JQuery实现倒计时按钮具体方法

时间:2020-05-13 人气:0

<head>
    <title>test count down button</title>
    <script src="http://ajax.aspnetcdn.com/ajax/jquery/jquery-1.5.1.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {
            $('#btn').click(function () {
                var count = 3;
                var countdown = setInterval(CountDown, 1000);

                function CountDown() {
                    $("#btn").attr("disabled", true);
                    $("#btn").val("Please wait " + count + " seconds!");
                    if (count == 0) {
                        $("#btn").val("Submit").removeAttr("disabled");
                        clearInterval(countdown);
                    }
                    count--;
                }
            })

});
</script>
</head>
<body>
<input type="button" id="btn" value="Submit" />
</body>

有兴趣您可以自己实现一下。

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