js数字时钟

<script type="text/javascript">

	//获取时间
	function getTime(){
		//获取年月日时分秒
		var myDate = new Date();
		var y = myDate.getFullYear();    				//获取完整的年份(4位,1970-????)
		var m = check(myDate.getMonth()+1);      	 	//获取当前月份(0-11,0代表1月)
		var d = check(myDate.getDate());        		//获取当前日(1-31)
		var day = myDate.getDay();         				//获取当前星期X(0-6,0代表星期天)
		var w = "星期" + "日一二三四五六".charAt(day);
		var h = check(myDate.getHours());       		//获取当前小时数(0-23)
		var i = check(myDate.getMinutes());     		//获取当前分钟数(0-59)
		var s = check(myDate.getSeconds());     		//获取当前秒数(0-59)
		var ms = check(myDate.getMilliseconds());    	//获取当前毫秒数(0-999)

		document.getElementById("date").innerHTML=y+"年"+m+"月"+d+"日"+" "+w;
		document.getElementById("time").innerHTML=h+":"+i+":"+s+":"+ms;
		setTimeout(getTime,1); 							//1毫秒执行一次
	}

	//补0函数
	function check(key){
		if(key<10)
			key="0"+key;
		return key;
	}

	getTime();
	</script>

效果图：