JavaScript检查单选按钮

Question

好吧,这真的是一个简单的问题,但我真的不懂JavaScript.

基本上我只有一个带有2个单选按钮的表单.

我需要一个基本上说的JavaScript语句

If radiobutton1 is selected then
document.write ("radiobutton1selected")
else if radiobutton2 is selected then
document.write ("radiobutton2selected")

这里有类似的问题我接受,但它们都比我需要的更先进.

Answer 1

单选按钮html:

<input type="radio" name="radionbutton" value="1" id="button1"/>
<input type="radio" name="radionbutton" value="2" id="button"/>

使用Javascript:

var button1 = document.getElementById("button1");
var button2 = document.getElementById("button2");

if (button1.checked){
    alert("radio1 selected");
}else if (button2.checked) {
    alert("radio2 selected");
}