关于className属性的问题
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>控制类名(className属性)</title>
</head>
<style style = "text/css">
body{
font-size:20px;
color:red;
/*background-color:#666;*/
}
.one{
width:200px;
background-color:#666;
}
.two{
font-size:12px;
color:#F00;
}
</style>
<body>
<p id = "con" class = "one">JavaScript使网页显示动态效果并实现与用户交互功能。</p>
<form>
<input type ="button" onclick ="modifyclass()" value ="点击更改属性" >
<input type ="button" onclick ="modify1()" value ="点击显示更改后的属性" >
</form>
<script type ="text/javascript">
var myclass = document.getElementById("con");
document.write("P元素的Class值为:"+myclass.className+"<br>");
function modifyclass(){
myclass.className = "two";
}
function modify1(){
document.write("改变后P元素的Class值是:"+myclassName);
}
</script>
</body>
</html>我的问题是:想显示更改后P元素的className属性的值,为什么点击“显示更改后的属性”按钮时没有反应呢?