读写权限也是所有人可以读写

//云函数
if (event.action === 'addAddress') {
        return await cloud.database().collection("users").doc(event.openid).update({
            data: {
                fullAddress: event.fullAddress
            }
        })
        .then(res => {
            console.log(event);
              console.log("更新成功", res)
            return res
        })
        .catch(res => {
            console.log("更新失败", res)
            return res
        })
    }

//调用
wx.cloud.callFunction({
  name:'update',
  data:{
   action:'addAddress',
   openid: JSON.parse(wx.getStorageSync('user')).openid,
   fullAddress:that.data.fullAddress
  },
  success(res){
   console.log('添加成功',res);
  },
  fail(res){
   wx.hideLoading()
  }