代码好像显示不全，这里贴一下：

// 获取手机号
  getPhoneNumber: function (event) {
    var _this = this
    let cloudID = event.detail.cloudID //开放数据ID
    console.log("cloudID = " + cloudID)
    const db = wx.cloud.database()
    if (!cloudID) {
      wx.showModal({
        showCancel: false,
        title: '提示',
        content: '为避免支付纠纷，请授权手机号'
      })
    } else {
      wx.showLoading({
        title: '正在加载',
      })
      //获取手机号
      wx.cloud.callFunction({
        name: 'getphone',
        data: {
          cloudID: cloudID
        }
      }).then(res => {
        wx.hideLoading({
          success: (res) => { },
        })
        var openid = res.result.OPENID
        var phone = res.result.phone
        console.log("phone : " + phone + ", openid : " + openid)
        if (phone) {
          var openidExist = _this.data.openidExist
          const db = wx.cloud.database()
          // 有 user 对象，则 update
          if(openidExist) {
            db.collection('user').where({
              openid : openid
            }).update({
              data: {
                phone: phone
              },
              success: function (res) {
                console.log('user object add phone fieid success')
              },
              fail: function(err) {
                console.error('error : ', err)
              }
            })
          } else { // 没有 user 对象，则 add
            db.collection('user').add({
              data: {
                openid: openid,
                phone: phone
              },
              success: function (res) {
                console.log('user object add success')
              },
              fail: function(err) {
                console.error('error : ', err)
              }
            })
          }
          console.log("绑定手机号成功")
          _this.setData({
            showModal: false,
            openid: openid,
            mobile: phone
          })
          wx.hideLoading({
            success: (res) => { },
          })
        }
      }).catch(error => {
        console.error('出错了', error)
        wx.hideLoading({
          success: (res) => { },
        })
      })
    }
  },