-- 计算指定日期本周的第一天和最后一天 select day ,dayofweek(day) as dw1 ,date_add( - dayofweek(day)) as Su_s -- 周日_start ,date_add( - dayofweek(day)) as Sa_e -- 周六_end , end as dw2 ,date_add( end) as Mo_s -- 周一_start ,date_add( end) as Su_e -- 周日_end from ( select '2…
NthDayOfWeek 计算并返回指定日期是该月第几周 Unit:DateUtils function NthDayOfWeek(const AValue: TDateTime): Word; Example: Uses SysUtils,DateUtils; Begin Write('Today is the ',NthDayOfWeek(Today),'-th '); Writeln(formatdateTime('dddd',Today),' of the month.');En…
//两个时间相差天数 兼容firefox chrome var days = function(startDate) { var sdate = new Date(startDate.replace(/-/g, "/")); var now = new Date(); var days = now.getTime() - sdate.getTime(); var day = parseInt(days / (1000 * 60 * 60 * 24)); return day; …
//这些天常接触到有关于js操作日期事 就小结了一下,希望对你有帮助 function conversionDate(a,b){ var start =a.split('-'); var end = b.split('-'); //转换为date对象 var strDateS = new Date(start[0], start[1], start[2]); var strDateE = new Date(end[0], end[1], end[2]); var differ=parseInt(…
一:使用DateAdd方法向指定日期添加一段时间间隔,截图 二:代码 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using Microsoft.VisualBasic; na…
1.计算指定时间距今多久 var date1=new Date('2017/02/08 17:00'); //开始时间 var date2=new Date(); //当前时间 var date3=date2.getTime()-date1.getTime() //时间差的毫秒数 //计算出相差天数 var days=Math.floor(date3/(24*3600*1000)) //计算出小时数 var leave1=date3%(24*3600*1000) //计算天数后剩余的毫秒数 va…