CompareInfo.Compare 方法

  • 參考

定義

命名空間:
System.Globalization
組件:
System.Globalization.dll
組件:
System.Runtime.dll
組件:
mscorlib.dll
組件:
netstandard.dll

比較兩個字串。

多載

Compare(String, String)

比較兩個字串。
Compare(ReadOnlySpan<Char>, ReadOnlySpan<Char>, CompareOptions)

比較兩個唯讀字元範圍。
Compare(String, String, CompareOptions)

使用指定的 CompareOptions 值來比較兩個字串。
Compare(String, Int32, String, Int32)

將字串的結尾區段與另一個字串的結尾區段相比較。
Compare(String, Int32, String, Int32, CompareOptions)

使用指定的 CompareOptions 值，將字串的結尾區段與另一個字串的結尾區段相比較。
Compare(String, Int32, Int32, String, Int32, Int32)

將一個字串的區段與另一個字串的區段相比較。
Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)

使用指定的 CompareOptions 值，將一個字串的區段與另一個字串的區段相比較。

Compare(String, String)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

比較兩個字串。

public:
 virtual int Compare(System::String ^ string1, System::String ^ string2);
public:
 int Compare(System::String ^ string1, System::String ^ string2);
public virtual int Compare (string string1, string string2);
public int Compare (string? string1, string? string2);
public virtual int Compare (string? string1, string? string2);
abstract member Compare : string * string -> int
override this.Compare : string * string -> int
member this.Compare : string * string -> int
Public Overridable Function Compare (string1 As String, string2 As String) As Integer
Public Function Compare (string1 As String, string2 As String) As Integer

參數

string1
String

要比較的第一個字串。

string2
String

要比較的第二個字串。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零string1 小於 string2。
大於零string1 大於 string2。

範例

下列範例會使用不同的 CompareInfo 物件來比較兩個字串的部分：

// The following code example compares two strings using the different CompareInfo instances:
//    a CompareInfo instance associated with the S"Spanish - Spain" culture with international sort,
//    a CompareInfo instance associated with the S"Spanish - Spain" culture with traditional sort, and
//    a CompareInfo instance associated with the InvariantCulture.
using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
   Console::WriteLine( "   With myCompIntl::Compare: {0}", myCompIntl->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With myCompTrad::Compare: {0}", myCompTrad->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With myCompInva::Compare: {0}", myCompInva->Compare( myStr1, myStr2 ) );
}

/*
This code produces the following output.

Comparing "calle" and "calor"
   With myCompIntl::Compare: -1
   With myCompTrad::Compare: 1
   With myCompInva::Compare: -1
*/

// The following code example compares two strings using the different CompareInfo instances:
//    a CompareInfo instance associated with the "Spanish - Spain" culture with international sort,
//    a CompareInfo instance associated with the "Spanish - Spain" culture with traditional sort, and
//    a CompareInfo instance associated with the InvariantCulture.

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, myStr2 ) );
   }
}


/*
This code produces the following output.

Comparing "calle" and "calor"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/

' The following code example compares two strings using the different CompareInfo instances:
'    a CompareInfo instance associated with the "Spanish - Spain" culture with international sort,
'    a CompareInfo instance associated with the "Spanish - Spain" culture with traditional sort, and
'    a CompareInfo instance associated with the InvariantCulture.

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1, myStr2)
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, myStr2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, myStr2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, myStr2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "calle" and "calor"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

下列程式碼範例示範如何呼叫 Compare 方法。

using namespace System;
using namespace System::Text;
using namespace System::Globalization;

int main()
{
    array<String^>^ sign = gcnew array<String^> { "<", "=", ">" };

    // The code below demonstrates how strings compare
    // differently for different cultures.
    String^ s1 = "Coté"; 
    String^ s2 = "coté";
    String^ s3 = "côte";

    // Set sort order of strings for French in France.
    CompareInfo^ ci = (gcnew CultureInfo("fr-FR"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using fr-FR Compare of Coté = coté.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s1, s2, sign[ci->Compare(s1, s2, CompareOptions::IgnoreCase) + 1]);

    // Display the result using fr-FR Compare of coté > côte.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3, CompareOptions::None) + 1]);

    // Set sort order of strings for Japanese as spoken in Japan.
    ci = (gcnew CultureInfo("ja-JP"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using ja-JP Compare of coté < côte.
    Console::WriteLine("ja-JP Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3) + 1]);
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte

using System;
using System.Text;
using System.Globalization;

public sealed class App
{
    static void Main(string[] args)
    {
        String[] sign = new String[] { "<", "=", ">" };

        // The code below demonstrates how strings compare
        // differently for different cultures.
        String s1 = "Coté", s2 = "coté", s3 = "côte";

        // Set sort order of strings for French in France.
        CompareInfo ci = new CultureInfo("fr-FR").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s1, s2, sign[ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1]);

        // Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3, CompareOptions.None) + 1]);

        // Set sort order of strings for Japanese as spoken in Japan.
        ci = new CultureInfo("ja-JP").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using ja-JP Compare of coté < côte.
        Console.WriteLine("ja-JP Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3) + 1]);
    }
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte

Imports System.Text
Imports System.Globalization

NotInheritable Public Class App
    Shared Sub Main(ByVal args() As String) 
        Dim sign() As String = {"<", "=", ">"}
        
        ' The code below demonstrates how strings compare 
        ' differently for different cultures.
        Dim s1 As String = "Coté"
        Dim s2 As String = "coté"
        Dim s3 As String = "côte"
        
        ' Set sort order of strings for French in France.
        Dim ci As CompareInfo = New CultureInfo("fr-FR").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s1, s2, sign((ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1)))
        
        ' Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3, CompareOptions.None) + 1)))
        
        ' Set sort order of strings for Japanese as spoken in Japan.
        ci = New CultureInfo("ja-JP").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3) + 1)))
    End Sub
End Class

' This code produces the following output.
' 
' The LCID for fr-FR is 1036.
' fr-FR Compare: Coté = coté
' fr-FR Compare: coté > côte
' The LCID for ja-JP is 1041.
' ja-JP Compare: coté < côte

備註

根據預設，會使用 CompareOptions.None 來執行比較。 如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該呼叫具有 型 CompareOptions 別參數的字串比較方法，以指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元，這些字元在執行語言或區分文化特性的比較時不列入考慮。 方法 Compare(String, String) 在執行區分文化特性的比較時，不會考慮這類字元。 例如，使用軟連字號或 U+00AD) 來區分「動物」的文化特性比較與「ani-mal」 (表示這兩個字串相等，如下列範例所示。

Imports System.Globalization

Module Example
   Public Sub Main()
      Dim ci As CompareInfo = CultureInfo.CurrentCulture.CompareInfo
      Dim s1 As String = "ani" + ChrW(&h00AD) + "mal"
      Dim s2 As String = "animal"
      
      Console.WriteLine("Comparison of '{0}' and '{1}': {2}", 
                        s1, s2, ci.Compare(s1, s2))
  End Sub
End Module
' The example displays the following output:
'       Comparison of 'ani-mal' and 'animal': 0

若要辨識字串比較中的可忽略字元，請呼叫 Compare(String, String, CompareOptions) 方法，並為 參數提供 或 OrdinalIgnoreCaseoptions 的值 Ordinal 。

適用於

Compare(ReadOnlySpan<Char>, ReadOnlySpan<Char>, CompareOptions)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

比較兩個唯讀字元範圍。

public int Compare (ReadOnlySpan<char> string1, ReadOnlySpan<char> string2, System.Globalization.CompareOptions options = System.Globalization.CompareOptions.None);
member this.Compare : ReadOnlySpan<char> * ReadOnlySpan<char> * System.Globalization.CompareOptions -> int
Public Function Compare (string1 As ReadOnlySpan(Of Char), string2 As ReadOnlySpan(Of Char), Optional options As CompareOptions = System.Globalization.CompareOptions.None) As Integer

參數

string1
ReadOnlySpan<Char>

要比較的第一個唯讀字元範圍。

string2
ReadOnlySpan<Char>

要比較的第二個唯讀字元範圍。

options
CompareOptions

要在比較期間使用的選擇性 CompareOptions 列舉值組合。 預設值是 None。

傳回

Int32

若 string1 和 string2 相等，則為零；若 string1 排序在 string2 前面，則為負值；若 string1 排序在 string2 後面，則為正值。

例外狀況

ArgumentException

options 包含旗標不支援的組合。

適用於

Compare(String, String, CompareOptions)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

使用指定的 CompareOptions 值來比較兩個字串。

public:
 virtual int Compare(System::String ^ string1, System::String ^ string2, System::Globalization::CompareOptions options);
public:
 int Compare(System::String ^ string1, System::String ^ string2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, string string2, System.Globalization.CompareOptions options);
public int Compare (string? string1, string? string2, System.Globalization.CompareOptions options);
public virtual int Compare (string? string1, string? string2, System.Globalization.CompareOptions options);
abstract member Compare : string * string * System.Globalization.CompareOptions -> int
override this.Compare : string * string * System.Globalization.CompareOptions -> int
member this.Compare : string * string * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, string2 As String, options As CompareOptions) As Integer
Public Function Compare (string1 As String, string2 As String, options As CompareOptions) As Integer

參數

string1
String

要比較的第一個字串。

string2
String

要比較的第二個字串。

options
CompareOptions

值，這個值會定義應該如何比較 string1 和 string2。 options 若不是 Ordinal 列舉值，就是下列一個或多個值的位元組合：IgnoreCase、IgnoreSymbols、IgnoreNonSpace、IgnoreWidth、IgnoreKanaType 和 StringSort。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零string1 小於 string2。
大於零string1 大於 string2。

例外狀況

ArgumentException

options 包含無效的 CompareOptions 值。

範例

下列範例會使用不同的 CompareOptions 設定來比較兩個字串。

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo which uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, myStr2, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "My Uncle Bill's clients" and "My uncle bills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0
*/

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );
   }
}


/*
This code produces the following output.

Comparing "My Uncle Bill's clients" and "My uncle bills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1, myStr2)
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, myStr2))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "My Uncle Bill's clients" and "My uncle bills clients"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -32
'   With StringSort                   : -1
'   With IgnoreCase                   : 1
'   With IgnoreSymbols                : 1
'   With IgnoreCase and IgnoreSymbols : 0

下列程式碼範例示範如何呼叫 Compare 方法。

using namespace System;
using namespace System::Text;
using namespace System::Globalization;

int main()
{
    array<String^>^ sign = gcnew array<String^> { "<", "=", ">" };

    // The code below demonstrates how strings compare
    // differently for different cultures.
    String^ s1 = "Coté"; 
    String^ s2 = "coté";
    String^ s3 = "côte";

    // Set sort order of strings for French in France.
    CompareInfo^ ci = (gcnew CultureInfo("fr-FR"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using fr-FR Compare of Coté = coté.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s1, s2, sign[ci->Compare(s1, s2, CompareOptions::IgnoreCase) + 1]);

    // Display the result using fr-FR Compare of coté > côte.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3, CompareOptions::None) + 1]);

    // Set sort order of strings for Japanese as spoken in Japan.
    ci = (gcnew CultureInfo("ja-JP"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using ja-JP Compare of coté < côte.
    Console::WriteLine("ja-JP Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3) + 1]);
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte

using System;
using System.Text;
using System.Globalization;

public sealed class App
{
    static void Main(string[] args)
    {
        String[] sign = new String[] { "<", "=", ">" };

        // The code below demonstrates how strings compare
        // differently for different cultures.
        String s1 = "Coté", s2 = "coté", s3 = "côte";

        // Set sort order of strings for French in France.
        CompareInfo ci = new CultureInfo("fr-FR").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s1, s2, sign[ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1]);

        // Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3, CompareOptions.None) + 1]);

        // Set sort order of strings for Japanese as spoken in Japan.
        ci = new CultureInfo("ja-JP").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using ja-JP Compare of coté < côte.
        Console.WriteLine("ja-JP Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3) + 1]);
    }
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte

Imports System.Text
Imports System.Globalization

NotInheritable Public Class App
    Shared Sub Main(ByVal args() As String) 
        Dim sign() As String = {"<", "=", ">"}
        
        ' The code below demonstrates how strings compare 
        ' differently for different cultures.
        Dim s1 As String = "Coté"
        Dim s2 As String = "coté"
        Dim s3 As String = "côte"
        
        ' Set sort order of strings for French in France.
        Dim ci As CompareInfo = New CultureInfo("fr-FR").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s1, s2, sign((ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1)))
        
        ' Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3, CompareOptions.None) + 1)))
        
        ' Set sort order of strings for Japanese as spoken in Japan.
        ci = New CultureInfo("ja-JP").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3) + 1)))
    End Sub
End Class

' This code produces the following output.
' 
' The LCID for fr-FR is 1036.
' fr-FR Compare: Coté = coté
' fr-FR Compare: coté > côte
' The LCID for ja-JP is 1041.
' ja-JP Compare: coté < côte

備註

如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該呼叫具有 型 CompareOptions 別參數的字串比較方法，以指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元，這些字元在執行語言或區分文化特性的比較時不列入考慮。 方法 Compare(String, String, CompareOptions) 在執行區分文化特性的比較時，不會考慮這類字元。 若要辨識比較中可忽略的字元，請為 options 參數提供 或 OrdinalIgnoreCase 的值 Ordinal 。

另請參閱

適用於

Compare(String, Int32, String, Int32)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

將字串的結尾區段與另一個字串的結尾區段相比較。

public:
 virtual int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2);
public:
 int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2);
public virtual int Compare (string string1, int offset1, string string2, int offset2);
public int Compare (string? string1, int offset1, string? string2, int offset2);
public virtual int Compare (string? string1, int offset1, string? string2, int offset2);
abstract member Compare : string * int * string * int -> int
override this.Compare : string * int * string * int -> int
member this.Compare : string * int * string * int -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer) As Integer
Public Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer) As Integer

參數

string1
String

要比較的第一個字串。

offset1
Int32

string1 中要開始比較字元的以零起始的索引。

string2
String

要比較的第二個字串。

offset2
Int32

string2 中要開始比較字元的以零起始的索引。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零 string1 的指定區段小於 string2 的指定區段。
大於零 string1 的指定區段大於 string2 的指定區段。

例外狀況

ArgumentOutOfRangeException

offset1 或 offset2 小於零。

-或-

offset1 大於或等於 string1 中的字元數。

-或-

offset2 大於或等於 string2 中的字元數。

範例

下列範例會使用不同的 CompareInfo 物件來比較兩個字串的部分：

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 2 ), myStr2->Substring( 2 ) );
   Console::WriteLine( "   With myCompIntl::Compare: {0}", myCompIntl->Compare( myStr1, 2, myStr2, 2 ) );
   Console::WriteLine( "   With myCompTrad::Compare: {0}", myCompTrad->Compare( myStr1, 2, myStr2, 2 ) );
   Console::WriteLine( "   With myCompInva::Compare: {0}", myCompInva->Compare( myStr1, 2, myStr2, 2 ) );
}

/*
This code produces the following output.

Comparing "lle" and "lor"
   With myCompIntl::Compare: -1
   With myCompTrad::Compare: 1
   With myCompInva::Compare: -1
*/

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 2 ), myStr2.Substring( 2 ) );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, 2, myStr2, 2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, 2, myStr2, 2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, 2, myStr2, 2 ) );
   }
}


/*
This code produces the following output.

Comparing "lle" and "lor"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(2), myStr2.Substring(2))
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, 2, myStr2, 2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, 2, myStr2, 2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, 2, myStr2, 2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "lle" and "lor"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

備註

如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該呼叫具有 型 CompareOptions 別參數的字串比較方法，以指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元。 方法 Compare(String, Int32, String, Int32) 在執行語言或區分文化特性的比較時，不會考慮這些字元。 若要辨識比較中可忽略的字元，請呼叫 Compare(String, Int32, String, Int32, CompareOptions) 方法，並為 參數提供 或 OrdinalIgnoreCaseoptions 的值 Ordinal 。

適用於

Compare(String, Int32, String, Int32, CompareOptions)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

使用指定的 CompareOptions 值，將字串的結尾區段與另一個字串的結尾區段相比較。

public:
 virtual int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2, System::Globalization::CompareOptions options);
public:
 int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, int offset1, string string2, int offset2, System.Globalization.CompareOptions options);
public int Compare (string? string1, int offset1, string? string2, int offset2, System.Globalization.CompareOptions options);
public virtual int Compare (string? string1, int offset1, string? string2, int offset2, System.Globalization.CompareOptions options);
abstract member Compare : string * int * string * int * System.Globalization.CompareOptions -> int
override this.Compare : string * int * string * int * System.Globalization.CompareOptions -> int
member this.Compare : string * int * string * int * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer, options As CompareOptions) As Integer
Public Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer, options As CompareOptions) As Integer

參數

string1
String

要比較的第一個字串。

offset1
Int32

string1 中要開始比較字元的以零起始的索引。

string2
String

要比較的第二個字串。

offset2
Int32

string2 中要開始比較字元的以零起始的索引。

options
CompareOptions

值，這個值會定義應該如何比較 string1 和 string2。 options 若不是 Ordinal 列舉值，就是下列一個或多個值的位元組合：IgnoreCase、IgnoreSymbols、IgnoreNonSpace、IgnoreWidth、IgnoreKanaType 和 StringSort。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零 string1 的指定區段小於 string2 的指定區段。
大於零 string1 的指定區段大於 string2 的指定區段。

例外狀況

ArgumentOutOfRangeException

offset1 或 offset2 小於零。

-或-

offset1 大於或等於 string1 中的字元數。

-或-

offset2 大於或等於 string2 中的字元數。

ArgumentException

options 包含無效的 CompareOptions 值。

範例

下列範例會使用不同的 CompareOptions 設定來比較兩個字串的部分。

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo that uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 10 ), myStr2->Substring( 10 ) );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, 10, myStr2, 10 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, 10, myStr2, 10, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "ill's clients" and "ills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -76
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 0
   With IgnoreCase and IgnoreSymbols : 0
*/

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 10 ), myStr2.Substring( 10 ) );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, 10, myStr2, 10 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );
   }
}


/*
This code produces the following output.

Comparing "ill's clients" and "ills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -76
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 0
   With IgnoreCase and IgnoreSymbols : 0

*/

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(10), myStr2.Substring(10))
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, 10, myStr2, 10))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "ill's clients" and "ills clients"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -76
'   With StringSort                   : -1
'   With IgnoreCase                   : 1
'   With IgnoreSymbols                : 0
'   With IgnoreCase and IgnoreSymbols : 0

備註

如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該呼叫具有 型 CompareOptions 別參數的字串比較方法，以指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元，這些字元在執行語言或區分文化特性的比較時不列入考慮。 方法 Compare(String, Int32, String, Int32, CompareOptions) 在執行區分文化特性的比較時，不會考慮這類字元。 若要辨識比較中可忽略的字元，請為 options 參數提供 或 OrdinalIgnoreCase 的值 Ordinal 。

另請參閱

適用於

Compare(String, Int32, Int32, String, Int32, Int32)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

將一個字串的區段與另一個字串的區段相比較。

public:
 virtual int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2);
public:
 int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2);
public virtual int Compare (string string1, int offset1, int length1, string string2, int offset2, int length2);
public int Compare (string? string1, int offset1, int length1, string? string2, int offset2, int length2);
public virtual int Compare (string? string1, int offset1, int length1, string? string2, int offset2, int length2);
abstract member Compare : string * int * int * string * int * int -> int
override this.Compare : string * int * int * string * int * int -> int
member this.Compare : string * int * int * string * int * int -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer) As Integer
Public Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer) As Integer

參數

string1
String

要比較的第一個字串。

offset1
Int32

string1 中要開始比較字元的以零起始的索引。

length1
Int32

string1 中要比較的連續字元數。

string2
String

要比較的第二個字串。

offset2
Int32

string2 中要開始比較字元的以零起始的索引。

length2
Int32

string2 中要比較的連續字元數。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零 string1 的指定區段小於 string2 的指定區段。
大於零 string1 的指定區段大於 string2 的指定區段。

例外狀況

ArgumentOutOfRangeException

offset1 或 length1 或 offset2 或 length2 小於零。

-或-

offset1 大於或等於 string1 中的字元數。

-或-

offset2 大於或等於 string2 中的字元數。

-或-

length1 大於從 offset1 到 string1 結尾的字元數。

-或-

length2 大於從 offset2 到 string2 結尾的字元數。

範例

下列範例會使用不同的 CompareInfo 物件來比較兩個字串的部分：

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \" {0}\" and \" {1}\"", myStr1->Substring( 2, 2 ), myStr2->Substring( 2, 2 ) );
   Console::WriteLine( "   With myCompIntl->Compare: {0}", myCompIntl->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
   Console::WriteLine( "   With myCompTrad->Compare: {0}", myCompTrad->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
   Console::WriteLine( "   With myCompInva->Compare: {0}", myCompInva->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
}

/*
This code produces the following output.

Comparing S"ll" and S"lo"
With myCompIntl.Compare: -1
With myCompTrad.Compare: 1
With myCompInva.Compare: -1

*/

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 2, 2 ), myStr2.Substring( 2, 2 ) );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
   }
}


/*
This code produces the following output.

Comparing "ll" and "lo"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(2, 2), myStr2.Substring(2, 2))
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, 2, 2, myStr2, 2, 2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, 2, 2, myStr2, 2, 2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, 2, 2, myStr2, 2, 2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "ll" and "lo"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

備註

如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該使用具有 型 CompareOptions 別參數的字串比較方法來指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元。 方法 Compare(String, Int32, Int32, String, Int32, Int32) 在執行語言或區分文化特性的比較時，不會考慮這些字元。 若要辨識比較中可忽略的字元，請呼叫 Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions) 方法，並為 參數提供 或 OrdinalIgnoreCaseoptions 的值 Ordinal 。

適用於

Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)

來源:
CompareInfo.cs
來源:
CompareInfo.cs
來源:
CompareInfo.cs

使用指定的 CompareOptions 值，將一個字串的區段與另一個字串的區段相比較。

public:
 virtual int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2, System::Globalization::CompareOptions options);
public:
 int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, int offset1, int length1, string string2, int offset2, int length2, System.Globalization.CompareOptions options);
public int Compare (string? string1, int offset1, int length1, string? string2, int offset2, int length2, System.Globalization.CompareOptions options);
public virtual int Compare (string? string1, int offset1, int length1, string? string2, int offset2, int length2, System.Globalization.CompareOptions options);
abstract member Compare : string * int * int * string * int * int * System.Globalization.CompareOptions -> int
override this.Compare : string * int * int * string * int * int * System.Globalization.CompareOptions -> int
member this.Compare : string * int * int * string * int * int * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer, options As CompareOptions) As Integer
Public Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer, options As CompareOptions) As Integer

參數

string1
String

要比較的第一個字串。

offset1
Int32

string1 中要開始比較字元的以零起始的索引。

length1
Int32

string1 中要比較的連續字元數。

string2
String

要比較的第二個字串。

offset2
Int32

string2 中要開始比較字元的以零起始的索引。

length2
Int32

string2 中要比較的連續字元數。

options
CompareOptions

值，這個值會定義應該如何比較 string1 和 string2。 options 若不是 Ordinal 列舉值，就是下列一個或多個值的位元組合：IgnoreCase、IgnoreSymbols、IgnoreNonSpace、IgnoreWidth、IgnoreKanaType 和 StringSort。

傳回

Int32

32 位元帶正負號整數，指出兩比較元的語彙關係。

值 條件
零 兩個字串相等。
小於零 string1 的指定區段小於 string2 的指定區段。
大於零 string1 的指定區段大於 string2 的指定區段。

例外狀況

ArgumentOutOfRangeException

offset1 或 length1 或 offset2 或 length2 小於零。

-或-

offset1 大於或等於 string1 中的字元數。

-或-

offset2 大於或等於 string2 中的字元數。

-或-

length1 大於從 offset1 到 string1 結尾的字元數。

-或-

length2 大於從 offset2 到 string2 結尾的字元數。

ArgumentException

options 包含無效的 CompareOptions 值。

範例

下列範例會使用不同的 CompareOptions 設定來比較兩個字串的部分。

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo that uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 3, 10 ), myStr2->Substring( 3, 10 ) );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "Uncle Bill" and "uncle bill"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : 1
   With IgnoreCase                   : 0
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 3, 10 ), myStr2.Substring( 3, 10 ) );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );
   }
}


/*
This code produces the following output.

Comparing "Uncle Bill" and "uncle bill"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : 1
   With IgnoreCase                   : 0
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(3, 10), myStr2.Substring(3, 10))
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "Uncle Bill" and "uncle bill"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -32
'   With StringSort                   : 1
'   With IgnoreCase                   : 0
'   With IgnoreSymbols                : 1
'   With IgnoreCase and IgnoreSymbols : 0

備註

如果安全性決策取決於字串比較或大小寫變更，您應該使用 InvariantCulture 屬性來確保不論作業系統的文化特性設定為何，行為都是一致的。

注意

可能的話，您應該呼叫具有 型 CompareOptions 別參數的字串比較方法，以指定預期的比較類型。 一般規則是，使用語言選項 (使用目前文化特性) 來比較使用者介面中顯示的字串，並指定 Ordinal 或 OrdinalIgnoreCase 進行安全性比較。

給呼叫者的注意事項

字元集包含可忽略的字元。 方法 Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions) 在執行區分文化特性的比較時，不會考慮這些字元。 若要辨識比較中可忽略的字元，請為 options 參數提供 或 OrdinalIgnoreCase 的值 Ordinal 。

另請參閱

適用於