<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>jQuery自定义数值抽奖活动代码 - 何问起</title><base target="_blank" /> <script type="text/javascript" src="https://down.hovertree.com/jquery/jquery-1.12.4.min.js"></script> <script type="text/javascript" src="https://hovertree.com/texiao/jquery/76/pjs_01.js"></script> <style type="text/css"> #bigDiv { width: 1080px; margin: 0px auto; /*div网页居中*/ background-color: #494949; color: #FFFFFF; } h1 { text-align: center; /*文本居中*/ padding-top: 10px; } #first, #second, #third { width: 360px; height: 360px; font-size: 150px; line-height: 360px; text-align: center; float: left; /*让三个盒子左浮动*/ } #first { background-color: #009BFF; opacity: 0.9; } #second { background-color: #007CCC; } #third { background-color: #005388; } input { font-size: 30px; font-weight: 900; } #start { margin-left: 40%; margin-right: 5%; }a{color:blue;} </style> </head> <body> <div> <h1>玩家幸运抽奖活动</h1> <div></div> <div></div> <div></div> <input type="button" value="开始"> <input type="button" value="停止" disabled="disabled"> </div> <div> <p>适用浏览器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗.</p> <p>来源： <a href="https://hovertree.com">何问起</a> <a href="https://hovertree.com/texiao/">特效库</a> <a href="https://hovertree.com/h/bjaf/07a7l2on.htm">代码说明</a></p> </div> </body> </html>
js文件代码如下：
/** * Created by 何问起 午后的阳光 on 2016/5/14. */ var ran = 0; var range = 0; var myNumber; /*将产生随机数的方法进行封装*/ function sjs(range) { ran = Math.random() * range;//[0,range)的随机数 var result = parseInt(ran);//将数字转换成整数 return result; } /*对显示随机数的方法进行封装*/ function showRandomNum() { var figure = sjs(range); $("#first").html(figure); var figure2 = sjs(range); $("#second").html(figure2); var figure3 = sjs(range); $("#third").html(figure3); } $(function () { /*点击开始按钮,产生的事件*/ $("#start").click(function () { range = prompt("请输入随机数范围：", "168"); if (range == null)//http://hovertree.com/h/bjaf/3siyd3x7.htm { return; } if (range == 0) { return; } if (isNaN(range))//http://hovertree.com/h/bjaf/9vhm2l4f.htm { alert("请输入数字"); return ; } /*将开始标签禁用，停止标签启用*/ $("#start")[0].disabled = true; $("#stop")[0].disabled = false; if (range > 9999 || range<-999) { // by 何问起 $("#bigDiv div").css("font-size", "60px");//http://hovertree.com/h/bjaf/omgdn4mu.htm //return; } myNumber = setInterval(showRandomNum, 50);//多长时间运行一次，单位毫秒 }); /*点击结束按钮*/ $("#stop").click(function () { /*将开始标签启用，停止标签禁用*/ $("#start")[0].disabled = false; $("#stop")[0].disabled = true; clearInterval(myNumber); }); });
以上就是，希望对大家学习jquery程序设计有所帮助。
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