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Node.js 教程

Node.js is an open source server environment.

Node.js allows you to run JavaScript on the server.

Start learning Node.js now »

现在通过实例来学习

Our "Show Node.js" tool makes it easy to learn Node.js, it shows both the code and the result.

实例

var http = require('http');

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World!');
}).listen(8080);
Run example »

单击"Run example"运行实例按钮查看其工作原理。


Examples Running in the Command Line Interface

In this tutorial there will be some examples that are better explained by displaying the result in the command line interface.

When this happens, The "Show Node.js" tool will show the result in a black screen on the right:

实例

console.log('This example is different!');
console.log('The result is displayed in the Command Line Interface');
Run example »

单击"Run example"运行实例按钮查看其工作原理。


Node.js Reference

Node.js has a set of built-in modules.

Built-in Modules


Download Node.js

Download Node.js from the official Node.js web site: https://nodejs.org