text: var Koa = require( 'koa' );
  var app = new Koa();
  var bodyParser = require( 'koa-bodyparser' );
  var router = require( './route/router' );
  
  
  
  app.use(bodyParser());
  
  app.use(router.routes())
  
  app.listen(3333);
  
  console.log('app is run, and listen localhost: 3333');