在Html界面上显示当前時間 , 使用js获取.

<span id="timenow" style="float:left;"></span>

  <script>

    setInterval(
    function getNowTime() {
        var nowTime = new Date();
        var nowYear = nowTime.getFullYear().toString();     //获取当前年份
        var nowMonth = (nowTime.getMonth() + 1).toString(); //获取当前月份
        var nowDay = nowTime.getDate().toString();          //获取当前日期
        var nowHours = nowTime.getHours().toString();       //获取当前小时数
        var nowMin = nowTime.getMinutes().toString();       //获取当前分钟数
        var nowSecond = nowTime.getSeconds().toString();    //获取当前秒数
        var weeks = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
        var week = weeks[nowTime.getDay()];
        if (nowYear < 10) { nowYear = "0" + nowYear };
        if (nowMonth < 10) { nowMonth = "0" + nowMonth };
        if (nowDay < 10) { nowDay = "0" + nowDay };
        if (nowHours < 10) { nowHours = "0" + nowHours };
        if (nowMin < 10) { nowMin = "0" + nowMin };
        if (nowSecond < 10) { nowSecond = "0" + nowSecond };
        var time = nowYear + "年" + nowMonth + "月" + nowDay + "日 " + week + " " + nowHours + ":" + nowMin + ":" + nowSecond;
        $("#timenow").text("当前时间：" + time);
    }, 1000);

</script>