【radiobutton】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
function show() {
console.log(document.getElementById("inp1").checked + " " + document.getElementById("inp2").checked);
}
</script>
</head>
<body>
<input type="radio" id="inp1" name="same" onclick="show();" />
<input type="radio" id="inp2" name="same" onclick="show();" />
</body>
</html>
