<!DOCTYPE html>
<html>
<head>
 <meta charset="UTF-8">
 <title>jQuery自定義數(shù)值抽獎活動代碼 - 何問起</title><base target="_blank" />

 <script type="text/javascript" src="http://down.hovertree.com/jquery/jquery-1.12.4.min.js"></script>
 <script type="text/javascript" src="http://hovertree.com/texiao/jquery/76/pjs_01.js"></script>
 <style type="text/css">
  #bigDiv {
   width: 1080px;
   margin: 0px auto; /*div網(wǎng)頁居中*/
   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; /*讓三個盒子左浮動*/
  }

  #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 id="bigDiv">
  <h1>玩家幸運(yùn)抽獎活動</h1>
  <div id="first"></div>
  <div id="second"></div>
  <div id="third"></div>
  <input type="button" value="開始" id="start">
  <input type="button" value="停止" id="stop" disabled="disabled">
 </div>

 <div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
  <p>適用瀏覽器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗.</p>
  <p>來源： <a >何問起</a>
<a >特效庫</a>
<a >代碼說明</a></p>
 </div>
</body>
</html>

js文件代碼如下：

/**
 * Created by 何問起 午后的陽光 on 2016/5/14.
 */
var ran = 0;
var range = 0;
var myNumber;
/*將產(chǎn)生隨機(jī)數(shù)的方法進(jìn)行封裝*/
function sjs(range) {
 ran = Math.random() * range;//[0,range)的隨機(jī)數(shù)
 var result = parseInt(ran);//將數(shù)字轉(zhuǎn)換成整數(shù)
 return result;
}
/*對顯示隨機(jī)數(shù)的方法進(jìn)行封裝*/
function showRandomNum() {
 var figure = sjs(range);
 $("#first").html(figure);
 var figure2 = sjs(range);
 $("#second").html(figure2);
 var figure3 = sjs(range);
 $("#third").html(figure3);
}
$(function () {
 /*點(diǎn)擊開始按鈕,產(chǎn)生的事件*/
 $("#start").click(function () {
  
  range = prompt("請輸入隨機(jī)數(shù)范圍：", "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("請輸入數(shù)字");
   return ;
  }
  /*將開始標(biāo)簽禁用，停止標(biāo)簽啟用*/
  $("#start")[0].disabled = true;
  $("#stop")[0].disabled = false;
  if (range > 9999 || range<-999)
  {
   // by 何問起
   $("#bigDiv div").css("font-size", "60px");//http://hovertree.com/h/bjaf/omgdn4mu.htm
   //return;
  }
  myNumber = setInterval(showRandomNum, 50);//多長時間運(yùn)行一次，單位毫秒
 });
 /*點(diǎn)擊結(jié)束按鈕*/
 $("#stop").click(function () {
  /*將開始標(biāo)簽啟用，停止標(biāo)簽禁用*/
  $("#start")[0].disabled = false;
  $("#stop")[0].disabled = true;
  clearInterval(myNumber);
 });
});

以上就是，希望對大家學(xué)習(xí)jquery程序設(shè)計(jì)有所幫助。

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