res.windowHeight-qRes.height)
        }).exec();
      },
    })
    console.log("用户卡片高度"+that.data.userInfoCardHeight)
  },