用javascript下载文本文件

function downloadTextFile(text, filename) {
  const element = document.createElement('a');
  element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
  element.setAttribute('download', filename);

  element.style.display = 'none';
  document.body.appendChild(element);

  element.click();

  document.body.removeChild(element);
}

// 调用示例
const text = '这是要下载的文本内容';
const filename = 'example.txt';
downloadTextFile(text, filename);