很简单

var http = require('http');
var connect = require('connect');
var app = connect().use(connect.static(__dirname)); //or any other use
var server = http.createServer(app).listen(port, host, callback);

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想明白了

var connect = require("connect");
var server = require("http").createServer(connect());
server.listen(function() {
  console.log(server.address()); // Print host name and port number.
});