C#里操作时间的例子! 

/// <summary>
源代码网推荐/// Summary description for FormDisplayDateTimes.
源代码网推荐/// </summary> public FormDisplayDateTimes()
源代码网推荐{
源代码网推荐//
源代码网推荐// Required for Win Form Designer support
源代码网推荐//

源代码网推荐InitializeComponent();

//
源代码网推荐// TODO: Add any constructor code after InitializeComponent call
源代码网推荐// DateTime dtCurrTime = DateTime.Now;
源代码网推荐AddItem("Current Time is " + dtCurrTime.ToString());
源代码网推荐AddItem("Year is " + dtCurrTime.Year.ToString());
源代码网推荐AddItem("Month is " + dtCurrTime.Month.ToString());
源代码网推荐AddItem("Day of month is " + dtCurrTime.Day.ToString());
源代码网推荐AddItem("Day of week is " + dtCurrTime.DayOfWeek.ToString());
源代码网推荐AddItem("Hour is " + dtCurrTime.Hour.ToString());
源代码网推荐AddItem("Minute is " + dtCurrTime.Minute.ToString());
源代码网推荐AddItem("Second is " + dtCurrTime.Second.ToString());
源代码网推荐AddItem("Millisecond is " + dtCurrTime.Millisecond.ToString());
源代码网推荐AddItem("ShortDateString is " + dtCurrTime.ToShortDateString());
源代码网推荐AddItem("LongDateString is " + dtCurrTime.ToLongDateString());
源代码网推荐AddItem("ShortTimeString is " + dtCurrTime.ToShortTimeString());
源代码网推荐AddItem("LongTimeString is " + dtCurrTime.ToLongTimeString());
源代码网推荐}
源代码网推荐public class FormTimeSpans : System.WinForms.Form

{
源代码网推荐... as before

public FormTimeSpans()

{
源代码网推荐//
源代码网推荐// Required for Win Form Designer support
源代码网推荐//
源代码网推荐InitializeComponent();

//
源代码网推荐// TODO: Add any constructor code after InitializeComponent call
源代码网推荐//

// constructor: TimeSpan(days, hours, minutes, seconds)
源代码网推荐TimeSpan Span = new TimeSpan(4,2,15,0);

// initialize date to 1 Jan 2000, 12 pm
源代码网推荐// constructor: DateTime(year,month,day,hours,minutes,seconds,
源代码网推荐// milliseconds)
源代码网推荐DateTime dtOld = new DateTime(2000,1,1,12,0,0,0);

DateTime dtNew = dtOld + Span;

AddItem("Original date was " + dtOld.ToLongDateString() +
源代码网推荐" " + dtOld.ToShortTimeString());
源代码网推荐AddItem("Adding time span of " + Span.ToString());
源代码网推荐AddItem("Result is " + dtNew.ToLongDateString() + " " +
源代码网推荐dtNew.ToShortTimeString());
源代码网推荐AddItem("");
源代码网推荐AddItem("Time span broken down is:");
源代码网推荐AddItem("Days: " + Span.Days.ToString());
源代码网推荐AddItem("Hours: " + Span.Hours.ToString());
源代码网推荐AddItem("Minutes: " + Span.Minutes.ToString());
源代码网推荐AddItem("Seconds: " + Span.Seconds.ToString());
源代码网推荐AddItem("Milliseconds: " + Span.Milliseconds.ToString());
源代码网推荐AddItem("Ticks: " + Span.Ticks.ToString());
源代码网推荐AddItem("");
源代码网推荐AddItem("TicksPerSecond: " + TimeSpan.TicksPerSecond.ToString());
源代码网推荐AddItem("TicksPerHour: " + TimeSpan.TicksPerHour.ToString());

源代码网推荐}
源代码网推荐
源代码网推荐
源代码网供稿.