Angular [ngSwitch]、*ngSwitchCase、ng-container(14)

html部分

<h5 class="btn-primary btn" (click)="CountPlus()">[ngSwitch]</h5>
<ng-container [ngSwitch]="count % 3">
  <ng-container *ngSwitchCase="0">
    <p>餘數0</p>
  </ng-container>
  <ng-container *ngSwitchCase="1">
    <p>餘數1</p>
  </ng-container>
  <ng-container *ngSwitchCase="2">
    <p>餘數2</p>
  </ng-container>
</ng-container>

ts部分

  count = 1;
  CountPlus() {
    this.count++;
  }

參考資料
1.保哥的Angular 開發實戰：從零開始
2.Angular官網