获取短信按钮倒计时60秒

来源:互联网 发布:arp欺骗工具 windows 编辑:程序博客网 时间:2024/06/05 09:13
<!DOCTYPE html>
<html lang="zh">


<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
<script src="src/jquery.min.js"></script>
</head>


<body>
<input type="button" id="btn" value="免费获取验证码" onclick="settime(this)" />
<script type="text/javascript">
var countdown = 5;
function settime(val) {
if(countdown == 0) {
val.removeAttribute("disabled");
val.value = "免费获取验证码";
countdown = 5;
return;
} else {
val.setAttribute("disabled", true);
val.value = "重新发送(" + countdown + ")";
countdown--;
}
setTimeout(function() {
settime(val)
}, 1000)
}
</script>
</body>


</html>
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