
    <nz-upload
      nzName="file"
      [(nzFileList)]="files"
      [nzTransformFile]="transformFile"
      [nzData]="getExtraData"
      [nzAction]="mockOSSData.host"
      (nzChange)="onChange($event)"
    >
      Photos:
      <button nz-button>
        <nz-icon nzType="upload" />
        Click to Upload
      </button>
    </nz-upload>
  