javascript
作者:jegg
年底將至,許多公司忙著搞年會,會上一般都會有一些抽獎活動,下面的程式就是用javascript 寫的一個簡單的抽獎系統與大家共用。
此代碼借鑒了網上的一些網友的代碼,又加上了一些諸如不重複抽獎之類的改進。大概思路如下:
1.將所有的的抽獎資料(這裡為手機號碼)存入數組中。
2.使用random 函數隨機產生該數組的INDEX
3.使用setInterval 函數以極短的時間間隔產生該數組隨機INDEX所對應的手機號碼,並顯示。
4.使用removeEleAt(index)函數刪除隨機產生過的手機號碼。並且重新組織產生剩餘的手機號碼為一個新的數組,為下次使用。
使用方法:
將以下原代碼拷到寫字板上,然後將txt屬性該成html即可。如果出現顯示亂碼,請改變網頁編碼(查看--編碼)。
原代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN">
<html>
<head>
<title> 2006年會抽獎系統</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script language="javascript">
// global variables
var timer;
var flag = new Array(100);
var existingnum = new Array(100);
var clickTimes = 0;
var randnum;
var cellnum =1;
var mobile = new Array();
// set data here!!
mobile[0]=13020000100;
mobile[1]=13020000101;
mobile[2]=13020000102;
mobile[3]=13020000103;
mobile[4]=13020000104;
mobile[5]=13020000105;
mobile[6]=13020000106;
mobile[7]=13020000107;
mobile[8]=13020000108;
mobile[9]=13020000109;
mobile[10]=13020000110;
mobile[11]=13020000111;
mobile[12]=13020000112;
mobile[13]=13020000113;
mobile[14]=13020000114;
mobile[15]=13020000115;
mobile[16]=13020000116;
mobile[17]=13020000117;
mobile[18]=13020000118;
mobile[19]=13020000119;
mobile[20]=13020000120;
mobile[21]=13020000121;
mobile[22]=13020000122;
mobile[23]=13020000123;
mobile[24]=13020000124;
mobile[25]=13020000125;
mobile[26]=13020000126;
mobile[27]=13020000127;
mobile[28]=13020000128;
mobile[29]=13020000129;
mobile[30]=13020000130;
mobile[31]=13020000131;
mobile[32]=13020000132;
mobile[33]=13020000133;
mobile[34]=13020000134;
mobile[35]=13020000135;
mobile[36]=13020000136;
mobile[37]=13020000137;
mobile[38]=13020000138;
mobile[39]=13020000139;
mobile[40]=13020000140;
mobile[41]=13020000141;
mobile[42]=13020000142;
mobile[43]=13020000143;
mobile[44]=13020000144;
mobile[45]=13020000145;
mobile[46]=13020020146;
var num = mobile.length-1;
function getRandNum(){
document.getElementById("result").value = mobile[GetRnd(0,num)];
}
function start(){
clearInterval(timer);
timer = setInterval('change()',50);
}
function ok(){
clearInterval(timer);
}
function GetRnd(min,max){
randnum = parseInt(Math.random()*(max-min+1));
return randnum;
}
function setTimer(){
timer = setInterval("getRandNum();",10);
document.getElementById("start").disabled = true;
document.getElementById("end").disabled = false;
}
function clearTimer(){
noDupNum();
clearInterval(timer);
document.getElementById("start").disabled = false;
document.getElementById("end").disabled = true;
}
function noDupNum(){
// to remove the selected mobile phone number
mobile.removeEleAt(randnum);
// to reorganize the mobile number array!!
var o = 0;
for(p=0; p<mobile.length;p++){
if(typeof mobile[p]!="undefined"){
mobile[o] = mobile[p];
o++;
}
}
num = mobile.length-1;
}
// method to remove the element in the array
Array.prototype.removeEleAt = function(dx)
{
if(isNaN(dx)||dx>this.length){return false;}
this.splice(dx,1);
}
// set mobile phone numbers to the table cell
function setValues(){
document.getElementById(cellnum).value = document.getElementById("result").value ;
cellnum++;
}
</script>
</head>
<body>
<center>
<div> </div>
<div id="main">
<div>
<h1>中獎號碼</h1>
<p>
<input id="result" type="text" size="30" style="height:130px;width:800px;border:2px solid red;font-size:120;" readonly/></p>
<p>
<input id="start" type="button" value="開始" style="border: 1px solid; border-color: #aaa 000 #000 #aaa;width:4em; background: #fc0;" />
<input id="end" type="button" value="停" style="border: 1px solid; border-color: #aaa 000 #000 #aaa;width:4em; background: #fc0;" disabled/>
</p>
<p><strong>一等獎(10名)</strong></p>
<table width="946" height="79" border="1">
<tr>
<td><input name="text36" type="text" id="36" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text37" type="text" id="37" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text38" type="text" id="38" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text39" type="text" id="39" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text40" type="text" id="40" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text41" type="text" id="41" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text42" type="text" id="42" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text43" type="text" id="43" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text44" type="text" id="44" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text45" type="text" id="45" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
</table>
<p>二等獎(15名)</p>
<table width="951" height="88" border="1">
<tr>
<td><input name="text21" type="text" id="21" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text22" type="text" id="22" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text23" type="text" id="23" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text24" type="text" id="24" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text25" type="text" id="25" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text26" type="text" id="26" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text27" type="text" id="27" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text28" type="text" id="28" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text29" type="text" id="29" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text30" type="text" id="30" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text31" type="text" id="31" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text32" type="text" id="32" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text33" type="text" id="33" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text34" type="text" id="34" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text35" type="text" id="35" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
</table>
<p>三等獎(20名)</p>
<table width="961" height="102" border="1">
<tr>
<td><input name="text1" type="text" id="1" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text2" type="text" id="2" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text3" type="text" id="3" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text4" type="text" id="4" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text5" type="text" id="5" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text6" type="text" id="6" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text7" type="text" id="7" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text8" type="text" id="8" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text9" type="text" id="9" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text10" type="text" id="10" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text11" type="text" id="11" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text12" type="text" id="12" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text13" type="text" id="13" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text14" type="text" id="14" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text15" type="text" id="15" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
<tr>
<td><input name="text16" type="text" id="16" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="28" readonly/></td>
<td><input name="text17" type="text" id="17" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text18" type="text" id="18" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text19" type="text" id="19" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
<td><input name="text20" type="text" id="20" style="height:30px;width:190px;border:1px solid red;font-size:25;" size="20" readonly/></td>
</tr>
</table>
<p> </p>
<p> </p>
<p> </p>
</div>
</div>
<center>
</body>
</html>