🌐 Accept input from the command line in Node.js
如何使 Node.js CLI 程序具有交互性？
🌐 How to make a Node.js CLI program interactive?
自 Node.js 7 版本起，提供了 readline 模块 来实现这一功能：从可读流（例如 process.stdin 流）获取输入。在 Node.js 程序执行期间，process.stdin 是终端输入，它可以按行读取数据。
🌐 Node.js since version 7 provides the readline module to perform exactly this: get input from a readable stream such as the process.stdin stream, which during the execution of a Node.js program is the terminal input, one line at a time.
const readline = require('node:readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.question(`What's your name?`, name => {
console.log(`Hi ${name}!`);
rl.close();
});这段代码会询问用户的名称，一旦输入文本并按下回车，我们就会发送一条问候信息。
🌐 This piece of code asks the user's name, and once the text is entered and the user presses enter, we send a greeting.
question() 方法显示第一个参数（一个问题）并等待用户输入。按下回车键后，它会调用回调函数。
🌐 The question() method shows the first parameter (a question) and waits for the user input. It calls the callback function once enter is pressed.
在此回调函数中，我们关闭 readline 接口。
🌐 In this callback function, we close the readline interface.
readline 提供了其他几种方法，请在上面链接的包文档中查看它们。
如果需要输入密码，最好不要将其回显，而是显示 * 符号。
🌐 If you need to require a password, it's best not to echo it back, but instead show a * symbol.