# Decimal.Compare(Decimal, Decimal) 方法

## 定义

``````public:
static int Compare(System::Decimal d1, System::Decimal d2);``````
``public static int Compare (decimal d1, decimal d2);``
``static member Compare : decimal * decimal -> int``
``Public Shared Function Compare (d1 As Decimal, d2 As Decimal) As Integer``

d1
Decimal

d2
Decimal

#### 返回

Zero `d1``d2` 相等。`d1` and `d2` are equal.

## 示例

``````using System;

public enum Relationship
{  LessThan = -1, Equals = 0, GreaterThan = 1 }

public class Example
{
public static void Main()
{
decimal value1 = Decimal.MaxValue;
decimal value2 = value1 - .01m;
Console.WriteLine("{0} {2} {1}", value1, value2,
(Relationship) Decimal.Compare(value1, value2));

value2 = value1 / 12m - .1m;
value1 = value1 / 12m;
Console.WriteLine("{0} {2} {1}", value1, value2,
(Relationship) Decimal.Compare(value1, value2));

value1 = value1 - .2m;
value2 = value2 + .1m;
Console.WriteLine("{0} {2} {1}", value1, value2,
(Relationship) Decimal.Compare(value1, value2));
}
}
// The example displays the following output:
//     79228162514264337593543950335 Equals 79228162514264337593543950335
//     6602346876188694799461995861.2 GreaterThan 6602346876188694799461995861.1
//     6602346876188694799461995861.0 LessThan 6602346876188694799461995861.2
``````
``````Public Enum Relationship As Integer
LessThan = -1
Equals = 0
GreaterThan = 1
End Enum

Module Example
Public Sub Main()
Dim value1 As Decimal = Decimal.MaxValue
Dim value2 As Decimal = value1 - .01d
Console.WriteLine("{0} {2} {1}", value1, value2,
CType(Decimal.Compare(value1, value2), Relationship))

value2 = value1 / 12d - .1d
value1 = value1 / 12d
Console.WriteLine("{0} {2} {1}", value1, value2,
CType(Decimal.Compare(value1, value2), Relationship))

value1 = value1 - .2d
value2 = value2 + .1d
Console.WriteLine("{0} {2} {1}", value1, value2,
CType(Decimal.Compare(value1, value2), Relationship))
End Sub
End Module
' The example displays the following output:
'     79228162514264337593543950335 Equals 79228162514264337593543950335
'     6602346876188694799461995861.2 GreaterThan 6602346876188694799461995861.1
'     6602346876188694799461995861.0 LessThan 6602346876188694799461995861.2
``````