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Date对象

设置日期的几种格式:

new Date("May 25,2016");

new Date("2016/9/10,12:20:33");

new Date(2016,9,10);

当前系统时间:

<!DOCTYPE html><html lang="en"><head>	<meta charset="UTF-8">	<title>当前系统时间</title></head><body>	<div>当前时间:<span id="show"></span></div>	<script>		setInterval(function() {			var date = new Date();			var show = document.getElementById(‘show‘);			var week = [‘星期日‘,‘星期一‘,‘星期二‘,‘星期三‘,‘星期四‘,‘星期五‘,‘星期六‘];			//判断数字,数字小于10显示两位数字效果			function checkTime(i) {				if (i < 10) {					i = ‘0‘ + i;				}				return i;			}			for (var i = 0; i < week.length; i++) {				if (date.getDay() == i) {					show.innerHTML = week[i] + date.getFullYear() + ‘年‘ +  checkTime((date.getMonth() + 1)) + ‘月‘ +  checkTime(date.getDate()) + ‘日‘ + checkTime(date.getHours()) + ‘时‘ + checkTime(date.getMinutes()) + ‘分‘ + checkTime(date.getSeconds()) + ‘秒‘ + date.getMilliseconds() + ‘毫秒‘;				}			}		}, 1);	</script></body></html>

  

Date对象