JavaScript实现的随机色标签云

2015/03/13 39030

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<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>无标题文档</title>

<style type="text/css">

*{

    margin:0;

    padding:0

}

a{ 

    text-decoration:none

}


#wrap{

    width:400px;

    margin:auto

}

</style>

</head>


<body>

<div id="wrap">

<a href="#">web标准学习</a>

   <a href="#">css</a>

   <a href="#">javascript</a>

   <a href="#">html5</a>

   <a href="#">canvas</a>

   <a href="#">video</a>

   <a href="#">audio</a>

   <a href="#">jQuery</a>

   <a href="#">jQuerymobile</a>

   <a href="#">flash</a>

   <a href="#">firefox</a>

   <a href="#">chrome</a>

   <a href="#">opera</a>

   <a href="#">IE9</a>

   <a href="#">css3.0</a>

   <a href="#">andriod</a>

   <a href="#">apple</a>

   <a href="#">google</a>

   <a href="#">jobs</a>

</div>

<script type="text/javascript">


//随机方法

function rand(num)

{

return parseInt(Math.random()*num+1);

}


//随机颜色值

function randomColor()

{

var str = Math.ceil((Math.random()*16777215)).toString(16); //把数字转换成16进制

if(str.length < 6)

{

str = "0" + str;

}

return str;

}



//标签实现

var aList = document.getElementById("wrap").getElementsByTagName("a");

var i = 0;

var len = aList.length;

for(i;i<len;i++)

{

aList[i].className = "color"+rand(5); //生成随机类名

aList[i].style.fontSize = rand(12)+12+"px"; //随机字号

aList[i].style.color = "#"+randomColor();

aList[i].onmouseover = function()

{

this.style.background = "#"+randomColor();

}

aList[i].onmouseout = function()

{

this.style.background = "";

}

}

</script>

</body>

</html>