
    <nz-checkbox-group [nzOptions]="options1" [(ngModel)]="value" (ngModelChange)="log($event)" />
    <br />
    <br />
    <nz-checkbox-group [nzOptions]="options2" [(ngModel)]="value" (ngModelChange)="log($event)" />
    <br />
    <br />
    <nz-checkbox-group nzDisabled [nzOptions]="options3" [(ngModel)]="value" (ngModelChange)="log($event)" />
  