文件内容格式：一行标题一行链接

fetch('文件.txt')
  .then(response => response.text())
  .then(data => {
    const lines = data.split('\n');
    for (let i = 0; i < lines.length; i += 2) {
      const title = lines[i];
      const link = lines[i + 1];
      const a = document.createElement('a');
      a.href = link;
      a.textContent = title;
      document.body.appendChild(a);
    }
  });