An example of a web server written with Node which responds with 'Hello World':
下边是一个用Node编写的对所有请求简单返回'Hello World‘的web服务器例子：
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');To run the server, put the code into a file called example.js and execute
it with the node program
要运行这个服务器程序，只要将上述代码保存为文件example.js并用node程序执行此文件：
> node example.js
Server running at http://127.0.0.1:8124/All of the examples in the documentation can be run similarly.
此文档中所有例子均可用同样的方法运行。