JS实现随机抽选获奖者
weixin20151212 人气:0本文实例为大家分享了JS实现随机抽选获奖者的具体代码，供大家参考，具体内容如下
<!--2018年9月12日——————幸运抽奖-->
<!DOCTYPE html>
<html>
<head>
<title></title>
<style type="text/css">
.select{
background: #3399FF;
color:white;
}
.button{
border-radius: 10px;
height: 100px;
font-size: 25px;
width: 100px;
background-color: #3399FF;
color: white;
}
.title{
font-family: cursive;
}
</style>
</head>
<body>
<div style="text-align:-webkit-center;font-size: 57px;color: #3399FF;" class="title">抽奖人员名单</div>
<table style="border:1px solid #ccc; width:800px; height:400px; text-align: center; margin: auto;" background="C:\Users\Administrator\Desktop\%application%\360壁纸\50736.jpg" >
<tr>
<td id="student_1">谢林峰</td>
<td id="student_2">卿明珠</td>
<td id="student_3">袁龙</td>
<td id="student_4">周志明</td>
<td id="student_5">秦玉萍</td>
<td id="student_6">金晖</td>
<td id="student_7">陶灵峰</td>
<td id="student_8">廖杨明</td>
</tr>
<tr>
<td id="student_9">胡雄</td>
<td id="student_10">胡俊凡</td>
<td id="student_11">李欣</td>
<td id="student_12">易君</td>
<td id="student_13">湛威</td>
<td id="student_14">古海平</td>
<td id="student_15">潘杰杰</td>
<td id="student_16">伍光政</td>
</tr>
<tr>
<td id="student_17">谭谈</td>
<td id="student_18">周强</td>
<td id="student_19">陈辉</td>
<td id="student_20">李庚云</td>
<td id="student_21">吴玉风</td>
<td id="student_22">伍鹏</td>
<td id="student_23">蔡东龙</td>
<td id="student_24">胡俊飞</td>
</tr>
<tr>
<td id="student_25">文捷频</td>
<td id="student_26">唐明</td>
<td id="student_27">吴鑫培</td>
<td id="student_28">唐翌</td>
<td id="student_29">邹家欢</td>
<td id="student_30">刘朋</td>
<td id="student_31">周文才</td>
<td id="student_32">阳小松</td>
</tr>
<tr>
<td id="student_33">张明博</td>
<td id="student_34">严伟</td>
<td id="student_"></td>
<td id="student_"></td>
<td id="student_"></td>
<td id="student_"></td>
<td id="student_"></td>
<td id="student_"></td>
</tr>
</table>
<sapn style="margin-left: 430px;">抽奖倒计时：</sapn><span id="Ten" style="color:red;font-size: 70px;">10</span>
<span style="color:red">s</span>
<span style="margin-left: 220px;">幸运星:</span>
<span style="font-size: 70px; color: red;" id="Lucky" class="title"></span>
<div style="text-align: -webkit-center;"><button onclick="go()" class="button">走你</button></div>
</body>
<script type="text/javascript">
//鼠标单击事件
var stuInterval;
var flag = false;
//点击开始事件
function go(){
if(flag != false){
return;
}
flag = true;
setTimeout(function(){
flag = false;
},15000);
time();//调用时间倒计时方法
//循环选取学生
stuInterval=setInterval(function(){
var ran=Math.floor(Math.random()*34+1);
var id="student_"+ran;
//获取到文本值并且赋属性
var td=document.getElementById(id);
//删除之前的样式
var stuO = document.getElementsByClassName("select");
if(stuO.length != 0){
stuO[0].setAttribute("class","");
}if(stuO){
td.setAttribute("class","select");
var stuname = td.innerText;
document.getElementById("Lucky").innerText = stuname;
}
},200)
}
//时间倒计时
function time(){
var t=10;
var int=setInterval(function(){
--t;
var tspan=document.getElementById("Ten");
tspan.innerText=t;
if(t==0){
clearInterval(int);
clearInterval(stuInterval);//延时特殊情况
}
},1000);
}
</script>
</html>
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