js實現頁面日期時間的動態顯示，精確到秒

直接寫代碼

<script type="text/javascript">
	window.onload=showtime();
	 	function gettime(){
	          var date = new Date();
	          var weekDay = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
	          var year = date.getFullYear();
	          var month = date.getMonth()+1;
	          var day = date.getDate();
	          var hours=date.getHours();
	          var minutes=date.getMinutes();
	          var seconds=date.getSeconds();
	          var week = weekDay[date.getDay()];
	          $("#day").html(year+"年"+month+"月"+day+"日&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp"+week);
			  $("#time").html(hours+":"+minutes+":"+seconds);
		 } 
		 
		 function showtime(){
		 	setInterval(function() {   
				gettime();
				}, 1000);
		 }
 </script>