效果如下：
代碼如下：
<!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>以上就是本文的全部內容，希望本文的內容對大家的學習或者工作能帶來一定的幫助，同時也希望多多支持武林網！
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