逐渐迁移别的技术论坛博文到该博客，这是之前写的一篇文章。项目中用到了一个圆环周围均匀分布内容。直接上代码，毕竟对程序员来说talk is cheap,show me code.
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="X-UA-Compatible" content=”IE=Edge,chrome=1″ /><meta name="renderer" content="webkit">
<title>无标题</title>
<style type="text/css">
.centerDiv{
width:600px;
height:600px;
margin:0 auto;
margin-top:200px;
position:relative;
}
.dashedCircle{
height:300px;
width:300px;
border-radius: 100%;
border: 1px dashed #494949;
margin: 0 auto;
}
.circle,.circleCenter{
width:40px;
height:40px;
line-height:40px;
text-align:center;
color:#fff;
background:#97e49a;
border-radius: 100%;
position: absolute;
}
.circleCenter{
width:20px;
height:20px;
line-height:20px;
}
</style></head><body>
<div class="centerDiv">
<div class="dashedCircle"></div>
<div class="circleCenter"></div>
<div class="circle">7</div>
<div class="circle">6</div>
<div class="circle">5</div>
<div class="circle">4</div>
<div class="circle">3</div>
<div class="circle">2</div>
<div class="circle">1</div>
<div class="circle">12</div>
<div class="circle">11</div>
<div class="circle">10</div>
<div class="circle">9</div>
<div class="circle">8</div>
</div>
<script type="text/javascript">
window.onload=function(){
var dx=280,
dy=130,
s=180,//半径
x=Math.sin(0),
y=Math.cos(0),
dig=2*Math.PI/12;
var circle=document.querySelectorAll(".circle");
for(var i=0;i<12;i++){
var x=Math.sin(i*dig);
var y=Math.cos(i*dig);
var topValue=Number(dy+y*s),
leftValue=Number(dx+x*s);
circle[i].style.top=topValue+"px";
circle[i].style.left=leftValue+"px";
}
var circleCenterObj=document.querySelector(".circleCenter");
circleCenterObj.style.top=Number(dy)+10;//10是中心小圆半径
circleCenterObj.style.left=Number(dx)+10;
}
</script></body></html>
