StringComparer.Ordinal Właściwość
Definicja
Ważne
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StringComparer Pobiera obiekt, który wykonuje porównanie ciągów porządkowych z uwzględnieniem wielkości liter.
public:
static property StringComparer ^ Ordinal { StringComparer ^ get(); };public static StringComparer Ordinal { get; }member this.Ordinal : StringComparerPublic Shared ReadOnly Property Ordinal As StringComparerWartość właściwości
Obiekt StringComparer.
Przykłady
Poniższy przykład kodu przedstawia właściwości i Create metodę StringComparer klasy. W przykładzie pokazano, jak różne StringComparer obiekty sortują trzy wersje alfabetu łacińskiego I.
// This example demonstrates members of the
// System::StringComparer class.
using namespace System;
using namespace System::Collections;
using namespace System::Collections::Generic;
using namespace System::Globalization;
using namespace System::Threading;
void Display(List<String^>^ stringList, String^ title)
{
Char firstChar;
int codePoint;
Console::WriteLine(title);
for each (String^ s in stringList)
{
firstChar = s[0];
codePoint = Convert::ToInt32(firstChar);
Console::WriteLine("0x{0:x}", codePoint);
}
Console::WriteLine();
}
int main()
{
// Create a list of string.
List<String^>^ stringList = gcnew List<String^>();
// Get the tr-TR (Turkish-Turkey) culture.
CultureInfo^ turkishCulture = gcnew CultureInfo("tr-TR");
// Get the culture that is associated with the current thread.
CultureInfo^ currentCulture = Thread::CurrentThread->CurrentCulture;
// Get the standard StringComparers.
StringComparer^ invariant = StringComparer::InvariantCulture;
StringComparer^ invariantIgnoreCase =
StringComparer::InvariantCultureIgnoreCase;
StringComparer^ current = StringComparer::CurrentCulture;
StringComparer^ currentIgnoreCase =
StringComparer::CurrentCultureIgnoreCase;
StringComparer^ ordinal = StringComparer::Ordinal;
StringComparer^ ordinalIgnoreCase = StringComparer::OrdinalIgnoreCase;
// Create a StringComparer that uses the Turkish culture and ignores
// case.
StringComparer^ turkishIgnoreCase =
StringComparer::Create(turkishCulture, true);
// Define three strings consisting of different versions of the
// letter I. LATIN CAPITAL LETTER I (U+0049)
String^ capitalLetterI = "I";
// LATIN SMALL LETTER I (U+0069)
String^ smallLetterI = "i";
// LATIN SMALL LETTER DOTLESS I (U+0131)
String^ smallLetterDotlessI = L"\u0131";
// Add the three strings to the list.
stringList->Add(capitalLetterI);
stringList->Add(smallLetterI);
stringList->Add(smallLetterDotlessI);
// Display the original list order.
Display(stringList, "The original order of the list entries...");
// Sort the list using the invariant culture.
stringList->Sort(invariant);
Display(stringList, "Invariant culture...");
stringList->Sort(invariantIgnoreCase);
Display(stringList, "Invariant culture, ignore case...");
// Sort the list using the current culture.
Console::WriteLine("The current culture is \"{0}\".",
currentCulture->Name);
stringList->Sort(current);
Display(stringList, "Current culture...");
stringList->Sort(currentIgnoreCase);
Display(stringList, "Current culture, ignore case...");
// Sort the list using the ordinal value of the character code points.
stringList->Sort(ordinal);
Display(stringList, "Ordinal...");
stringList->Sort(ordinalIgnoreCase);
Display(stringList, "Ordinal, ignore case...");
// Sort the list using the Turkish culture, which treats LATIN SMALL
// LETTER DOTLESS I differently than LATIN SMALL LETTER I.
stringList->Sort(turkishIgnoreCase);
Display(stringList, "Turkish culture, ignore case...");
}
/*
This code example produces the following results:
The original order of the list entries...
0x49
0x69
0x131
Invariant culture...
0x69
0x49
0x131
Invariant culture, ignore case...
0x49
0x69
0x131
The current culture is "en-US".
Current culture...
0x69
0x49
0x131
Current culture, ignore case...
0x49
0x69
0x131
Ordinal...
0x49
0x69
0x131
Ordinal, ignore case...
0x69
0x49
0x131
Turkish culture, ignore case...
0x131
0x49
0x69
*/
// This example demonstrates members of the
// System.StringComparer class.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Threading;
class Sample
{
public static void Main()
{
// Create a list of string.
List<string> list = new List<string>();
// Get the tr-TR (Turkish-Turkey) culture.
CultureInfo turkish = new CultureInfo("tr-TR");
// Get the culture that is associated with the current thread.
CultureInfo thisCulture = Thread.CurrentThread.CurrentCulture;
// Get the standard StringComparers.
StringComparer invCmp = StringComparer.InvariantCulture;
StringComparer invICCmp = StringComparer.InvariantCultureIgnoreCase;
StringComparer currCmp = StringComparer.CurrentCulture;
StringComparer currICCmp = StringComparer.CurrentCultureIgnoreCase;
StringComparer ordCmp = StringComparer.Ordinal;
StringComparer ordICCmp = StringComparer.OrdinalIgnoreCase;
// Create a StringComparer that uses the Turkish culture and ignores case.
StringComparer turkICComp = StringComparer.Create(turkish, true);
// Define three strings consisting of different versions of the letter I.
// LATIN CAPITAL LETTER I (U+0049)
string capitalLetterI = "I";
// LATIN SMALL LETTER I (U+0069)
string smallLetterI = "i";
// LATIN SMALL LETTER DOTLESS I (U+0131)
string smallLetterDotlessI = "\u0131";
// Add the three strings to the list.
list.Add(capitalLetterI);
list.Add(smallLetterI);
list.Add(smallLetterDotlessI);
// Display the original list order.
Display(list, "The original order of the list entries...");
// Sort the list using the invariant culture.
list.Sort(invCmp);
Display(list, "Invariant culture...");
list.Sort(invICCmp);
Display(list, "Invariant culture, ignore case...");
// Sort the list using the current culture.
Console.WriteLine("The current culture is \"{0}\".", thisCulture.Name);
list.Sort(currCmp);
Display(list, "Current culture...");
list.Sort(currICCmp);
Display(list, "Current culture, ignore case...");
// Sort the list using the ordinal value of the character code points.
list.Sort(ordCmp);
Display(list, "Ordinal...");
list.Sort(ordICCmp);
Display(list, "Ordinal, ignore case...");
// Sort the list using the Turkish culture, which treats LATIN SMALL LETTER
// DOTLESS I differently than LATIN SMALL LETTER I.
list.Sort(turkICComp);
Display(list, "Turkish culture, ignore case...");
}
public static void Display(List<string> lst, string title)
{
Char c;
int codePoint;
Console.WriteLine(title);
foreach (string s in lst)
{
c = s[0];
codePoint = Convert.ToInt32(c);
Console.WriteLine("0x{0:x}", codePoint);
}
Console.WriteLine();
}
}
/*
This code example produces the following results:
The original order of the list entries...
0x49
0x69
0x131
Invariant culture...
0x69
0x49
0x131
Invariant culture, ignore case...
0x49
0x69
0x131
The current culture is "en-US".
Current culture...
0x69
0x49
0x131
Current culture, ignore case...
0x49
0x69
0x131
Ordinal...
0x49
0x69
0x131
Ordinal, ignore case...
0x69
0x49
0x131
Turkish culture, ignore case...
0x131
0x49
0x69
*/
// This example demonstrates members of the
// System.StringComparer class.
open System
open System.Globalization
open System.Threading
let display (lst: ResizeArray<string>) title =
printfn $"%s{title}"
for s in lst do
let c = s[0]
let codePoint = Convert.ToInt32 c
printfn $"0x{codePoint:x}"
printfn ""
// Create a list of string.
let list = ResizeArray()
// Get the tr-TR (Turkish-Turkey) culture.
let turkish = CultureInfo "tr-TR"
// Get the culture that is associated with the current thread.
let thisCulture = Thread.CurrentThread.CurrentCulture
// Get the standard StringComparers.
let invCmp = StringComparer.InvariantCulture
let invICCmp = StringComparer.InvariantCultureIgnoreCase
let currCmp = StringComparer.CurrentCulture
let currICCmp = StringComparer.CurrentCultureIgnoreCase
let ordCmp = StringComparer.Ordinal
let ordICCmp = StringComparer.OrdinalIgnoreCase
// Create a StringComparer that uses the Turkish culture and ignores case.
let turkICComp = StringComparer.Create(turkish, true)
// Define three strings consisting of different versions of the letter I.
// LATIN CAPITAL LETTER I (U+0049)
let capitalLetterI = "I"
// LATIN SMALL LETTER I (U+0069)
let smallLetterI = "i"
// LATIN SMALL LETTER DOTLESS I (U+0131)
let smallLetterDotlessI = "\u0131"
// Add the three strings to the list.
list.Add capitalLetterI
list.Add smallLetterI
list.Add smallLetterDotlessI
// Display the original list order.
display list "The original order of the list entries..."
// Sort the list using the invariant culture.
list.Sort invCmp
display list "Invariant culture..."
list.Sort invICCmp
display list "Invariant culture, ignore case..."
// Sort the list using the current culture.
printfn $"The current culture is \"{thisCulture.Name}\"."
list.Sort currCmp
display list "Current culture..."
list.Sort currICCmp
display list "Current culture, ignore case..."
// Sort the list using the ordinal value of the character code points.
list.Sort ordCmp
display list "Ordinal..."
list.Sort ordICCmp
display list "Ordinal, ignore case..."
// Sort the list using the Turkish culture, which treats LATIN SMALL LETTER
// DOTLESS I differently than LATIN SMALL LETTER I.
list.Sort turkICComp
display list "Turkish culture, ignore case..."
(*
This code example produces the following results:
The original order of the list entries...
0x49
0x69
0x131
Invariant culture...
0x69
0x49
0x131
Invariant culture, ignore case...
0x49
0x69
0x131
The current culture is "en-US".
Current culture...
0x69
0x49
0x131
Current culture, ignore case...
0x49
0x69
0x131
Ordinal...
0x49
0x69
0x131
Ordinal, ignore case...
0x69
0x49
0x131
Turkish culture, ignore case...
0x131
0x49
0x69
*)
' This code example demonstrates members of the System.StringComparer class.
Imports System.Collections
Imports System.Collections.Generic
Imports System.Globalization
Imports System.Threading
Class Sample
Public Shared Sub Main()
' Create a list of string.
Dim list As New List(Of String)
' Get the tr-TR (Turkish-Turkey) culture.
Dim turkish As New CultureInfo("tr-TR")
' Get the culture that is associated with the current thread.
Dim thisCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
' Get the standard StringComparers.
Dim invCmp As StringComparer = StringComparer.InvariantCulture
Dim invICCmp As StringComparer = StringComparer.InvariantCultureIgnoreCase
Dim currCmp As StringComparer = StringComparer.CurrentCulture
Dim currICCmp As StringComparer = StringComparer.CurrentCultureIgnoreCase
Dim ordCmp As StringComparer = StringComparer.Ordinal
Dim ordICCmp As StringComparer = StringComparer.OrdinalIgnoreCase
' Create a StringComparer that uses the Turkish culture and ignores case.
Dim turkICComp As StringComparer = StringComparer.Create(turkish, True)
' Define three strings consisting of different versions of the letter I.
' LATIN CAPITAL LETTER I (U+0049)
Dim capitalLetterI As String = "I"
' LATIN SMALL LETTER I (U+0069)
Dim smallLetterI As String = "i"
' LATIN SMALL LETTER DOTLESS I (U+0131)
Dim smallLetterDotlessI As String = "ı"
' Add the three strings to the list.
list.Add(capitalLetterI)
list.Add(smallLetterI)
list.Add(smallLetterDotlessI)
' Display the original list order.
Display(list, "The original order of the list entries...")
' Sort the list using the invariant culture.
list.Sort(invCmp)
Display(list, "Invariant culture...")
list.Sort(invICCmp)
Display(list, "Invariant culture, ignore case...")
' Sort the list using the current culture.
Console.WriteLine("The current culture is ""{0}"".", thisCulture.Name)
list.Sort(currCmp)
Display(list, "Current culture...")
list.Sort(currICCmp)
Display(list, "Current culture, ignore case...")
' Sort the list using the ordinal value of the character code points.
list.Sort(ordCmp)
Display(list, "Ordinal...")
list.Sort(ordICCmp)
Display(list, "Ordinal, ignore case...")
' Sort the list using the Turkish culture, which treats LATIN SMALL LETTER
' DOTLESS I differently than LATIN SMALL LETTER I.
list.Sort(turkICComp)
Display(list, "Turkish culture, ignore case...")
End Sub
Public Shared Sub Display(ByVal lst As List(Of String), ByVal title As String)
Dim c As Char
Dim s As String
Dim codePoint As Integer
Console.WriteLine(title)
For Each s In lst
c = s(0)
codePoint = Convert.ToInt32(c)
Console.WriteLine("0x{0:x}", codePoint)
Next s
Console.WriteLine()
End Sub
End Class
'This code example produces the following results:
'
'The original order of the list entries...
'0x49
'0x69
'0x131
'
'Invariant culture...
'0x69
'0x49
'0x131
'
'Invariant culture, ignore case...
'0x49
'0x69
'0x131
'
'The current culture is "en-US".
'Current culture...
'0x69
'0x49
'0x131
'
'Current culture, ignore case...
'0x49
'0x69
'0x131
'
'Ordinal...
'0x49
'0x69
'0x131
'
'Ordinal, ignore case...
'0x69
'0x49
'0x131
'
'Turkish culture, ignore case...
'0x131
'0x49
'0x69
'
Uwagi
Zwrócony StringComparer przez Ordinal właściwość wykonuje proste porównanie bajtów, które jest niezależne od języka. Jest to najbardziej odpowiednie podczas porównywania ciągów generowanych programowo lub porównywania zasobów wrażliwych na wielkość liter, takich jak hasła.
Właściwość Ordinal faktycznie zwraca wystąpienie anonimowej klasy pochodzącej StringComparer z klasy .