以下脚本输出什么？

function exCallbackSimple(callback, n) {

       if (n > 3) {

                callback(n);

       } else {

                console.log('不调用回调函数');

       }

}

exCallbackSimple((k) => {

       console.log('k=', k);

}, 8);

app.______('/', (req, res) => {

  res.send('Hello World!');

});

exports.sendOK = (req, res) => {

        res.send('ok');

};

那么在router/banjiguanli.js中需要导入该函数，并创建与此函数对应的路由，脚本如下：

const express = require('express');

const router = express.Router();

const ______________= require('../router-handler/banjiguanli'); banjiguanliHandler

router.put('/sendOK',banjiguanliHandler.____________ ); sendOK

module.exports = ____________   router

两个空白处应该填写什么？选出错误的说法。

 const obj1 = {

      x: 88

 };

 const obj2 = {...obj1,

      y: 66

 }; 

 console.log(obj2);

const express = require('express');

const app = express();

app.get('/', (req, res) => {

    res.send(_____________________);

});

app.listen(3000, () => {

    console.log('Example app listening on port 3000!');

});

const arr = [1, 2, 3];正着写是赋值

const [a, b, c] = arr;反着写是解构

console.log(b);

data.js文件在与当前文件在同一个目录下，文件内容：

exports.data = {a:9};

app.use(express.json());

app.use(express.urlencoded({ extended: true }));

请问以上脚本的位置用该在哪里？

const express = require('express');

①

const app = express();

②

app.post('/', (req, res) => {

});

③

app.listen(3000, () => {

    console.log('Example app listening on port 3000!');

});

const db = {

    host: '______________',

    user: 'root',

    password: 'mima',

    database: '_______________',

    ...

};

const myName = "Alice";

const myToys = [3, 7];

function myMotto() {

    return 'My motto: Practice makes perfect.';

}

const greeting = `Hello, $${myName}!I have $${myToys [0] + myToys[1]}toys! ${myMotto()}`;反引号 占位符 变量

console.log(greeting); 

const mysql = require('mysql2/promise');

const pool = mysql.createPool({ /* 配置省略 */ });

rows为用户信息查询结果

const axios = require('axios');

const apiUrl = 'http://v.juhe.cn/weather/index';

const requestParams = {

     key: '657657',

     cityname: '呼和浩特',

};

axios.get(apiUrl, { params: requestParams })

    .________________(response => {

        if (response.status === 200) {

            const responseResult = response.data;

            res.json(responseResult);

        } else {

            res.status(500).json({ error: '请求异常' });

        }

    })

    ._______________(error => {

        res.status(500).json({ error: '网络请求失败' });

    });

const express = require('express');

①

const app = express();

②

app.get('/login', (req, res) => {

    res.sendFile('login.html', { root: 'public' });

});

③

app.listen(5000, () => {

    console.log(`Server is running on port 5000`);

});

某项目的静态资源均存放在根目录下的public目录中。以下脚本的空白处应该填写什么？

const express = require('express');

const app = express();

app.use(_____________________);答案在上一题

app.get('/login', (req, res) => {

    res.sendFile('login.html', ____________________);

});