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js学习三-日期Date

2016-05-15 17:55 489 查看
Date

date = new Date()

date.getXXX()

date.setXXX()

浏览器会智能计算

new Date(2016,2,0)        2016-2-29

代码:

<span style="font-size:14px;"><!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Date</title>
</head>
<body>
<script type="text/javascript">
var date = new Date();
console.log('date');
console.log(date);
// Sun May 15 2016 15:00:33 GMT+0800 (China Standard Time)
function padding(number) {
// 补零
return number < 10? '0'+number:''+number;
}
function format(date) {
//格式化
return date.getFullYear()+'-'+padding(date.getMonth()+1)+'-'+padding(date.getDate())+' '+padding(date.getHours())+':'+padding(date.getMinutes())+':'+padding(date.getSeconds());
}
function getDays(year, month) {
var date = new Date(year, month, 0);
console.log('date');
console.log(date);
// Mon Feb 29 2016 00:00:00 GMT+0800 (China Standard Time)
return date.getDate();
}
console.log(format(date));
// 2016-05-15 15:14:18

date.setDate(35);
console.log(format(date));
//2016-06-04 15:19:04
date.setHours(100);
console.log(format(date));
// 2016-06-08 04:19:04
console.log(getDays(2016,2)+'天')
//29天
</script>
</body>
</html></span>
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标签:  javascript Date