Node 核心模块的确切列表

Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行环境，用于构建高性能的网络应用程序。Node.js 提供了一组核心模块，这些模块是 Node.js 运行时环境的一部分，它们被包含在 Node.js 安装包中。这些核心模块提供了许多常用的功能，例如文件操作、网络通信、加密和解密等。

javascript
const fs = require('fs');
fs.readFile('file.txt', 'utf8', (err, data) => {
  if (err) throw err;
  console.log(data);
});

javascript
const net = require('net');
const server = net.createServer((socket) => {
  socket.on('data', (data) => {
    console.log(data.toString());
  });
  socket.write('Hello from server!\r\n');
  socket.end();
});
server.listen(8080, '127.0.0.1', () => {
  console.log('Server started on port 8080');
});

javascript
const crypto = require('crypto');
const algorithm = 'aes-256-cbc';
const key = 'my-secret-key';
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv(algorithm, key, iv);
let encrypted = cipher.update('Hello, world!', 'utf8', 'hex');
encrypted += cipher.final('hex');
const decipher = crypto.createDecipheriv(algorithm, key, iv);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
console.log(decrypted);