String.IndexOfAny Método

Origem:

String.Searching.cs

Origem:

String.Searching.cs

Origem:

String.Searching.cs

public:
 int IndexOfAny(cli::array <char> ^ anyOf);

public int IndexOfAny (char[] anyOf);

member this.IndexOfAny : char[] -> int

Public Function IndexOfAny (anyOf As Char()) As Integer

Parâmetros

Retornos

A posição do índice baseado em zero da primeira ocorrência nessa instância em que um caractere em anyOf foi encontrado; -1, se nenhum caractere em anyOf foi encontrado.

Exceções

Exemplos

O exemplo a seguir localiza a primeira vogal em uma cadeia de caracteres.

using System;

public class Example
{
   public static void Main()
   {
      char[] chars = { 'a', 'e', 'i', 'o', 'u', 'y', 
                       'A', 'E', 'I', 'O', 'U', 'Y' };
      String s = "The long and winding road...";
      Console.WriteLine("The first vowel in \n   {0}\nis found at position {1}", 
                        s, s.IndexOfAny(chars) + 1);                         
   }
}
// The example displays the following output:
//       The first vowel in
//          The long and winding road...
//       is found at position 3

let chars = [| 'a'; 'e'; 'i'; 'o'; 'u'; 'y'
               'A'; 'E'; 'I'; 'O'; 'U'; 'Y' |]
let s = "The long and winding road..."
printfn $"The first vowel in \n   {s}\nis found at position {s.IndexOfAny chars + 1}"
// The example displays the following output:
//       The first vowel in
//          The long and winding road...
//       is found at position 3

Module Example
   Public Sub Main()
      Dim chars() As Char = { "a"c, "e"c, "i"c, "o"c, "u"c, "y"c, 
                              "A"c, "E"c, "I"c, "O"c, "U"c, "Y"c }
      Dim s As String = "The long and winding road..."
      Console.WriteLine("The first vowel in {2}   {0}{2}is found at position {1}", 
                        s, s.IndexOfAny(chars) + 1, vbCrLf)                         
   End Sub
End Module
' The example displays the following output:
'       The first vowel in
'          The long and winding road...
'       is found at position 3

Comentários

A numeração de índice começa do zero.

A pesquisa de anyOf diferencia maiúsculas de minúsculas. Se anyOf for uma matriz vazia, o método encontrará uma correspondência no início da cadeia de caracteres (ou seja, no índice zero).

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. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.IndexOf, 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.

Confira também

• IndexOf(Char)
• LastIndexOf(Char)
• LastIndexOfAny(Char[])

Origem:

String.Searching.cs

Origem:

String.Searching.cs

Origem:

String.Searching.cs

public:
 int IndexOfAny(cli::array <char> ^ anyOf, int startIndex);

public int IndexOfAny (char[] anyOf, int startIndex);

member this.IndexOfAny : char[] * int -> int

Public Function IndexOfAny (anyOf As Char(), startIndex As Integer) As Integer

Parâmetros

Retornos

A posição do índice baseado em zero da primeira ocorrência nessa instância em que um caractere em anyOf foi encontrado; -1, se nenhum caractere em anyOf foi encontrado.

Exceções

Exemplos

O exemplo a seguir localiza o índice da ocorrência de qualquer caractere da cadeia de caracteres "is" dentro de uma subcadeia de caracteres de outra cadeia de caracteres.

// Sample for String::IndexOfAny(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 / 2;
   Console::WriteLine();
   Console::WriteLine( "The first character occurrence from position {0} to {1}.", start, str->Length - 1 );
   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->IndexOfAny( anyOf, start );
   if ( at > -1 )
      Console::Write( at );
   else
      Console::Write( "(not found)" );

   Console::WriteLine();
}

/*

The first character occurrence from position 33 to 66.
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: 49

*/

// Sample for String.IndexOfAny(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/2;
    Console.WriteLine();
    Console.WriteLine("The first character occurrence from position {0} to {1}.",
                           start, str.Length-1);
    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.IndexOfAny(anyOf, start);
    if (at > -1)
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.WriteLine();
    }
}
/*

The first character occurrence from position 33 to 66.
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: 49

*/

// Sample for String.IndexOfAny(Char[], Int32)
open System

let br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
let br2 = "0123456789012345678901234567890123456789012345678901234567890123456"
let str = "Now is the time for all good men to come to the aid of their party."
let target = "is"
let anyOf = target.ToCharArray()

let start = str.Length/2
printfn $"\nThe first character occurrence from position {start} to {str.Length - 1}."
printfn $"{br1}{Environment.NewLine}{br2}{Environment.NewLine}{str}{Environment.NewLine}"
printf $"A character in '{target}' occurs at position: "

let at = str.IndexOfAny(anyOf, start)
if at > -1 then
    printfn $"{at}"
else
    printfn "(not found)"
(*

The first character occurrence from position 33 to 66.
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: 49

*)

' Sample for String.IndexOfAny(Char[], Int32)
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 / 2
      Console.WriteLine()
      Console.WriteLine("Search for a character occurrence from position {0} to {1}.", _
                           start, str.Length - 1)
      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.IndexOfAny(anyOf, start)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.WriteLine()
   End Sub
End Class
'
'
'Search for a character occurrence from position 33 to 66.
'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: 49
'

Comentários

A numeração de índice começa do zero. O startIndex parâmetro pode variar de 0 a um menor que o comprimento da instância de cadeia de caracteres.

A pesquisa varia de startIndex até o final da cadeia de caracteres.

A pesquisa de anyOf diferencia maiúsculas de minúsculas.

Este método executa uma pesquisa ordinal (insensível à cultura), onde um caractere só é considerado equivalente a um outro caractere caso o valor escalar Unicode seja o mesmo. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.IndexOf, 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.

Confira também

• Char
• Int32
• Array
• IndexOf(Char)
• LastIndexOf(Char)
• LastIndexOfAny(Char[])

Origem:

String.Searching.cs

Origem:

String.Searching.cs

Origem:

String.Searching.cs

public:
 int IndexOfAny(cli::array <char> ^ anyOf, int startIndex, int count);

public int IndexOfAny (char[] anyOf, int startIndex, int count);

member this.IndexOfAny : char[] * int * int -> int

Public Function IndexOfAny (anyOf As Char(), startIndex As Integer, count As Integer) As Integer

Parâmetros

Retornos

A posição do índice baseado em zero da primeira ocorrência nessa instância em que um caractere em anyOf foi encontrado; -1, se nenhum caractere em anyOf foi encontrado.

Exceções

Exemplos

O exemplo a seguir localiza o índice da ocorrência de qualquer caractere da cadeia de caracteres "aid" dentro de uma subcadeia de caracteres de outra cadeia de caracteres.

// Sample for String::IndexOfAny(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) / 3;
   count = (str->Length - 1) / 4;
   Console::WriteLine();
   Console::WriteLine( "The first 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->IndexOfAny( anyOf, start, count );
   if ( at > -1 )
      Console::Write( at );
   else
      Console::Write( "(not found)" );

   Console::WriteLine();
}

/*

The first character occurrence from position 22 for 16 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.IndexOfAny(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)/3;
    count = (str.Length-1)/4;
    Console.WriteLine();
    Console.WriteLine("The first 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.IndexOfAny(anyOf, start, count);
    if (at > -1)
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.WriteLine();
    }
}
/*

The first character occurrence from position 22 for 16 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.IndexOfAny(Char[], Int32, Int32)
open System

let br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
let br2 = "0123456789012345678901234567890123456789012345678901234567890123456"
let str = "Now is the time for all good men to come to the aid of their party."
let target = "aid"
let anyOf = target.ToCharArray()

let start = (str.Length - 1) / 3
let count = (str.Length - 1) / 4
printfn $"\nThe first character occurrence from position {start} for {count} characters."
printfn $"{br1}{Environment.NewLine}{br2}{Environment.NewLine}{str}{Environment.NewLine}"
printf $"A character in '{target}' occurs at position: "

let at = str.IndexOfAny(anyOf, start, count)
if at > -1 then
    printfn $"{at}"
else
    printfn "(not found)"
(*

The first character occurrence from position 22 for 16 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.IndexOfAny(Char[], Int32, Int32)
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) / 3
      count =(str.Length - 1) / 4
      Console.WriteLine()
      Console.WriteLine("The first 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.IndexOfAny(anyOf, start, count)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.WriteLine()
   End Sub
End Class
'
'The first character occurrence from position 22 for 16 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 pesquisa começa em startIndex e continua em startIndex + count -1. O caractere em startIndex + count não está incluído na pesquisa.

A numeração de índice começa do zero. O startIndex parâmetro pode variar de 0 a um menor que o comprimento da instância de cadeia de caracteres.

A pesquisa de anyOf diferencia maiúsculas de minúsculas.

Este método executa uma pesquisa ordinal (insensível à cultura), onde um caractere só é considerado equivalente a um outro caractere caso o valor escalar Unicode seja o mesmo. Para executar uma pesquisa sensível à cultura, use o método CompareInfo.IndexOf, 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.

Confira também

• Char
• Int32
• Array
• IndexOf(Char)
• LastIndexOf(Char)
• LastIndexOfAny(Char[])