node/apps/web/app.js
-------------/public/
--------------------/css/site.css
--------------------/js/
--------------------/img/

app.configure('development',function() {

console.log(__dirname);

// for development, serve static files via express
app.use(express.static(__dirname + '/public'));

app.use(express.errorHandler({dumpExceptions: true, showStack: true}));
});
//...later
app.get('*',route.r404);

var express = require("D:/node/express/modules/express");
 var path=require("D:/node/express/modules/path");
 var app = new express();
 app.get('/',function(req,res){
     res.sendFile(path.join(__dirname,'/index.html'));
 });
 app.get('/about',function(req,res){
    res.sendFile(path.join(__dirname,'/about.html'));
 });
 app.listen(1000);