nav.component.html

<div class="nav">
    <ul>
        <li><a [routerLink]="['Index']"><img src="assets/imgs/logo.png" height="26px"/></a>
        </li>
        <li *ngFor="let v of DataStore.Nav; let k = index " [ngClass]="{'dropdown': v.children}">
            <a>{{v.name}}</a>
            <ul [ngClass]="{'dropdown-content': v.children}">
                <li *ngFor="let vv of v.children; let kk = index" [ngClass]="{'disabled': vv.disable}">
                    <a *ngIf="vv.href" [routerLink]="[vv.href]">{{vv.name}}</a>
                    <a id="{{vv.id}}" *ngIf="vv.click" (click)="click(vv.click)">{{vv.name}}</a>
                </li>
            </ul>
        </li>
    </ul>
</div>