至于从主文件中分离路由..

As far as separating routes from main file is concerned..

Server.js

//include the routes file
var routes = require('./routes/route');
var users = require('./routes/users');
var someapi = require('./routes/1/someapi');

////////
app.use('/', routes);
app.use('/users', users);
app.use('/1/someapi', someapi);

routes/route.js

//last line - try this
module.exports = router;

对于新项目，您也可以在命令行上尝试

Also for new project you can try on command line

express project_name

为此你需要 express-generator

You will need express-generator for that