支付倒计时
页面确认支付后，会跳转到支付成功页面
1.支付页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
div {
width: 200px;
height: 280px;
background-color: #eee;
margin:0 auto;
padding:20px;
}
button {
margin: 30px 25px;
}
</style>
</head>
<body>
<div>
<p>商品：Web前端课程</p>
<p>原价：1980元</p>
<p>现价：1.98元</p>
<p>内容：HTML、CSS、JS</p>
<p>地址：北京市朝阳区</p>
<p>
<button>取消</button>
<button>支付</button>
</p>
</div>
<script type="text/javascript">
// 逻辑：1.点击支付，出现确认框；2.加载支付成功页面时，触发定时器10s
document.getElementsByTagName('button')[1].onclick = function() {
let res = window.confirm('您确定要支付吗');
if(res){
// 跳转到支付成功页面
location.href = './3.succ.html'
}
}
</script>
</body>
</html>
2.支付成功页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
div{
margin:0 auto;
width: 500px;
}
#jumpTo{
color: red;
font-size: 30px;
}
</style>
</head>
<body>
<div>
<h2>恭喜您，支付成功</h2>
<span id="jumpTo">10</span>秒后自动返回首页
<p><button>立即返回</button></p>
</div>
<script type="text/javascript">
window.onload = function() {
let timer = 10;
setInterval(()=>{
timer--;
document.getElementById('jumpTo').innerText = timer;
if(timer==0) {
location.href = 'https://jinwen01.ke.qq.com'
}
},1000)
}
document.getElementsByTagName('button')[0].onclick = function(){
location.href = 'https://jinwen01.ke.qq.com';
}
</script>
</body>
</html>
