jquery实现网页抽奖程序

来源：互联网发布：cad for mac打不开编辑：程序博客网时间：2024/04/30 16:35
<!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=gb2312" /><meta http-equiv="Content-Language" content="zh-CN"/><title>M.I.T. Talk 抽奖</title> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <style type="text/css"> body {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;} </style> <script type='text/javascript'>  <!--  var g_Interval = 10;  var g_PersonCount = 100;//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();  }  //-->  </script></head><body><h1>抽奖结果</h1><div id="Result"> <span id="ResultNum">0</span></div><div id="Button"><input type='button' value='开始' onclick='beginRndNum(this)'/></div></body></html>