JS实现简单的抽奖转盘效果示例
s_psycho 人气:0本文实例讲述了JS实现简单的抽奖转盘效果。分享给大家供大家参考,具体如下:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>www.qb5200.com JS抽奖转盘</title> <style> *{ margin:0; padding:0; list-style: none; } .big{ width: 318px; height: 318px; margin:100px auto; } .big>div{ width: 100px; height: 100px; background: pink; float: left; line-height: 100px; text-align: center; border: solid; } .big>div:nth-of-type(5){ background: yellow; cursor: pointer; } #act{ background: red; } </style> </head> <body> <div class="big"> <div class="small" id="act">1</div> <div class="small">2</div> <div class="small">3</div> <div class="small">8</div> <div id="cj">点击抽奖</div> <div class="small">4</div> <div class="small">7</div> <div class="small">6</div> <div class="small">5</div> </div> <script> var arrDiv=document.getElementsByClassName("small"); var oCj=document.getElementById("cj"); var num=0; var shijian=Math.random()*5000+3200; oCj.onclick=function(){ oTime=setInterval(dianji,200); } function dianji() { num=num+1; if (num>arrDiv.length-1){ num=0 } for(j=0;j<arrDiv.length;j++){ arrDiv[j].id=""; } arrDiv[num].id="act"; setTimeout(tingzhi,shijian); function tingzhi() { clearInterval(oTime) } } </script> </body> </html>
使用在线HTML/CSS/JavaScript代码运行工具:http://tools.softyun.net/code/HtmlJsRun测试上述代码,可得如下运行效果:
希望本文所述对大家JavaScript程序设计有所帮助。
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