javascript显示时间，现在时间已经显示出来了 就是不自动刷新 麻烦各位看一下 谢谢啦

Question

系统当前时间

<br> function mytime()<br> {<br> var now=new Date();//创建对象<br> var year=now.getFullYear();//获取年份<br> var month=now.getMonth()+1;//获取月份<br> var date=now.getDate();//获取当天时间<br> var hours=now.getHours();//获取小时数<br> var minutes=now.getMinutes();//获取分钟<br> var seconds=now.getSeconds();//获取秒<br> var day=now.getDay();//获取星期几<br> if(now.getDay()==0)day=&quot;星期天&quot;;<br> if(now.getDay()==1)day=&quot;星期一&quot;;<br> if(now.getDay()==2)day=&quot;星期二&quot;;<br> if(now.getDay()==3)day=&quot;星期三&quot;;<br> if(now.getDay()==4)day=&quot;星期四&quot;;<br> if(now.getDay()==5)day=&quot;星期五&quot;;<br> if(now.getDay()==6)day=&quot;星期六&quot;;<br> var clock=year+&quot;年&quot;+month+&quot;月&quot;+date+&quot;日&nbsp;&nbsp;&quot;+hours+&quot;:&quot;+minutes+&quot;:&quot;+seconds+&quot;&nbsp;&nbsp;&quot;+day;//相加<br> document.write(&quot;当前的系统时间为：&quot;+clock)<br> }<br>

Answer 1

系统当前时间

<br> function mytime()<br> {<br> var now=new Date();//创建对象<br> var year=now.getFullYear();//获取年份<br> var month=now.getMonth()+1;//获取月份<br> var date=now.getDate();//获取当天时间<br> var hours=now.getHours();//获取小时数<br> var minutes=now.getMinutes();//获取分钟<br> var seconds=now.getSeconds();//获取秒<br> var day=now.getDay();//获取星期几<br> if(now.getDay()==0)day=&quot;星期天&quot;;<br> if(now.getDay()==1)day=&quot;星期一&quot;;<br> if(now.getDay()==2)day=&quot;星期二&quot;;<br> if(now.getDay()==3)day=&quot;星期三&quot;;<br> if(now.getDay()==4)day=&quot;星期四&quot;;<br> if(now.getDay()==5)day=&quot;星期五&quot;;<br> if(now.getDay()==6)day=&quot;星期六&quot;;<br> var clock=year+&quot;年&quot;+month+&quot;月&quot;+date+&quot;日&nbsp;&nbsp;&quot;+hours+&quot;:&quot;+minutes+&quot;:&quot;+seconds+&quot;&nbsp;&nbsp;&quot;+day;//相加<br> document.write(&quot;当前的系统时间为：&quot;+clock)<br> }<br>