C#里操作时间的例子!

namespace Wrox.SampleCode.CSharpPreview.ChBaseClasses

{

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.WinForms;

using System.Data;

public class FormDisplayDateTimes : System.WinForms.Form

{

... as before

///

/// Summary description for FormDisplayDateTimes.

/// public FormDisplayDateTimes()

{

//

// Required for Win Form Designer support

//

InitializeComponent();

//

// TODO: Add any constructor code after InitializeComponent call

// DateTime dtCurrTime = DateTime.Now;

AddItem("Current Time is " + dtCurrTime.ToString());

AddItem("Year is " + dtCurrTime.Year.ToString());

AddItem("Month is " + dtCurrTime.Month.ToString());

AddItem("Day of month is " + dtCurrTime.Day.ToString());

AddItem("Day of week is " + dtCurrTime.DayOfWeek.ToString());

AddItem("Hour is " + dtCurrTime.Hour.ToString());

AddItem("Minute is " + dtCurrTime.Minute.ToString());

AddItem("Second is " + dtCurrTime.Second.ToString());

AddItem("Millisecond is " + dtCurrTime.Millisecond.ToString());

AddItem("ShortDateString is " + dtCurrTime.ToShortDateString());

AddItem("LongDateString is " + dtCurrTime.ToLongDateString());

AddItem("ShortTimeString is " + dtCurrTime.ToShortTimeString());

AddItem("LongTimeString is " + dtCurrTime.ToLongTimeString());

}

public class FormTimeSpans : System.WinForms.Form

{

... as before

public FormTimeSpans()

{

//

// Required for Win Form Designer support

//

InitializeComponent();

//

// TODO: Add any constructor code after InitializeComponent call

//

// constructor: TimeSpan(days, hours, minutes, seconds)

TimeSpan Span = new TimeSpan(4,2,15,0);

// initialize date to 1 Jan 2000, 12 pm

// constructor: DateTime(year,month,day,hours,minutes,seconds,

// milliseconds)

DateTime dtOld = new DateTime(2000,1,1,12,0,0,0);

DateTime dtNew = dtOld + Span;

AddItem("Original date was " + dtOld.ToLongDateString() +

" " + dtOld.ToShortTimeString());

AddItem("Adding time span of " + Span.ToString());

AddItem("Result is " + dtNew.ToLongDateString() + " " +

dtNew.ToShortTimeString());

AddItem("");

AddItem("Time span broken down is:");

AddItem("Days: " + Span.Days.ToString());

AddItem("Hours: " + Span.Hours.ToString());

AddItem("Minutes: " + Span.Minutes.ToString());

AddItem("Seconds: " + Span.Seconds.ToString());

AddItem("Milliseconds: " + Span.Milliseconds.ToString());

AddItem("Ticks: " + Span.Ticks.ToString());

AddItem("");

AddItem("TicksPerSecond: " + TimeSpan.TicksPerSecond.ToString());

AddItem("TicksPerHour: " + TimeSpan.TicksPerHour.ToString());

}