【http】

var qs = require('querystring')
require('http').createServer(function(req, res) {
    //res.writeHead(200, {'Content-Type': 'image/png'})
    /*var stream = require('fs').createReadStream('image.png')
    stream.on('data', function(data) {
        res.write(data)
    })
    stream.on('end', function() {
        res.end()
    })*/
    //require('fs').createReadStream('image.png').pipe(res)

    if ('/' == req.url) {
        res.writeHead(200, {'Content-Type': 'text/html'})
        res.end([
            '<form method="POST" action="/url">',
                '<input type="text" name="name">',
                '<button>Submit</button>',
            '</form>'
        ].join(''))
    } else if ('/url' == req.url && 'POST' == req.method) {
        var body = ''
        req.on('data', function(data) {
            body += data
        })
        req.on('end', function() {
            res.writeHead(200, {'Content-Type': 'text/html'})
            res.end('Content-Type: ' + req.headers['content-type'] + 'Data:' + qs.parse(body).name)
        })
    } else {
        res.writeHead(200, {'Content-Type': 'text/html'})
        res.end('Not Found')
    }
}).listen(3000)

console.log(qs.parse('name=Guillermo'))