介绍一下js中Date对象的使用

dateObj = new Date()

dateObj = new Date(dateValue)

dateObj = new Date(year,month,date[,hours[,minutes[,seconds[,ms]]]]);

以下有一个小样例

	<script type="text/javascript">

		function setTime(){

			//获得如今的时间

			var now = new Date();

	  		var year = now.getFullYear();

	  		var month = now.getMonth();

	  		month ++;

	  		var date = now.getDate();

	  		var day = now.getDay();

	  		var hours = now.getHours();

	  		var minute = now.getMinutes();

	  		var second = now.getSeconds();

			var arr_week = new Array("星期一","星期二","星期三","星期四","星期五","星期六","星期日");

			var week = arr_week[day];

	  		var time = year + "年" + month + "月" + date + "日 " + week + " " + hours + ":" +minute + ":" + second;

			var clock = document.getElementById("clock");

			clock.innerHTML ="当前时间: "+time;

		}

		//下载完毕后,每隔一秒更新一次时间

		window.onload = function(){

			window.setInterval("setTime()", 1000);

		}

  	</script>

显示效果: