react download

download.txt

    const onDownload = (link) => {
      const tempLink = document.createElement('a');
      tempLink.href = link;
      tempLink.setAttribute('download', 'img.png');
      tempLink.setAttribute('target', '_blank');
      document.body.appendChild(tempLink);
      setTimeout(() => {
        tempLink.setAttribute('download', 'qrcode.png');
        tempLink.click();
        document.body.removeChild(tempLink);
      }, 1000);
    };
    <a onClick={onDownload.bind(this, 'https://www.baidu.com/img/bd_logo1.png')}>Download</a>