爬坑

一、关于轮播高度问题

给最外面div和img高度

<nz-carousel nzAutoPlay class="item">
        <div  nz-carousel-content *ngFor="let item of array">
          <img [src]="item" alt="" class="top-img">
        </div>
      </nz-carousel>

.item {
  height: 210px;
}
.top-img {
  width: 100%;
  height: 210px;
}