请问一下各位高手,在网上找了个JS抽奖程序,随机出现结果,怎么让它实现结果不重复了,小弟先谢了。
请好心人帮帮小弟啊。
代码如下:
<html>
<title>随机抽奖程序</title>
<head><meta http-equiv=Content-Type content="text/html; charset=gb2312">
</head>
<body>
<script type="text/javascript"><!--
var alldata = "1,3,5,2,6,7,8,9,10,4" //抽奖数据,以逗号分隔
var alldataarr = alldata.split(",")
var num = alldataarr.length-1
var timer
function change(){ document.getElementById("oknum").innerHTML = alldataarr[GetRnd(0,num)];
}
function start(){
clearInterval(timer);
timer = setInterval('change()',10); //随机数据变换速度,越小变换的越快
}
function ok(){
clearInterval(timer);
document.getElementById("showresult").value=document.getElementById("oknum").innerText;
}
function GetRnd(min,max){
return parseInt(Math.random()*(max-min+1));
}
// --></script>
<div id="oknum" name="oknum" >请单击开始抽奖</div>
<button onClick="start()" accesskey="s">开始抽奖(<U>S</U>)</button>
<button onClick="ok()" accesskey="o">停止(<U>O</U>)</button>
<input type="text" id="showresult" value="">
</body>
</html>
请好心人帮帮小弟啊。
代码如下:
<html>
<title>随机抽奖程序</title>
<head><meta http-equiv=Content-Type content="text/html; charset=gb2312">
</head>
<body>
<script type="text/javascript"><!--
var alldata = "1,3,5,2,6,7,8,9,10,4" //抽奖数据,以逗号分隔
var alldataarr = alldata.split(",")
var num = alldataarr.length-1
var timer
function change(){ document.getElementById("oknum").innerHTML = alldataarr[GetRnd(0,num)];
}
function start(){
clearInterval(timer);
timer = setInterval('change()',10); //随机数据变换速度,越小变换的越快
}
function ok(){
clearInterval(timer);
document.getElementById("showresult").value=document.getElementById("oknum").innerText;
}
function GetRnd(min,max){
return parseInt(Math.random()*(max-min+1));
}
// --></script>
<div id="oknum" name="oknum" >请单击开始抽奖</div>
<button onClick="start()" accesskey="s">开始抽奖(<U>S</U>)</button>
<button onClick="ok()" accesskey="o">停止(<U>O</U>)</button>
<input type="text" id="showresult" value="">
</body>
</html>
<script type="text/javascript"><!--
var alldata = "1,3,5,2,6,7,8,9,10,4" //抽奖数据,以逗号分隔
var alldataarr = alldata.split(",")
var num = alldataarr.length-1
var timer
function change(){ document.getElementById("oknum").innerHTML = alldataarr[GetRnd(0,num)];
}
function start(){
clearInterval(timer);
timer = setInterval('change()',10); //随机数据变换速度,越小变换的越快
}
function ok(){
clearInterval(timer);
var val = document.getElementById("oknum").innerText;
document.getElementById("showresult").value=val;
alldata = alldata.replace(new RegExp(val+',\?'),'');
alldataarr = alldata.split(",");
num = alldataarr.length-1 ;
}
function GetRnd(min,max){
return parseInt(Math.random()*(max-min+1));
}
// --></script>
<div id="oknum" name="oknum" >请单击开始抽奖</div>
<button onClick="start()" accesskey="s">开始抽奖(<U>S</U>)</button>
<button onClick="ok()" accesskey="o">停止(<U>O</U>)</button>
<input type="text" id="showresult" value="">
</body>
就放入数组即可。
判断重复数据参考:
http://blog.csdn.net/IBM_hoojo/archive/2010/06/17/5675195.aspx
<script type="text/javascript">
document.execCommand("BackgroundImageCache", false, true);
</script>
<![endif]-->