代码如下:

var http = require('http');
http.createServer(function (req, res){res.writeHead(200,{'Content-Type': 'text/plain'});res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337');

运行如下：

详情见《深入浅出NODE》P156