基于RadioButtons的IsChecked实现按钮启用

<input type="radio" id="option1" name="options" value="option1">
<label for="option1">Option 1</label>

<input type="radio" id="option2" name="options" value="option2">
<label for="option2">Option 2</label>

<input type="radio" id="option3" name="options" value="option3">
<label for="option3">Option 3</label>

var option1 = document.getElementById("option1");
var option2 = document.getElementById("option2");
var option3 = document.getElementById("option3");
var button = document.getElementById("button");

option1.addEventListener("change", updateButtonState);
option2.addEventListener("change", updateButtonState);
option3.addEventListener("change", updateButtonState);

function updateButtonState() {
  if (option1.checked || option2.checked || option3.checked) {
    button.disabled = false; // 启用按钮
  } else {
    button.disabled = true; // 禁用按钮
  }
}

<button id="button" disabled>Submit</button>