<!DOCTYPE html><html><head> <title>抽獎</title> <meta charset="utf-8"> <link rel="stylesheet" type="text/css" href="css/style.css"> <script type="text/javascript" scr="js/jss.js"></script></head><body> <div id="title" class="title">開始抽獎啦！</div> <div class="btns"> <span id="play">開 始</span> <span id="stop">結 束</span> </div></body></html>var data=['iphone6s','honor5x','mate8','p9','v8','100元代金券'], timer=null, flag=0;window.onload=function(){ var play=document.getElementById('play'), stop=document.getElementById('stop'); //開始抽獎 //鼠標事件 play.onclick=playFun; stop.onclick=stopFun; //鍵盤事件 document.onkeyup=function(event){ event = event || window.event; if (event.keycode==13) { if (flag==0) { playFun; flag=1 ? ?} else { ? ? stopFun; ? ? flag=0; ? ?} } }}function playFun(){ var title=getElementById('title'), play=getElementById('play'); clearinterval(timer); timer=setInterval( function(){ var random=Math.floor(Math.random()*data.length); title.innerHTML=data[random]; },50) play.style.background='#999';}function stopFun(){ clearinterval(timer); var play=getElementById('play'); play.style.background='#036';}
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