你看的书里面用connect是是什么版本的，然后你现在用的是什么版本的

https://github.com/senchalabs/connect

你看下吧，最新的创建server的方式变了

var connect = require('connect');
var http = require('http');

var app = connect();

// gzip/deflate outgoing responses
var compression = require('compression');
app.use(compression());

// store session state in browser cookie
var cookieSession = require('cookie-session');
app.use(cookieSession({
    keys: ['secret1', 'secret2']
}));
// parse urlencoded request bodies into req.body
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded());

// respond to all requests
app.use(function(req, res){
  res.end('Hello from Connect!\n');
});

//create node.js http server and listen on port
http.createServer(app).listen(3000);