js实现增加数字显示的环形进度条效果

2019-11-19 17:43:29

字体：大中小

来源：转载

供稿：网友

效果如下：

代码如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><link><meta name="page-view-size" content="640*530"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><style> .wapper{  position:absolute;  left:100px;  top:100px;  box-sizing:border-box; } .text{  position:absolute;  left:30px;  top:40px;  font-family:"Microsoft YaHei";  font-weight:bold;  color:indianred; } .rect{  position:absolute;  width:50px;  height:100px;  overflow:hidden; } .right{  left:50px; } .circle{  position:absolute;  width:100px;  height:100px;  border-radius:50%;  box-sizing:border-box;  border:5px solid indianred; } .circle_right{  left:-50px;  clip:rect(0px 50px 100px 0px);  animation:roll 5s linear 0s 1 forwards; } .circle_left{  clip:rect(0px 100px 100px 50px);  animation:roll 5s linear 5s 1 forwards; } @keyframes roll{  0%{transform:rotate(0deg)}  100%{ transform:rotate(180deg)} }</style><body leftmargin="0" topmargin="0"><div class="wapper"> <div class="rect right"><div class="circle circle_right"></div></div> <div class="rect left"><div class="circle circle_left"></div></div> <div class="text"><span id="num">1</span><span>%</span></div></div></body><script type="text/javascript"> window.onload=function(){  var $num=document.getElementById('num');  (function(){   var i=1,timer;   add();   function add(){    var timer=setTimeout(function(){     add();    },100);    $num.innerHTML=i;    i<100?i++:clearTimeout(timer)   }  })(); }</script></html>

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