将Angular中的* ngIf属性合并到输入中

@Component({
  selector: 'app-example',
  template: `
    <div *ngIf="showContent">
      <!-- 显示的内容 -->
    </div>
  `,
})
export class ExampleComponent {
  @Input() showContent: boolean;
}

@Component({
  selector: 'app-parent',
  template: `
    <app-example [showContent]="shouldShow"></app-example>
    <button (click)="toggleContent()">Toggle Content</button>
  `,
})
export class ParentComponent {
  shouldShow: boolean = true;

  toggleContent() {
    this.shouldShow = !this.shouldShow;
  }
}