String.LastIndexOfAny String.LastIndexOfAny String.LastIndexOfAny String.LastIndexOfAny Method

Definição

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. O método retorna -1 caso os caracteres na matriz não sejam encontrados nessa instância.The method returns -1 if the characters in the array are not found in this instance.

Sobrecargas

LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32)

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. A pesquisa começa em uma posição de caractere especificada e continua até o início da cadeia de caracteres.The search starts at a specified character position and proceeds backward toward the beginning of the string.

LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32)

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. A pesquisa começa em uma posição de caractere especificada e continua para trás até o início da cadeia de caracteres de um número especificado de posições de caractere.The search starts at a specified character position and proceeds backward toward the beginning of the string for a specified number of character positions.

LastIndexOfAny(Char[]) LastIndexOfAny(Char[]) LastIndexOfAny(Char[]) LastIndexOfAny(Char[])

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array.

LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32) LastIndexOfAny(Char[], Int32)

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. A pesquisa começa em uma posição de caractere especificada e continua até o início da cadeia de caracteres.The search starts at a specified character position and proceeds backward toward the beginning of the string.

public:
 int LastIndexOfAny(cli::array <char> ^ anyOf, int startIndex);
public int LastIndexOfAny (char[] anyOf, int startIndex);
member this.LastIndexOfAny : char[] * int -> int
Public Function LastIndexOfAny (anyOf As Char(), startIndex As Integer) As Integer

Parâmetros

anyOf
Char[]

Uma matriz de caracteres Unicode que contém um ou mais caracteres a serem buscados.A Unicode character array containing one or more characters to seek.

startIndex
Int32 Int32 Int32 Int32

A posição inicial da pesquisa.The search starting position. A pesquisa continua de startIndex até o início dessa instância.The search proceeds from startIndex toward the beginning of this instance.

Retornos

A posição do índice da última ocorrência nessa instância em que algum caractere em anyOf foi encontrado, -1, se nenhum caractere em anyOf tiver sido encontrado ou se a instância atual for igual a Empty.The index position of the last occurrence in this instance where any character in anyOf was found; -1 if no character in anyOf was found or if the current instance equals Empty.

Exceções

A instância atual não é igual a Empty e startIndex especifica uma posição que não está dentro dessa instância.The current instance does not equal Empty, and startIndex specifies a position that is not within this instance.

Exemplos

O exemplo a seguir localiza o índice da última ocorrência de qualquer caractere na cadeia de caracteres "é" dentro de uma subcadeia de caracteres de outra cadeia de caracteres.The following example finds the index of the last occurrence of any character in the string "is" within a substring of another string.

// Sample for String::LastIndexOfAny(Char, Int32)
using namespace System;
int main()
{
   String^ br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
   String^ br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
   String^ str = "Now is the time for all good men to come to the aid of their party.";
   int start;
   int at;
   String^ target = "is";
   array<Char>^anyOf = target->ToCharArray();
   start = (str->Length - 1) / 2;
   Console::WriteLine( "The last character occurrence  from position {0} to 0.", start );
   Console::WriteLine( "{1}{0}{2}{0}{3}{0}", Environment::NewLine, br1, br2, str );
   Console::Write( "A character in '{0}' occurs at position: ", target );
   at = str->LastIndexOfAny( anyOf, start );
   if ( at > -1 )
      Console::Write( at );
   else
      Console::Write( "(not found)" );

   Console::Write( "{0}{0}{0}", Environment::NewLine );
}

/*
This example produces the following results:
The last character occurrence  from position 33 to 0.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'is' occurs at position: 12


*/
// Sample for String.LastIndexOfAny(Char[], Int32)
using System;

class Sample {
    public static void Main() {

    string br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
    string br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
    string str = "Now is the time for all good men to come to the aid of their party.";
    int start;
    int at;
    string target = "is";
    char[] anyOf = target.ToCharArray();

    start = (str.Length-1)/2;
    Console.WriteLine("The last character occurrence  from position {0} to 0.", start);
    Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str);
    Console.Write("A character in '{0}' occurs at position: ", target);

    at = str.LastIndexOfAny(anyOf, start);
    if (at > -1) 
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.Write("{0}{0}{0}", Environment.NewLine);
    }
}
/*
This example produces the following results:
The last character occurrence  from position 33 to 0.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'is' occurs at position: 12


*/
' Sample for String.LastIndexOfAny(Char[], Int32)
Imports System
 _

Class Sample
   
   Public Shared Sub Main()
      
      Dim br1 As String = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
      Dim br2 As String = "0123456789012345678901234567890123456789012345678901234567890123456"
      Dim str As String = "Now is the time for all good men to come to the aid of their party."
      Dim start As Integer
      Dim at As Integer
      Dim target As String = "is"
      Dim anyOf As Char() = target.ToCharArray()
      
      start =(str.Length - 1) / 2
      Console.WriteLine("The last character occurrence  from position {0} to 0.", start)
      Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str)
      Console.Write("A character in '{0}' occurs at position: ", target)
      
      at = str.LastIndexOfAny(anyOf, start)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.Write("{0}{0}{0}", Environment.NewLine)
   End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'The last character occurrence  from position 33 to 0.
'0----+----1----+----2----+----3----+----4----+----5----+----6----+-
'0123456789012345678901234567890123456789012345678901234567890123456
'Now is the time for all good men to come to the aid of their party.
'
'A character in 'is' occurs at position: 12
'
'
'

Comentários

A numeração de índice começa do zero.Index numbering starts from zero.

Esse método começa a procurar na startIndex de caracteres dessa instância e continua para trás até o início até um caractere na posição de anyOf for encontrado ou a posição do primeiro caractere foi examinada.This method begins searching at the startIndex character position of this instance and proceeds backward toward the beginning until either a character in anyOf is found or the first character position has been examined. A pesquisa diferencia maiúsculas de minúsculas.The search is case-sensitive.

Este método executa uma pesquisa ordinal (insensível à cultura), onde um caractere só é considerado equivalente a um outro caractere caso os valores escalares Unicode sejam os mesmos.This method performs an ordinal (culture-insensitive) search, where a character is considered equivalent to another character only if their Unicode scalar values are the same. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.LastIndexOf, em que um valor escalar Unicode representando um caractere pré-composto como a ligadura "Æ" (U+00C6) pode ser considerado equivalente a qualquer ocorrência dos componentes do caractere na sequência correta, como "AE" (U+0041, U+0045), dependendo da cultura.To perform a culture-sensitive search, use the CompareInfo.LastIndexOf method, where a Unicode scalar value representing a precomposed character, such as the ligature "Æ" (U+00C6), might be considered equivalent to any occurrence of the character's components in the correct sequence, such as "AE" (U+0041, U+0045), depending on the culture.

Veja também

LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32) LastIndexOfAny(Char[], Int32, Int32)

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. A pesquisa começa em uma posição de caractere especificada e continua para trás até o início da cadeia de caracteres de um número especificado de posições de caractere.The search starts at a specified character position and proceeds backward toward the beginning of the string for a specified number of character positions.

public:
 int LastIndexOfAny(cli::array <char> ^ anyOf, int startIndex, int count);
public int LastIndexOfAny (char[] anyOf, int startIndex, int count);
member this.LastIndexOfAny : char[] * int * int -> int
Public Function LastIndexOfAny (anyOf As Char(), startIndex As Integer, count As Integer) As Integer

Parâmetros

anyOf
Char[]

Uma matriz de caracteres Unicode que contém um ou mais caracteres a serem buscados.A Unicode character array containing one or more characters to seek.

startIndex
Int32 Int32 Int32 Int32

A posição inicial da pesquisa.The search starting position. A pesquisa continua de startIndex até o início dessa instância.The search proceeds from startIndex toward the beginning of this instance.

count
Int32 Int32 Int32 Int32

O número de posições de caractere a serem examinadas.The number of character positions to examine.

Retornos

A posição do índice da última ocorrência nessa instância em que algum caractere em anyOf foi encontrado, -1, se nenhum caractere em anyOf tiver sido encontrado ou se a instância atual for igual a Empty.The index position of the last occurrence in this instance where any character in anyOf was found; -1 if no character in anyOf was found or if the current instance equals Empty.

Exceções

A instância atual não é igual a Empty e count ou startIndex é negativo.The current instance does not equal Empty, and count or startIndex is negative.

- ou --or- A instância atual não é igual a Empty e startIndex menos count + 1 é menor que zero.The current instance does not equal Empty, and startIndex minus count + 1 is less than zero.

Exemplos

O exemplo a seguir localiza o índice da última ocorrência de qualquer caractere na "Ajuda" cadeia de caracteres dentro de uma subcadeia de caracteres de outra cadeia de caracteres.The following example finds the index of the last occurrence of any character in the string "aid" within a substring of another string.

// Sample for String::LastIndexOfAny(Char[], Int32, Int32)
using namespace System;
int main()
{
   String^ br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
   String^ br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
   String^ str = "Now is the time for all good men to come to the aid of their party.";
   int start;
   int at;
   int count;
   String^ target = "aid";
   array<Char>^anyOf = target->ToCharArray();
   start = ((str->Length - 1) * 2) / 3;
   count = (str->Length - 1) / 3;
   Console::WriteLine( "The last character occurrence from position {0} for {1} characters.", start, count );
   Console::WriteLine( "{1}{0}{2}{0}{3}{0}", Environment::NewLine, br1, br2, str );
   Console::Write( "A character in '{0}' occurs at position: ", target );
   at = str->LastIndexOfAny( anyOf, start, count );
   if ( at > -1 )
      Console::Write( at );
   else
      Console::Write( "(not found)" );

   Console::Write( "{0}{0}{0}", Environment::NewLine );
}

/*
This example produces the following results:
The last character occurrence from position 44 for 22 characters.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'aid' occurs at position: 27
*/
// Sample for String.LastIndexOfAny(Char[], Int32, Int32)
using System;

class Sample {
    public static void Main() {

    string br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
    string br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
    string str = "Now is the time for all good men to come to the aid of their party.";
    int start;
    int at;
    int count;
    string target = "aid";
    char[] anyOf = target.ToCharArray();

    start = ((str.Length-1)*2)/3;
    count = (str.Length-1)/3;
    Console.WriteLine("The last character occurrence from position {0} for {1} characters.", start, count);
    Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str);
    Console.Write("A character in '{0}' occurs at position: ", target);

    at = str.LastIndexOfAny(anyOf, start, count);
    if (at > -1) 
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.Write("{0}{0}{0}", Environment.NewLine);
    }
}
/*
This example produces the following results:
The last character occurrence from position 44 for 22 characters.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'aid' occurs at position: 27
*/
' Sample for String.LastIndexOfAny(Char[], Int32, Int32)
Imports System
 _

Class Sample
   
   Public Shared Sub Main()
      
      Dim br1 As String = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
      Dim br2 As String = "0123456789012345678901234567890123456789012345678901234567890123456"
      Dim str As String = "Now is the time for all good men to come to the aid of their party."
      Dim start As Integer
      Dim at As Integer
      Dim count As Integer
      Dim target As String = "aid"
      Dim anyOf As Char() = target.ToCharArray()
      
      start =(str.Length - 1) * 2 / 3
      count =(str.Length - 1) / 3
      Console.WriteLine("The last character occurrence from position {0} for {1} characters.", start, count)
      Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str)
      Console.Write("A character in '{0}' occurs at position: ", target)
      
      at = str.LastIndexOfAny(anyOf, start, count)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.Write("{0}{0}{0}", Environment.NewLine)
   End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'The last character occurrence from position 44 for 22 characters.
'0----+----1----+----2----+----3----+----4----+----5----+----6----+-
'0123456789012345678901234567890123456789012345678901234567890123456
'Now is the time for all good men to come to the aid of their party.
'
'A character in 'aid' occurs at position: 27
'

Comentários

A numeração de índice começa do zero.Index numbering starts from zero.

Esse método começa a procurar na startIndex de caracteres dessa instância e continua para trás até o início até um caractere na posição do anyOf for encontrado ou count foram examinadas posições de caractere.This method begins searching at the startIndex character position of this instance and proceeds backward toward the beginning until either a character in anyOf is found or count character positions have been examined. A pesquisa diferencia maiúsculas de minúsculas.The search is case-sensitive.

Este método executa uma pesquisa ordinal (insensível à cultura), onde um caractere só é considerado equivalente a um outro caractere caso os valores escalares Unicode sejam os mesmos.This method performs an ordinal (culture-insensitive) search, where a character is considered equivalent to another character only if their Unicode scalar values are the same. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.LastIndexOf, em que um valor escalar Unicode representando um caractere pré-composto como a ligadura "Æ" (U+00C6) pode ser considerado equivalente a qualquer ocorrência dos componentes do caractere na sequência correta, como "AE" (U+0041, U+0045), dependendo da cultura.To perform a culture-sensitive search, use the CompareInfo.LastIndexOf method, where a Unicode scalar value representing a precomposed character, such as the ligature "Æ" (U+00C6), might be considered equivalent to any occurrence of the character's components in the correct sequence, such as "AE" (U+0041, U+0045), depending on the culture.

Veja também

LastIndexOfAny(Char[]) LastIndexOfAny(Char[]) LastIndexOfAny(Char[]) LastIndexOfAny(Char[])

Relata a posição de índice com base em zero da última ocorrência; neste caso, de um ou mais caracteres especificados em uma matriz Unicode.Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array.

public:
 int LastIndexOfAny(cli::array <char> ^ anyOf);
public int LastIndexOfAny (char[] anyOf);
member this.LastIndexOfAny : char[] -> int
Public Function LastIndexOfAny (anyOf As Char()) As Integer

Parâmetros

anyOf
Char[]

Uma matriz de caracteres Unicode que contém um ou mais caracteres a serem buscados.A Unicode character array containing one or more characters to seek.

Retornos

A posição do índice da última ocorrência nessa instância em que um caractere em anyOf foi encontrado; -1, se nenhum caractere em anyOf foi encontrado.The index position of the last occurrence in this instance where any character in anyOf was found; -1 if no character in anyOf was found.

Exceções

Exemplos

O exemplo a seguir localiza o índice da última ocorrência de qualquer caractere na cadeia de caracteres "é" dentro de outra cadeia de caracteres.The following example finds the index of the last occurrence of any character in the string "is" within another string.

// Sample for String::LastIndexOfAny(Char[])
using namespace System;
int main()
{
   String^ br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
   String^ br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
   String^ str = "Now is the time for all good men to come to the aid of their party.";
   int start;
   int at;
   String^ target = "is";
   array<Char>^anyOf = target->ToCharArray();
   start = str->Length - 1;
   Console::WriteLine( "The last character occurrence  from position {0} to 0.", start );
   Console::WriteLine( "{1}{0}{2}{0}{3}{0}", Environment::NewLine, br1, br2, str );
   Console::Write( "A character in '{0}' occurs at position: ", target );
   at = str->LastIndexOfAny( anyOf );
   if ( at > -1 )
      Console::Write( at );
   else
      Console::Write( "(not found)" );

   Console::Write( "{0}{0}{0}", Environment::NewLine );
}

/*
This example produces the following results:
The last character occurrence  from position 66 to 0.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'is' occurs at position: 58


*/
// Sample for String.LastIndexOfAny(Char[])
using System;

class Sample {
    public static void Main() {

    string br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
    string br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
    string str = "Now is the time for all good men to come to the aid of their party.";
    int start;
    int at;
    string target = "is";
    char[] anyOf = target.ToCharArray();

    start = str.Length-1;
    Console.WriteLine("The last character occurrence  from position {0} to 0.", start);
    Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str);
    Console.Write("A character in '{0}' occurs at position: ", target);

    at = str.LastIndexOfAny(anyOf);
    if (at > -1) 
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.Write("{0}{0}{0}", Environment.NewLine);
    }
}
/*
This example produces the following results:
The last character occurrence  from position 66 to 0.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'is' occurs at position: 58


*/
' Sample for String.LastIndexOfAny(Char[])
Imports System
 _

Class Sample
   
   Public Shared Sub Main()
      
      Dim br1 As String = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
      Dim br2 As String = "0123456789012345678901234567890123456789012345678901234567890123456"
      Dim str As String = "Now is the time for all good men to come to the aid of their party."
      Dim start As Integer
      Dim at As Integer
      Dim target As String = "is"
      Dim anyOf As Char() = target.ToCharArray()
      
      start = str.Length - 1
      Console.WriteLine("The last character occurrence  from position {0} to 0.", start)
      Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str)
      Console.Write("A character in '{0}' occurs at position: ", target)
      
      at = str.LastIndexOfAny(anyOf)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.Write("{0}{0}{0}", Environment.NewLine)
   End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'The last character occurrence  from position 66 to 0.
'0----+----1----+----2----+----3----+----4----+----5----+----6----+-
'0123456789012345678901234567890123456789012345678901234567890123456
'Now is the time for all good men to come to the aid of their party.
'
'A character in 'is' occurs at position: 58
'
'
'

Comentários

A numeração de índice começa do zero.Index numbering starts from zero.

Esse método começa a procurar na última posição de caracteres dessa instância e continua para trás até o início até um caractere em anyOf for encontrado ou a posição do primeiro caractere foi examinada.This method begins searching at the last character position of this instance and proceeds backward toward the beginning until either a character in anyOf is found or the first character position has been examined. A pesquisa diferencia maiúsculas de minúsculas.The search is case-sensitive.

Este método executa uma pesquisa ordinal (insensível à cultura), onde um caractere só é considerado equivalente a um outro caractere caso os valores escalares Unicode sejam os mesmos.This method performs an ordinal (culture-insensitive) search, where a character is considered equivalent to another character only if their Unicode scalar values are the same. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.LastIndexOf, em que um valor escalar Unicode representando um caractere pré-composto como a ligadura "Æ" (U+00C6) pode ser considerado equivalente a qualquer ocorrência dos componentes do caractere na sequência correta, como "AE" (U+0041, U+0045), dependendo da cultura.To perform a culture-sensitive search, use the CompareInfo.LastIndexOf method, where a Unicode scalar value representing a precomposed character, such as the ligature "Æ" (U+00C6), might be considered equivalent to any occurrence of the character's components in the correct sequence, such as "AE" (U+0041, U+0045), depending on the culture.

Veja também

Aplica-se a