【js基础】时间和日期相关操作函数

<script type="text/javascript">//获取年月日时分秒var myDate = new Date();myDate.getYear();        //获取当前年份(2位)myDate.getFullYear();    //获取完整的年份(4位,1970-????)myDate.getMonth();       //获取当前月份(0-11,0代表1月)myDate.getDate();        //获取当前日(1-31)myDate.getDay();         //获取当前星期X(0-6,0代表星期天)myDate.getTime();        //获取当前时间(从1970.1.1开始的毫秒数)myDate.getHours();       //获取当前小时数(0-23)myDate.getMinutes();     //获取当前分钟数(0-59)myDate.getSeconds();     //获取当前秒数(0-59)myDate.getMilliseconds();    //获取当前毫秒数(0-999)var mytime=myDate.toLocaleTimeString();     //获取当前时间document.write(myDate.toLocaleString());        //获取日期与时间//获取星期//方法一var a = new Array("日", "一", "二", "三", "四", "五", "六");  var week = new Date().getDay();  var str = "今天是星期"+ a[week];  alert(str); //方法二var str = "今天是星期" + "日一二三四五六".charAt(new Date().getDay());alert(str);  //判断闰年function isLeapYear(year) {  return (year % 4 == 0) && (year % 100 != 0 || year % 400 == 0);  }</script>