JS实现点击下载

    funDownload(content, filename) {
    // 创建隐藏的可下载链接
      const eleLink = document.createElement('a');
      eleLink.download = filename;
      eleLink.style.display = 'none';
      // 字符内容转变成blob地址
      const blob = new Blob([content]);
      eleLink.href = URL.createObjectURL(blob);
      // 触发点击
      document.body.appendChild(eleLink);
      eleLink.click();
      // 然后移除
      document.body.removeChild(eleLink);
    }