从控制台读取输入，无需无条件等待(非等待scanf)

const readline = require('readline');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

rl.question('请输入：', (answer) => {
  console.log(`你输入的是：${answer}`);
  rl.close();
});

const inquirer = require('inquirer');

inquirer.prompt([
  {
    type: 'input',
    name: 'input',
    message: '请输入：'
  }
]).then((answers) => {
  console.log(`你输入的是：${answers.input}`);
});

const prompt = require('prompt-sync')();

const input = prompt('请输入：');
console.log(`你输入的是：${input}`);