【报错内容】：

Error: errCode: -1 unknown error | errMsg: parameter should be object instead of undefined;
    at Object.assertType (D:\wechat\note\cloudfunctions\updateUser\node_modules\wx-server-sdk\index.js:7648:15)
    at D:\wechat\note\cloudfunctions\updateUser\node_modules\wx-server-sdk\index.js:1493:26
    at new Promise ()
    at Query.update (D:\wechat\note\cloudfunctions\updateUser\node_modules\wx-server-sdk\index.js:1491:16)
    at u.exports.main [as handler] (D:\wechat\note\cloudfunctions\updateUser\index.js:17:8)
    at D:\Program Files\Tencent\微信web开发者工具\code\package.nw\js\common\cloud-functions-debugger-server\worker\node.js:1:37172
    at processTicksAndRejections (internal/process/task_queues.js:85:5)

【调用云数据库】：

【结果】：