angular-docs-cn/aio/content/examples/reactive-forms/src/app/hero-list/hero-list.component.1.html

<!-- #docregion -->
<nav>
  <a *ngFor="let hero of heroes | async" (click)="select(hero)">{{hero.name}}</a>
</nav>

<div *ngIf="selectedHero">
  <app-hero-detail [hero]="selectedHero"></app-hero-detail>
</div>