<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title>抽奖</title><style type="text/css">* {margin: 0;padding: 0;}.container {width: 800px;height: 800px;border: 1px dashed red;position: absolute;left: 50%;margin-left: -400px;text-align: center;line-height: 100px;}.container .box, .box2 {width: 300px;height: 300px;background: red;border-radius: 50%;margin: auto;margin-top: 50px;text-align: center;line-height: 300px;}.box2 {background: deepskyblue;}#show {font-size: 30px;color: white;font-weight: bold;}#start {width: 300px;height: 50px;background: palevioletred;}</style></head><body><div class="container"><div class="box" id="box"><span id="show">奖品</span></div><button id="start" onclick="start()">开始抽奖</button></div><script type="text/javascript">var flag = false;var goods = ["香蕉", "地狱火", "八宝粥", "宝马五元代金券", "联想电脑", "iPhoneX", "1QB", "黄钻",'练习册','谢谢惠顾'];var show = document.getElementById("show");var _start = document.getElementById("start");var _box = document.getElementById("box")var timer;function start() {if (!flag) {flag = true;_start.innerHTML = "停止抽奖"timer = setInterval(function() {var index = Math.floor(Math.random()*goods.length);var good = goods[index]show.innerText = good;_box.className = "box2";}, 10)} else {flag = false;_start.innerHTML = "开始抽奖";clearInterval(timer);
// _box["className"] = "box";_box.setAttribute("class", "box");} } </script></body>
</html>可以根据自己的喜好设计抽奖内容，或者修改颜色。
![[BJDCTF2020]EzPHP1](https://i-blog.csdnimg.cn/direct/0a1bd6a1b294492892d85228caa341b6.png)
