How to set time in html

htmlHow to set the time: first create a div; then add a class attribute to the div; finally set the time through the "function realSysTime(clock){...}" method.

The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.

HTML sets a current time

setInterval(function(){
        realSysTime(clock),1000
        }); 
//显示当前时间
function realSysTime(clock){
    var now=new Date();            //创建Date对象
    var year=now.getFullYear();    //获取年份
    var month=now.getMonth();    //获取月份
    var date=now.getDate();        //获取日期
    var day=now.getDay();        //获取星期
    var hour=now.getHours();    //获取小时
    var minu=now.getMinutes();    //获取分钟
    var sec=now.getSeconds();    //获取秒钟
    month=month+1;
    var arr_week=new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
    var week=arr_week[day];  //获取中文的星期
    var time=year+"年"+month+"月"+date+"日 "+" "+((hour<10)?(&#39;0&#39;+hour):hour)+":"+((minu<10)?(&#39;0&#39;+minu):minu)+":"+((sec<10)?(&#39;0&#39;+sec):sec);    //组合系统时间
    clock.innerHTML=time;    //显示系统时间
}

 <!-- 当前时间显示 -->
        <div id="clock" class="time" ></div>

[Recommended learning: HTML video tutorial]

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