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TimeSpan.CompareTo 方法 (TimeSpan)

注意:此方法在 .NET Framework 2.0 版中是新增的。

将此实例与指定 TimeSpan 对象进行比较并返回对其相对值的指示。

命名空间:System
程序集:mscorlib(在 mscorlib.dll 中)

public int CompareTo (
	TimeSpan value
)
public final int CompareTo (
	TimeSpan value
)
public final function CompareTo (
	value : TimeSpan
) : int

参数

value

要与此实例进行比较的 TimeSpan 对象。

返回值

有符号数字,指示此实例和 value 的相对值。

说明

负整数

此实例小于 value

此实例等于 value

正整数

此实例大于 value

此方法实现 System.IComparable 接口,并且执行效果略好于 TimeSpan.CompareTo 方法,这是因为它不必将 value 参数转换为对象。

下面的代码示例演示多个值类型和引用类型的 CompareTo 方法的泛型和非泛型版本。

// This example demonstrates the generic and non-generic versions of the 
// CompareTo method for several base types.
// The non-generic version takes a parameter of type Object, while the generic
// version takes a type-specific parameter, such as Boolean, Int32, or Double.

using System;

class Sample 
{
    public static void Main() 
    {
    string    nl = Environment.NewLine;
    string    msg = "{0}The following is the result of using the generic and non-generic{0}" +
                    "versions of the CompareTo method for several base types:{0}";

    DateTime  now = DateTime.Now;
// Time span = 11 days, 22 hours, 33 minutes, 44 seconds
    TimeSpan  tsX = new TimeSpan(11, 22, 33, 44); 
// Version = 1.2.333.4
    Version   versX = new Version("1.2.333.4");  
// Guid = CA761232-ED42-11CE-BACD-00AA0057B223
    Guid      guidX = new Guid("{CA761232-ED42-11CE-BACD-00AA0057B223}");

    Boolean  a1 = true,  a2 = true;
    Byte     b1 = 1,     b2 = 1;
    Int16    c1 = -2,    c2 = 2;
    Int32    d1 = 3,     d2 = 3;
    Int64    e1 = 4,     e2 = -4;
    Decimal  f1 = -5.5m, f2 = 5.5m;
    Single   g1 = 6.6f,  g2 = 6.6f;
    Double   h1 = 7.7d,  h2 = -7.7d;
    Char     i1 = 'A',   i2 = 'A';
    String   j1 = "abc", j2 = "abc";
    DateTime k1 = now,   k2 = now;
    TimeSpan l1 = tsX,   l2 = tsX;
    Version  m1 = versX, m2 = new Version("2.0");
    Guid     n1 = guidX, n2 = guidX;

// The following types are not CLS-compliant.
    SByte    w1 = 8,     w2 = 8;
    UInt16   x1 = 9,     x2 = 9;
    UInt32   y1 = 10,    y2 = 10;
    UInt64   z1 = 11,    z2 = 11;
//
    Console.WriteLine(msg, nl);
    try 
        {
// The second and third Show method call parameters are automatically boxed because
// the second and third Show method declaration arguments expect type Object.

        Show("Boolean:  ", a1, a2, a1.CompareTo(a2), a1.CompareTo((Object)a2));
        Show("Byte:     ", b1, b2, b1.CompareTo(b2), b1.CompareTo((Object)b2));
        Show("Int16:    ", c1, c2, c1.CompareTo(c2), c1.CompareTo((Object)c2));
        Show("Int32:    ", d1, d2, d1.CompareTo(d2), d1.CompareTo((Object)d2));
        Show("Int64:    ", e1, e2, e1.CompareTo(e2), e1.CompareTo((Object)e2));
        Show("Decimal:  ", f1, f2, f1.CompareTo(f2), f1.CompareTo((Object)f2));
        Show("Single:   ", g1, g2, g1.CompareTo(g2), g1.CompareTo((Object)g2));
        Show("Double:   ", h1, h2, h1.CompareTo(h2), h1.CompareTo((Object)h2));
        Show("Char:     ", i1, i2, i1.CompareTo(i2), i1.CompareTo((Object)i2));
        Show("String:   ", j1, j2, j1.CompareTo(j2), j1.CompareTo((Object)j2));
        Show("DateTime: ", k1, k2, k1.CompareTo(k2), k1.CompareTo((Object)k2));
        Show("TimeSpan: ", l1, l2, l1.CompareTo(l2), l1.CompareTo((Object)l2));
        Show("Version:  ", m1, m2, m1.CompareTo(m2), m1.CompareTo((Object)m2));
        Show("Guid:     ", n1, n2, n1.CompareTo(n2), n1.CompareTo((Object)n2));
//
        Console.WriteLine("{0}The following types are not CLS-compliant:", nl);
        Show("SByte:    ", w1, w2, w1.CompareTo(w2), w1.CompareTo((Object)w2));
        Show("UInt16:   ", x1, x2, x1.CompareTo(x2), x1.CompareTo((Object)x2));
        Show("UInt32:   ", y1, y2, y1.CompareTo(y2), y1.CompareTo((Object)y2));
        Show("UInt64:   ", z1, z2, z1.CompareTo(z2), z1.CompareTo((Object)z2));
        }
    catch (Exception e)
        {
        Console.WriteLine(e);
        }
    }

    public static void Show(string caption, Object var1, Object var2, 
                            int resultGeneric, int resultNonGeneric)
    {
    string relation;

    Console.Write(caption);
    if (resultGeneric == resultNonGeneric) 
        {
        if      (resultGeneric < 0) relation = "less than";
        else if (resultGeneric > 0) relation = "greater than";
        else                        relation = "equal to";
        Console.WriteLine("{0} is {1} {2}", var1, relation, var2);
        }

// The following condition will never occur because the generic and non-generic
// CompareTo methods are equivalent.

    else
        {
        Console.WriteLine("Generic CompareTo = {0}; non-generic CompareTo = {1}", 
                           resultGeneric, resultNonGeneric);
        }
   }
}
/*
This example produces the following results:

The following is the result of using the generic and non-generic versions of the
CompareTo method for several base types:

Boolean:  True is equal to True
Byte:     1 is equal to 1
Int16:    -2 is less than 2
Int32:    3 is equal to 3
Int64:    4 is greater than -4
Decimal:  -5.5 is less than 5.5
Single:   6.6 is equal to 6.6
Double:   7.7 is greater than -7.7
Char:     A is equal to A
String:   abc is equal to abc
DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
TimeSpan: 11.22:33:44 is equal to 11.22:33:44
Version:  1.2.333.4 is less than 2.0
Guid:     ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42-11ce-bacd-00
aa0057b223

The following types are not CLS-compliant:
SByte:    8 is equal to 8
UInt16:   9 is equal to 9
UInt32:   10 is equal to 10
UInt64:   11 is equal to 11
*/

// This example demonstrates the generic and non-generic versions of the 
// CompareTo method for several base types.
// The non-generic version takes a parameter of type Object, while the generic
// version takes a type-specific parameter, such as Boolean, Int32, or Double.

import System.*;

class Sample
{
    public static void main(String[] args)
    {
        String nl = Environment.get_NewLine();
        String msg = "{0}The following is the result of using the generic and"
            +" non-generic{0}versions of the CompareTo method for"
            +" several base types:{0}";

        DateTime now = DateTime.get_Now();

        // Time span = 11 days, 22 hours, 33 minutes, 44 seconds
        TimeSpan tsX = new TimeSpan(11, 22, 33, 44);

        // Version = 1.2.333.4
        Version versX = new Version("1.2.333.4");

        // Guid = CA761232-ED42-11CE-BACD-00AA0057B223
        Guid guidX = new Guid("{CA761232-ED42-11CE-BACD-00AA0057B223}");

        System.Boolean a1 = true,a2 = true;
        System.Byte b1 = (System.Byte)1,b2 =(System.Byte)1;
        Int16 c1 = (System.Int16)(-2),c2 = (System.Int16)2;
        Int32 d1 = (System.Int32)3,d2 = (System.Int32)3;
        Int64 e1 = (System.Int64)4,e2 = (System.Int64)(-4);
        Decimal f1 = new Decimal(-5.5),f2 = new Decimal(5.5);
        Single g1 = (System.Single)6.6,g2 = (System.Single)6.6;
        System.Double h1 = (System.Double)7.7,h2 = (System.Double)(-7.7);
        System.Char i1 = (System.Char)'A',i2 = (System.Char)'A';;
        String j1 = "abc", j2 = "abc";
        DateTime k1 = now, k2 = now;
        TimeSpan l1 = tsX, l2 = tsX;
        Version m1 = versX, m2 = new Version("2.0");
        Guid n1 = guidX, n2 = guidX;

        // The following types are not CLS-compliant.
        SByte w1 = (System.SByte)8,w2 = (System.SByte)8;
        UInt16 x1 = (System.UInt16)9,x2 = (System.UInt16)9;
        UInt32 y1 = (System.UInt32)10,y2 = (System.UInt32)10;
        UInt64 z1 = (System.UInt64)11,z2 = (System.UInt64)11;
        //
        Console.WriteLine(msg, nl);
        try {
            // The second and third Show method call parameters are
            // automatically boxed because the second and third Show method
            // declaration arguments expect type Object.
            Show("Boolean:  ", a1, a2, a1.CompareTo(a2),
                a1.CompareTo((Object)a2));
            Show("Byte:     ", b1, b2, b1.CompareTo(b2),
                b1.CompareTo((Object)b2));
            Show("Int16:    ", c1, c2, c1.CompareTo(c2), 
                c1.CompareTo((Object)c2));
            Show("Int32:    ", d1, d2, d1.CompareTo(d2),
                d1.CompareTo((Object)d2));
            Show("Int64:    ", e1, e2, e1.CompareTo(e2),
                e1.CompareTo(((Object)e2)));
            Show("Decimal:  ", f1, f2, f1.CompareTo(f2),
                f1.CompareTo((Object)f2));
            Show("Single:   ", g1, g2, g1.CompareTo(g2),
                g1.CompareTo((Object)g2));
            Show("Double:   ", h1, h2, h1.CompareTo(h2),
                h1.CompareTo((Object)h2));
            Show("Char:     ", i1, i2, i1.CompareTo(i2), 
                i1.CompareTo(((Object)i2)));
            Show("String:   ", j1, j2, j1.CompareTo(j2),
                j1.CompareTo((Object)j2));
            Show("DateTime: ", k1, k2, k1.CompareTo(k2),
                k1.CompareTo((Object)(k2)));
            Show("TimeSpan: ", l1, l2, l1.CompareTo(l2),
                l1.CompareTo((Object)l2));
            Show("Version:  ", m1, m2, m1.CompareTo(m2), 
                m1.CompareTo((Object)m2));
            Show("Guid:     ", n1, n2, n1.CompareTo(n2), 
                n1.CompareTo((Object)n2));
            //
            Console.WriteLine(
                "{0}The following types are not CLS-compliant:", nl);
            Show("SByte:    ", w1, w2, w1.CompareTo(w2),
                w1.CompareTo((Object)w2));
            Show("UInt16:   ", x1, x2, x1.CompareTo(x2), 
                x1.CompareTo((Object)x2));
            Show("UInt32:   ", y1, y2, y1.CompareTo(y2),
                y1.CompareTo((Object)y2));
            Show("UInt64:   ", z1, z2, z1.CompareTo(z2),
                z1.CompareTo((Object)z2));
        }
        catch (System.Exception e) {
            Console.WriteLine(e);
        }
    } //main

    public static void Show(String caption, Object var1, Object var2,
        int resultGeneric, int resultNonGeneric)
    {
        String relation;

        Console.Write(caption);
        if (resultGeneric == resultNonGeneric) {
            if (resultGeneric < 0) {
                relation = "less than";
            }
            else {
                if (resultGeneric > 0) {
                    relation = "greater than";
                }
                else {
                    relation = "equal to";
                }
            }
            Console.WriteLine("{0} is {1} {2}", var1, relation, var2);
        }
        // The following condition will never occur because the generic and 
        // non-generic CompareTo methods are equivalent.
        else {
            Console.WriteLine("Generic CompareTo = {0};"
                +" non-generic CompareTo = {1}",
                System.Convert.ToString(resultGeneric),
                System.Convert.ToString(resultNonGeneric));
        }
    } //Show
} //Sample
/*
This example produces the following results:

The following is the result of using the generic and non-generic versions of the
CompareTo method for several base types:

Boolean:  True is equal to True
Byte:     1 is equal to 1
Int16:    -2 is less than 2
Int32:    3 is equal to 3
Int64:    4 is greater than -4
Decimal:  -5.5 is less than 5.5
Single:   6.6 is equal to 6.6
Double:   7.7 is greater than -7.7
Char:     A is equal to A
String:   abc is equal to abc
DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
TimeSpan: 11.22:33:44 is equal to 11.22:33:44
Version:  1.2.333.4 is less than 2.0
Guid:     ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42
-11ce-bacd-00aa0057b223

The following types are not CLS-compliant:
SByte:    8 is equal to 8
UInt16:   9 is equal to 9
UInt32:   10 is equal to 10
UInt64:   11 is equal to 11
*/

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求

.NET Framework

受以下版本支持:2.0

.NET Compact Framework

受以下版本支持:2.0
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