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js手机验证码倒计时

super
2019-03-25 11:37
views 1003


var countdown = 60;
function settime(obj)
{
    if (countdown == 0)
    {
        $(obj).attr("disabled", false);
        $(obj).text("获取验证码");
        countdown = 60;
        return false;
    }
    else
    {
        $(obj).attr("disabled", true);
        $(obj).text("重新发送(" + countdown + ")");
        countdown--;
    }
    setTimeout(function()
    {
        settime(obj);
    }, 1000);
}

obj是按钮对象





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