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TimeSpan.Compare 方法

2013/12/13

比较两个 TimeSpan 值,并返回一个整数,该整数指示第一个时间间隔是大于、等于还是小于第二个时间间隔。

Namespace:  System
程序集:  mscorlib(位于 mscorlib.dll 中)

public static int Compare(
	TimeSpan t1,
	TimeSpan t2
)

参数

t1
类型: System.TimeSpan
要比较的第一个时间间隔。
t2
类型: System.TimeSpan
要比较的第二个时间间隔。

返回值

类型: System.Int32
下表中的值之一。

说明

-1

t1 小于 t2

0

t1 等于 t2

1

t1 大于 t2

下面的代码示例使用 Compare 方法将几个 TimeSpan 对象同一个参考 TimeSpan 进行比较。


// Example of the TimeSpan.Compare( TimeSpan, TimeSpan ) and 
// TimeSpan.Equals( TimeSpan, TimeSpan ) methods.
using System;

class Example
{
   const string dataFmt = "{0,-38}{1}";

   // Compare TimeSpan parameters, and display them with the results.
   static void CompareTimeSpans(System.Windows.Controls.TextBlock outputBlock, TimeSpan Left, TimeSpan Right,
       string RightText)
   {
      outputBlock.Text += "\n";
      outputBlock.Text += String.Format(dataFmt, "Right: " + RightText, Right) + "\n";
      outputBlock.Text += String.Format(dataFmt, "TimeSpan.Equals( Left, Right )",
          TimeSpan.Equals(Left, Right)) + "\n";
      outputBlock.Text += String.Format(dataFmt,
          "TimeSpan.Compare( Left, Right )",
          TimeSpan.Compare(Left, Right)) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      TimeSpan Left = new TimeSpan(2, 0, 0);

      outputBlock.Text += 
          "This example of the TimeSpan.Equals( TimeSpan, Time" +
          "Span ) and \nTimeSpan.Compare( TimeSpan, TimeSpan ) " +
          "methods generates the \nfollowing output by creating " +
          "several different TimeSpan \nobjects and comparing " +
          "them with a 2-hour TimeSpan.\n" + "\n";
      outputBlock.Text += String.Format(dataFmt, "Left: TimeSpan( 2, 0, 0 )",
          Left) + "\n";

      // Create objects to compare with a 2-hour TimeSpan.
      CompareTimeSpans(outputBlock, Left, new TimeSpan(0, 120, 0),
          "TimeSpan( 0, 120, 0 )");
      CompareTimeSpans(outputBlock, Left, new TimeSpan(2, 0, 1),
          "TimeSpan( 2, 0, 1 )");
      CompareTimeSpans(outputBlock, Left, new TimeSpan(2, 0, -1),
          "TimeSpan( 2, 0, -1 )");
      CompareTimeSpans(outputBlock, Left, new TimeSpan(72000000000),
          "TimeSpan( 72000000000 )");
      CompareTimeSpans(outputBlock, Left, TimeSpan.FromDays(1.0 / 12D),
          "TimeSpan.FromDays( 1 / 12 )");
   }
}

/*
This example of the TimeSpan.Equals( TimeSpan, TimeSpan ) and
TimeSpan.Compare( TimeSpan, TimeSpan ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 2-hour TimeSpan.

Left: TimeSpan( 2, 0, 0 )             02:00:00

Right: TimeSpan( 0, 120, 0 )          02:00:00
TimeSpan.Equals( Left, Right )        True
TimeSpan.Compare( Left, Right )       0

Right: TimeSpan( 2, 0, 1 )            02:00:01
TimeSpan.Equals( Left, Right )        False
TimeSpan.Compare( Left, Right )       -1

Right: TimeSpan( 2, 0, -1 )           01:59:59
TimeSpan.Equals( Left, Right )        False
TimeSpan.Compare( Left, Right )       1

Right: TimeSpan( 72000000000 )        02:00:00
TimeSpan.Equals( Left, Right )        True
TimeSpan.Compare( Left, Right )       0

Right: TimeSpan.FromDays( 1 / 12 )    02:00:00
TimeSpan.Equals( Left, Right )        True
TimeSpan.Compare( Left, Right )       0
*/


Windows Phone OS

受以下版本支持: 8.0, 7.1, 7.0

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