<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Date对象</title>
</head>
<body>
<script>
//构建对象
var date = new Date()
//获取年份
var fullyear = date.getFullYear();
document.write(fullyear)
document.write("<br/>")
//获取月份(取值范围为0~11)
var month = date.getMonth();
month = month + 1
document.write(month)
document.write("<br/>")
//取这个月的几号
var dayofmonth = date.getDate()
/* getDay();
getHours();
getSeconds();
getMilliseconds();*/
document.write(dayofmonth)
</script>
</body></html>
Date对象
原文：https://www.cnblogs.com/001yjk/p/10747355.html
