<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <title>抽奖效果演示</title> <style> .rotary { position: relative; width: 854px; height: 504px; margin: 0 auto; background: #d71f2e url(p_w_picpaths/bg1.png);} .rotaryArrow { position: absolute; left: 181px; top: 104px; width: 294px; height: 294px; cursor: pointer; background-p_w_picpath: url(p_w_picpaths/arrow.png);} .list { position: absolute; right: 48px; top: 144px; width: 120px; height: 320px; overflow: hidden;} .list h3 { display: none;} .list ul { list-style-type: none;} .list li { height: 37px; font: 14px/37px "Microsoft Yahei"; color: #ffea76; text-indent: 25px; background: url(p_w_picpaths/user.png) 0 no-repeat;} .result { display: none; position: absolute; left: 130px; top: 190px; width: 395px; height: 118px; background-color: rgba(0,0,0,0.75); filter: alpha(opacity=90);} .result a { position: absolute; right: 5px; top: 5px; width: 25px; height: 25px; text-indent: -100px; background-p_w_picpath: url(p_w_picpaths/close.png); overflow: hidden;} .result p { padding: 45px 15px 0; font: 16px "Microsoft Yahei"; color: #fff; text-align: center;} .result em { color: #ffea76; font-style: normal;} </style> </head> <body> <h1>抽奖效果演示</h1> <!-- Demo start --> <div class="rotary"> <div class="rotaryArrow" id="rotaryArrow"></div> <!--<div class="list"> <h3>中奖名单</h3> <ul> <li>jq22.com</li> <li>1569****851</li> <li>1515****206</li> <li>1550****789</li> <li>1370****627</li> <li>1828****215</li> <li>1589****572</li> <li>1583****825</li> <li>1396****805</li> <li>1332****261</li> <li>1884****863</li> <li>1384****955</li> <li>1897****137</li> <li>1342****973</li> <li>1558****071</li> <li>1554****168</li> <li>1562****018</li> <li>1805****856</li> <li>1354****809</li> <li>1383****364</li> </ul> </div>--> <div class="result" id="result"> <p id="resultTxt"></p> <a href="javascript:" id="resultBtn" title="关闭">关闭</a> </div> </div> <!-- Demo end --> <script src="js/jquery-1.8.3.min.js"></script> <script src="js/jquery.rotate.min.js"></script> <script> $(function(){ var $rotaryArrow = $('#rotaryArrow'); var $result = $('#result'); var $resultTxt = $('#resultTxt'); var $resultBtn = $('#result'); $rotaryArrow.click(function(){ var lottery_flag = 0; /** * 数组 lottery为中奖概率数组 * * 中奖概率: * 0-不中奖:20% * 1-1元代金券:35% * 2-5元代金券:20% * 3-10元代金券:12% * 4-20元代金券:8% * 5-50元代金券:1% * 6-30元代金券:4% */ var lottery = [5,3,5,8,12,100,25]; var data = [0, 1, 2, 3, 4, 5, 6]; for (i=0;i<data.length;i++){ if (Math.floor(Math.random()*lottery[i]) == 1){ lottery_flag = data[i]; break; } } var flag = 177; //设置未中奖的默认角度 var date = new Date(); var seconds = date.getSeconds(); if(seconds % 2 == 0){ //根据时间秒数是否被2整除,模拟未中奖时指针对两个未中奖角度的随机 flag = 0; } switch(lottery_flag){ case 1: rotateFunc(1,87,'恭喜您获得了 <em>1</em> 元代金券'); break; case 2: rotateFunc(2,43,'恭喜您获得了 <em>5</em> 元代金券'); break; case 3: rotateFunc(3,134,'恭喜您获得了 <em>10</em> 元代金券'); break; case 4: rotateFunc(5,223,'恭喜您获得了 <em>20</em> 元代金券'); break; case 5: rotateFunc(6,268,'恭喜您获得了 <em>50</em> 元代金券'); break; case 6: rotateFunc(7,316,'恭喜您获得了 <em>30</em> 元代金券'); break; default: rotateFunc(0,flag,'很遗憾,这次您未抽中奖,继续加油吧'); } }); var rotateFunc = function(awards,angle,text){ //awards:奖项,angle:奖项对应的角度 $rotaryArrow.stopRotate(); $rotaryArrow.rotate({ angle: 0, duration: 5000, animateTo: angle + 1440, //angle是图片上各奖项对应的角度,1440是让指针固定旋转4圈 callback: function(){ $resultTxt.html(text); $result.show(); } }); }; $resultBtn.click(function(){ $result.hide(); }); }); </script> <!-- 以下是统计及其他信息,与演示无关,不必理会 --> <style> * { margin: 0; padding: 0;} body { font-family: Consolas,arial,"宋体";} h1 { width: 900px; margin: 40px auto; font: 32px "Microsoft Yahei"; text-align: center;} .explain, .dowebok-explain { margin-top: 20px; font-size: 14px; text-align: center; color: #f50;} .vad { margin: 50px 0 5px; font-family: Consolas,arial,宋体; text-align:center;} .vad a { display: inline-block; height: 36px; line-height: 36px; margin: 0 5px; padding: 0 50px; font-size: 14px; text-align:center; color:#eee; text-decoration: none; background-color: #222;} .vad a:hover { color: #fff; background-color: #000;} .thead { width: 728px; height: 90px; margin: 0 auto; border-bottom: 40px solid #fff;} .code { position: relative; margin-top: 100px; padding-top: 41px;} .code h3 { position: absolute; top: 0; z-index: 10; width: 100px; height: 40px; font: 16px/40px "Microsoft Yahei"; text-align: center; cursor: pointer;} .code .cur { border: 1px solid #f0f0f0; border-bottom: 1px solid #f8f8f8; background-color: #f8f8f8;} .code .h31 { left: 0;} .code .h32 { left: 102px;} .code .h33 { left: 204px;} .code .h34 { left: 306px;} .code { width: 900px; margin-left: auto; margin-right: auto;} pre { padding: 15px 0; border: 1px solid #f0f0f0; background-color: #f8f8f8;} .f-dn { display: none;} </style> </body> </html>
在线抽奖大转盘和概率计算
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