DayOfWeek returns the day of the week of the specified date as an integer between 1 and 7, where Sunday is the first day of the week and Saturday is the seventh Note: DayOfWeek is not compliant with the ISO 8601 standard, which defines Monday as the first day of the week For an ISO 8601 compliant version, use the DayOfTheWeek function instead 描述: 按照给定的TDateTime类型的参数Date,DayOfWeek 函数得到一周中的第几天,从1到7。 这里 星期日 是一周的第一天,而 星期六 是第七天。 ●functionDaysBetween(const ANow, AThen: TDateTime): Integer; 描述: 根据两个TDateT

daysbetween(开始时间,结束时间)---中间相差多少天 保留整数部分yearsbetween(开始时间,结束时间)---中间相差多少年 保留整数部分

Call DaysBetween to obtain the difference, in days, between two TDateTime valuesDaysBetween counts only whole days that have elapsed Thus, DaysBetween reports the difference between Dec 31, 1999 PM and Jan 1, 2000 PM as 0 because the difference is one minute short of an entire day

delphi怎么得两个日期相差多少天-10-09delphi怎样求出两时间之间相差多少秒2025-05-13

i:=daysbetween(strtodate('2025-05-13'),);i:=daysbetween(,strtodate('2025-05-13'));

rocedure 1Click(Sender: TObject);(FormatDateTime('yyyy-mm-dd',StartOfTheMonth(Now)));(FormatDateTime('yyyy-mm-dd HH-MM-SS',EndOfTheMonth(Now)));//(DateTimeToStr(StartOfTheMonth(Now_delphi 时间函数 MilliSecondsBetween 函数 返回两个指定日期时间值之间相差的毫秒数(整数) MilliSecondSpan 函数 返回两个指定日期时间值 之间相差的毫秒数(小数) MinuteOf 函数 返回指定日期时间值 分钟部分 MinuteOfTheDay 函数 返回指定日期时间值的那天0时0分开始到其指定时间的分钟数 MinuteOfT

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函数声明:Function YearsBetween ( const ANow, AThen : TDateTime) :Integer;Showmessage('几年=' + IntToStr(YearsBetween(Now,Now+560))); //1函数声明:Function YearsSpan( const ANow , AThen : TDateTime) :Double;函数声明:Function StartOfAYear ( const AYear) : TDateTime;函数声明:Fu 函数声明:Function DaysBetween( const ANow, AThen : TDateTime) :Integer;函数声明:Function DaySpan ( const ANow , AThen : TDateTime) :Double;DayOfTheYear(返回指定TDateTime变量为该年的第几天)函数声明:Function DayOfTheYear ( const AValue : TDateTime) :Word;DayOfTheMonth(返

给出两个时间(年、月、日),求相差天数,不用daysbetween()类的函数,用代码实现算法说明:用vc写的,已测试(因为机器没装delphi)。function daysbetween(Aday,AnDay:TDatetime):integer;

const anumberofdays: integer = 1): tdatetime;delphi里有现成的函数可以实现日期加减,是在dateutils单元里的。