angular-docs-cn/public/docs/_examples/displaying-data/ts/app/main.1.ts

import {bootstrap} from '@angular/platform-browser-dynamic';
import {AppCtorComponent} from './app-ctor.component';
import {AppComponent as v1} from './app.component.1';
import {AppComponent as v2} from './app.component.2';
import {AppComponent as v3} from './app.component.3';

import {AppComponent as final} from './app.component';

// pick one
//bootstrap(v1);
//bootstrap(v2);
//bootstrap(v3);
bootstrap(final);

// for doc testing
bootstrap(AppCtorComponent);