首页javascriptdivJavascript Element - 如何基于值更改div背景颜色

Javascript Element - 如何基于值更改div背景颜色

我们想知道如何基于值更改div背景颜色。

<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){
    var actualchoices = 1
    var scorecolor;
    if (actualchoices >= 1) {
        scorecolour = document.getElementById("main");
        scorecolour.style.backgroundColor = "green"
    } else {
        scorecolour = document.getElementById("main");
        scorecolour.style.backgroundColor = "red"
    }
}
</script>
</head>
<body>
  <div id="main">test</div>
</body>
</html>