在提交前检查是否已选中所有动态单选按钮

<form id="myForm">
  <input type="radio" name="option" id="option1"> Option 1
  <input type="radio" name="option" id="option2"> Option 2
  <input type="radio" name="option" id="option3"> Option 3
  <button type="submit">Submit</button>
</form>

<script>
  document.getElementById("myForm").addEventListener("submit", function(event) {
    var option1 = document.getElementById("option1");
    var option2 = document.getElementById("option2");
    var option3 = document.getElementById("option3");

    if (!option1.checked && !option2.checked && !option3.checked) {
      event.preventDefault(); // 阻止表单提交
      alert("请选中所有选项");
    }
  });
</script>