<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>在线抽奖 随机选取 自动挑选</title>
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<style>
body {
background-color: aliceblue;
}
.wrapDiv {
width: 80%;
max-width: 1200px;
margin: 0 auto;
text-align: center;
position: absolute;
top: 80px;
left: 0;
right: 0;
}
.leftBox {
float: left;
width: 800px;
height: 240px;
margin: 0 auto;
margin-top: 0px;
clear: both;
}
#span {
float: right;
top: 30px;
right: 185px;
}
#btn {
float: left;
width: 200px;
height: 100px;
text-align: center;
line-height: 100px;
margin-left: 500px;
margin-top: 200px;
background: linear-gradient(to right, #ff0000, #ff9900, #ffff00, #33cc33, #3399ff); /* 设置背景渐变 */
color: white;
font-size: 18px;
font-weight: bold;
border: none;
cursor: pointer;
}
.nameBox {
width: 200px;
height: 50px;
float: left;
margin-left: 10px;
margin-top: 10px;
text-align: center;
line-height: 50px;
}
.nameBox:nth-child(1) {
background-color: #f44336; /* 红色 */
}
.nameBox:nth-child(2) {
background-color: #9c27b0; /* 紫色 */
}
.nameBox:nth-child(3) {
background-color: #2196f3; /* 蓝色 */
}
.nameBox:nth-child(4) {
background-color: #4caf50; /* 绿色 */
}
.nameBox:nth-child(5) {
background-color: #ff9800; /* 橙色 */
}
.nameBox:nth-child(6) {
background-color: #ffeb3b; /* 黄色 */
}
.nameBox:nth-child(7) {
background-color: #00bcd4; /* 青色 */
}
.nameBox:nth-child(8) {
background-color: #e91e63; /* 桃红色 */
}
.nameBox:nth-child(9) {
background-color: #8bc34a; /* 浅绿色 */
}
.nameBox:nth-child(10) {
background-color: #607d8b; /* 钢蓝色 */
}
.nameBox:nth-child(11) {
background-color: #673ab7; /* 深紫色 */
}
.nameBox:nth-child(12) {
background-color: #ff5722; /* 橙红色 */
}
.nameBox:nth-child(13) {
background-color: #3f51b5; /* 中蓝色 */
}
.nameBox:nth-child(14) {
background-color: #795548; /* 暗褐色 */
}
.nameBox:nth-child(15) {
background-color: #009688; /* 深绿色 */
}
.nameBox:nth-child(16) {
background-color: #ff4081; /* 粉红色 */
}
.nameBox:nth-child(17) {
background-color: #9e9e9e; /* 灰色 */
}
.nameBox:nth-child(18) {
background-color: #ffc107; /* 金黄色 */
}
.nameBox:nth-child(19) {
background-color: #cddc39; /* 青绿色 */
}
.nameBox:nth-child(20) {
background-color: #03a9f4; /* 亮蓝色 */
}
.nameBox:nth-child(21) {
background-color: #ff1744; /* 鲜红色 */
}
/* 可以继续定义更多的 .nameBox:nth-child(n) 规则来设置不同的颜色 */
.selectedName {
float: right;
width: 300px;
background: #666;
margin-top: 10px;
margin-left: 30px;
background: #ffffff;
overflow-y: scroll; /* 添加垂直滚动条 */
}
h1 {
text-align: center;
}
</style>
</head>
<body>
<h1>随机抽奖系统</h1>
<span id="span"></span>
<div class="wrapDiv">
<div id="leftBox" class="leftBox"></div>
<div id="selectedName" class="selectedName">
<h1>礼物</h1>
<!-- 中奖者名单内容将动态添加 -->
</div>
<input type="button" id="btn" value="点这里开启幸运之旅">
</div>
<script>
// 模拟后台数据
var arr = ["01", "02", "03", "04", "05", "06", "07", "08", "09", "10",
"11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21",
];
var orgArrCount = arr.length;
var currentSelectNum = 0;
initForm();
// 初始化表单
function initForm() {
// 动态设置选择人的高度
var selectedNameHeight = orgArrCount / 3 * 40 + 300;
$("#selectedName").css("height", selectedNameHeight + "px");
// 动态创建图层
dynamicCreateBox();
}
// 动态创建层
function dynamicCreateBox() {
for (var i = 0; i < arr.length; i++) {
var div = document.createElement("div");
div.innerText = arr[i];
div.className = "nameBox";
$("#leftBox").append(div);
};
}
// 清空小方格颜色
function clearBoxColor() {
$("#leftBox").children("div").each(function() {
$(this).css("background-color", "");
});
}
// 设置选中小方格颜色
function setBoxColor() {
$("#leftBox").children("div").each(function() {
var thisText = ($(this).text());
var selectedName = arr[currentSelectNum];
if (thisText == selectedName) {
$(this).css("background-color", "red");
}
});
}
function appendSelectedName() {
var div = document.createElement("div");
div.innerText = arr[currentSelectNum];
div.className = "nameBox";
$("#selectedName").append(div);
}
$('#btn').click(function() {
var curentCount = arr.length;
if (curentCount < 1) {
alert("已经抽完这个奖池了");
// 清空所有层的颜色
clearBoxColor();
return;
}
// 监视按钮的状态
if (this.value === "点这里开启幸运之旅") {
// 定时针
timeId = setInterval(function() {
// 清空所有层的颜色
clearBoxColor();
//随机生成一个数
var num = Math.floor(Math.random() * curentCount);
currentSelectNum = num;
// 设置选中小方格颜色
setBoxColor();
}, 10);
this.value = "停止";
} else {
// 清除计时器
clearInterval(timeId);
// 添加选中人
appendSelectedName();
// 移除
arr.splice(currentSelectNum, 1);
this.value = "点这里开启幸运之旅";
}
});
// 获取时间的函数
getTime();
setInterval(getTime, 10)
function getTime() {
var day = new Date();
var year = day.getFullYear(); //年
var month = day.getMonth() + 1; //月
var dat = day.getDate(); //日
var hour = day.getHours(); //小时
var minitue = day.getMinutes(); //分钟
var second = day.getSeconds(); //秒
month = month < 10 ? "0" + month : month;
dat = dat < 10 ? "0" + dat : dat;
hour = hour < 10 ? "0" + hour : hour;
minitue = minitue < 10 ? "0" + minitue : minitue;
second = second < 10 ? "0" + second : second;
$("#span").text(year + "-" + month + "-" + dat + " " + hour + ":" + minitue + ":" + second);
}
</script>
</body>
</html>