upload.component.html

<!--添加图片-->
<nz-modal [(nzVisible)]="isVisible" [nzTitle]="title" (nzOnCancel)="handleCancel()" (nzOnOk)="handleOk()" [nzOkLoading]="isOkLoading">
  <form  nz-form>
    <nz-form-item>
      <nz-form-label [nzSpan]="7" nzRequired nzFor="group">选择文件</nz-form-label>
      <nz-form-control [nzSpan]="12">
        <nz-upload
                [nzBeforeUpload]="beforeUpload"
                [(nzFileList)]="fileList">
          <button nz-button>
            <i class="anticon anticon-upload"></i><span>上传</span>
          </button>
        </nz-upload>
      </nz-form-control>
    </nz-form-item>
  </form>
</nz-modal>