angular-cn/public/docs/_examples/cb-dependency-injection/ts/app/app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule }  from '@angular/router';

const routes: Routes = [];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  providers: [],
  exports: [RouterModule]
})
export class AppRoutingModule {}