例如下面代碼：<script type="text/javascript">????? window.onload= function w(){????????? function e(i){????????????? if(i<10){????????????????? i="0"+i;????????????? }else{????????????????? return i;}????????????? }???????? ?????????? var time=new Date();????????? var year=time.getFullYear();????????? var month=time.getMonth()+1;????????? var day=time.getDate();????????? var week=time.getDay()????????? var weekday=new Array();??????????? weekday[0]="星期日";??????????? weekday[1]="星期一";??????????? weekday[2]="星期二";??????????? weekday[3]="星期三";??????????? weekday[4]="星期四";??????????? weekday[5]="星期五";??????????? weekday[6]="星期六";????????? var h=time.getHours();????????? var m=time.getMinutes();??????? ?????????? var s=time.getSeconds();?????????? m=e(m);?????????? s=e(s);??????? document.getElementById("first1").innerHTML=year+"年"+month+"月"+day+"日"+weekday[week]+h+":"+m+":"+s;?????????? setTimeout(w,500)??????? }??????? ???????? </script>