javascript getElementByTagName的使用_javascript技巧
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>javascript getElementByTagName的使用</title>
<style type="text/css">
.dd1{ color:#FF0000;
}
.dd2{ color:blue;
}
</style>
<script type="text/javascript">
function changeColor()
{
//document.getElementById("s1").getElementsByTagName("a").className="dd2";
var obj1,num,i;
obj1=document.getElementById("s1").getElementsByTagName("a");
num=document.getElementById("s1").getElementsByTagName("a").length;
for (i=0;i<num;i++)
{
obj1[i].className="dd2";
}
}
</script>
</head>
<body>
<div id="s1" onmouseover="changeColor()">
<a href="ddd" class="dd1">dfdfd</a>
<a href="ddd" class="dd1">dfdfd</a>
<a href="ddd" class="dd1">dfdfd</a>
</div>
</body>
</html> 以上就是的内容，更多相关内容请关注PHP中文网（www.php.cn）！
![[Web front-end] Permulaan pantas Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
