注册按钮倒计时(setinterval)

版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。
本文链接: https://blog.csdn.net/qq_32077521/article/details/97615804
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
	<meta charset="utf-8" />
</head>
<body>
    <input type="submit" id="submit1" value="请仔细阅读协议(5)"/>
    <script type="text/javascript">
        window.onload = function () {
            var btn = document.getElementById('submit1');
            btn.disabled = true;
            var sec = 4;
            var intervalID = setInterval(function () {
                if (sec >0) {
                    btn.value = '请仔细阅读协议(' + sec.toString() + ')';
                    sec--;
                }
                else {
                    btn.value = '同意';
                    clearInterval(intervalID);
                    btn.disabled = false;
                }
            }, 1000);
        };
    </script>
</body>
</html>

猜你喜欢

转载自blog.csdn.net/qq_32077521/article/details/97615804