Question

我的javascript受损 - 我需要构建倒计时脚本，倒计时45分钟，并将剩余时间追加到标题栏或用户浏览器，以及时间到时将运行类似警报消息的功能

我希望我有代码可以开始。

Answer 1

在这里，这应该适合你。 (Demo)

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <script>
    var interval;
    var minutes = 1;
    var seconds = 5;
    window.onload = function() {
        countdown('countdown');
    }

    function countdown(element) {
        interval = setInterval(function() {
            var el = document.getElementById(element);
            if(seconds == 0) {
                if(minutes == 0) {
                    el.innerHTML = "countdown's over!";  
                    alert("countdown's over!");
                    clearInterval(interval);
                    return;
                } else {
                    minutes--;
                    seconds = 60;
                }
            }
            if(minutes > 0) {
                var minute_text = minutes + (minutes > 1 ? ' minutes' : ' minute');
            } else {
                var minute_text = '';
            }
            var second_text = seconds > 1 ? 'seconds' : 'second';
            el.innerHTML = minute_text + ' ' + seconds + ' ' + second_text + ' remaining';
            document.title = minute_text + ' ' + seconds + ' ' + second_text + ' remaining';
            seconds--;
        }, 1000);
    }
    </script>
</head>
<body>
<div id='countdown'></div>
</body>
</html>

倒计时器在js

1 个答案: