如何在html表单向导中阻止表单数据

<form onsubmit="return validateForm()">
  <!-- 表单内容 -->
  <input type="text" id="name" required>
  <input type="email" id="email" required>
  <button type="submit">提交</button>
</form>

<script>
function validateForm() {
  // 表单验证逻辑
  var name = document.getElementById("name").value;
  var email = document.getElementById("email").value;

  if (name === "" || email === "") {
    alert("请填写完整的表单信息");
    return false; // 阻止表单提交
  }

  // 其他验证逻辑...

  return true; // 允许表单提交
}
</script>

<form id="myForm">
  <!-- 表单内容 -->
  <input type="text" id="name" required>
  <input type="email" id="email" required>
  <button type="submit" form="myForm" formnovalidate>提交</button>
</form>