如何在angular 5中用blob函数下载文件

npm install rxjs

import { Observable, Subscription } from 'rxjs';

downloadFile(url: string): Subscription {
  return this.http.get(url, { responseType: 'blob' }).subscribe((data: Blob) => {
    const downloadUrl = URL.createObjectURL(data);
    const link = document.createElement('a');
    link.href = downloadUrl;
    link.download = 'filename.ext'; // 替换为你想要的文件名和扩展名
    link.click();
    URL.revokeObjectURL(downloadUrl);
  });
}

this.downloadFile('https://example.com/file-url');