获取当前时间

html 代码

当前时间<span id="clock"></span>

 js  代码

<script>
    function changeClock()
    {
        var d = new Date();
        document.getElementById("clock").innerHTML = d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate() + " " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();
    }
    window.setInterval(changeClock, 1000);
</script>