alarm-target.component.html

<nz-modal [(nzVisible)]="isVisible" [nzFooter]="null" nzTitle="选择告警目标" (nzOnCancel)="handleCancel()"
          (nzOnOk)="handleOk()">
  <div style="padding: 10px;">
    <nz-tree
            [(ngModel)]="nodes"
            [nzCheckable]="true"
            [nzMultiple]="true"
            [nzAsyncData] = "true""
            (nzClick)="mouseAction('expand',$event)"
            (nzExpandChange)="mouseAction('expand',$event)" >
    </nz-tree>
  </div>
</nz-modal>