如何在单击时更改单选按钮的背景颜色(联系表格7)

<input type="radio" id="radioButton" name="color" value="red">
<label for="radioButton">Red</label>

function changeBackgroundColor() {
  var radioButton = document.getElementById("radioButton");
  if (radioButton.checked) {
    radioButton.style.backgroundColor = "red";
  } else {
    radioButton.style.backgroundColor = "";
  }
}

<input type="radio" id="radioButton" name="color" value="red" onclick="changeBackgroundColor()">
<label for="radioButton">Red</label>