DateDiff in c#(转载:DateDiff 方法在C#中的实现）

编程小号 • 2023-08-18 09:06 • 未分类

public

enum
DateInterval
{

Second, Minute, Hour, Day, Week, Month, Quarter, Year
}

public

sealed

class
DateTimeManger
{

private
DateTimeManger()
    {}
//
end of default constructor


public

static

long
DateDiff(DateInterval Interval, System.DateTime StartDate,    System.DateTime EndDate )
    {


long
lngDateDiffValue
=

0
;
        System.TimeSpan TS
=

new
System.TimeSpan(EndDate.Ticks
–
StartDate.Ticks);

switch
(Interval)
        {


case
DateInterval.Second:
            lngDateDiffValue
=
(
long
) TS.TotalSeconds;

break
;

case
DateInterval.Minute:
            lngDateDiffValue
=
(
long
) TS.TotalMinutes;

break
;

case
DateInterval.Hour:
            lngDateDiffValue
=
(
long
)TS.TotalHours;

break
;

case
DateInterval.Day:
            lngDateDiffValue
=
(
long
) TS.Days;

break
;

case
DateInterval.Week:
            lngDateDiffValue
=
(
long
)( TS.Days
/

7
);

break
;

case
DateInterval.Month:
            lngDateDiffValue
=
(
long
)( TS.Days
/

30
);

break
;

case
DateInterval.Quarter:
            lngDateDiffValue
=
(
long
)( (TS.Days
/

30
)
/

3
);

break
;

case
DateInterval.Year:
            lngDateDiffValue
=
(
long
)( TS.Days
/

365
);

break
;
        }

return
(lngDateDiffValue);
    }
//
end of DateDiff

}
//
end of class

Samples:

public

class
DateDiffCS
{


public

static

void
Main (
string
[] CmdLineArgs)
    {

        System.DateTime date1
=
System.DateTime.Now;
        System.DateTime date2
=
System.DateTime.Now.AddYears(
2
);

        System.Console.Out.WriteLine(
“
Days :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Day,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Hours :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Hour,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Minutes :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Minute,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Month :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Month,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Quarter :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Quarter,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Seconds :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Second,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Week :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Week,date1,date2).ToString());
        System.Console.Out.WriteLine(
“
Year :
“

+
DateTimeManger.DateDiff
        (DateTimeManger.DateInterval.Year,date1,date2).ToString());

System.Console.In.ReadLine();

}

}
//
end of the class

From:

HP.Mahesh.UtilityManager.Libraries.DateTimeUtility

转载于:https://www.cnblogs.com/hardrock/archive/2006/05/17/402654.html

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DateDiff in c#(转载:DateDiff 方法在C#中的实现）

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