以下是 jquery随机数字抽奖程序代码 的示例演示效果:
部分效果截图:
HTML代码(index.html):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jquery随机数字抽奖程序代码</title>
<script type="text/javascript" src="js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="js/script.js"></script>
</head>
<body>
<style type="text/css">
body{background-color:#fff;text-align:center;padding-top:50px;}
#Result{border:3px solid #40AA53;margin:0 auto;text-align:center;width:400px;padding:50px 0;background:#efe;}
#ResultNum{font-size:50pt;font-family:Verdana}
#Button{margin:50px 0 0 0;}
#Button input{font-size:40px;padding:0 50px;}
#btn{background-color:#40AA53;border:1px solid #40AA53;width:20%;height:45px;margin:0em auto;font-size:1em;border-radius:2.5px;-moz-border-radius:2.5px;-webkit-border-radius:2.5px;color:#FFF;}
</style>
<h1 style="color:#40AA53">抽奖结果</h1>
<div id="Result" style="color:#40AA53">
<span id="ResultNum">0</span>
</div>
<div id="Button">
<input type='button' id="btn" value='开始' onclick='beginRndNum(this)'/>
</div>
</body>
</html>
JS代码(script.js):
var g_Interval = 1;
var g_PersonCount = 500;
//参加抽奖人数var g_Timer;
var running = false;
function beginRndNum(trigger){
if(running){
running = false;
clearTimeout(g_Timer);
$(trigger).val("开始");
$('#ResultNum').css('color','red');
}
else{
running = true;
$('#ResultNum').css('color','black');
$(trigger).val("停止");
beginTimer();
}
}
function updateRndNum(){
var num = Math.floor(Math.random()*g_PersonCount+1);
$('#ResultNum').html(num);
}
function beginTimer(){
g_Timer = setTimeout(beat,g_Interval);
}
function beat(){
g_Timer = setTimeout(beat,g_Interval);
updateRndNum();
}