Int64 Estrutura

Definição

public value class long : IComparable, IComparable<long>, IConvertible, IEquatable<long>, IFormattable

public value class long : IComparable<long>, IConvertible, IEquatable<long>, IParsable<long>, ISpanParsable<long>, IUtf8SpanParsable<long>, System::Numerics::IAdditionOperators<long, long, long>, System::Numerics::IAdditiveIdentity<long, long>, System::Numerics::IBinaryInteger<long>, System::Numerics::IBinaryNumber<long>, System::Numerics::IBitwiseOperators<long, long, long>, System::Numerics::IComparisonOperators<long, long, bool>, System::Numerics::IDecrementOperators<long>, System::Numerics::IDivisionOperators<long, long, long>, System::Numerics::IEqualityOperators<long, long, bool>, System::Numerics::IIncrementOperators<long>, System::Numerics::IMinMaxValue<long>, System::Numerics::IModulusOperators<long, long, long>, System::Numerics::IMultiplicativeIdentity<long, long>, System::Numerics::IMultiplyOperators<long, long, long>, System::Numerics::INumber<long>, System::Numerics::INumberBase<long>, System::Numerics::IShiftOperators<long, int, long>, System::Numerics::ISignedNumber<long>, System::Numerics::ISubtractionOperators<long, long, long>, System::Numerics::IUnaryNegationOperators<long, long>, System::Numerics::IUnaryPlusOperators<long, long>

public value class long : IComparable, IComparable<long>, IConvertible, IEquatable<long>, ISpanFormattable

public value class long : IComparable<long>, IConvertible, IEquatable<long>, IParsable<long>, ISpanParsable<long>, System::Numerics::IAdditionOperators<long, long, long>, System::Numerics::IAdditiveIdentity<long, long>, System::Numerics::IBinaryInteger<long>, System::Numerics::IBinaryNumber<long>, System::Numerics::IBitwiseOperators<long, long, long>, System::Numerics::IComparisonOperators<long, long, bool>, System::Numerics::IDecrementOperators<long>, System::Numerics::IDivisionOperators<long, long, long>, System::Numerics::IEqualityOperators<long, long, bool>, System::Numerics::IIncrementOperators<long>, System::Numerics::IMinMaxValue<long>, System::Numerics::IModulusOperators<long, long, long>, System::Numerics::IMultiplicativeIdentity<long, long>, System::Numerics::IMultiplyOperators<long, long, long>, System::Numerics::INumber<long>, System::Numerics::INumberBase<long>, System::Numerics::IShiftOperators<long, int, long>, System::Numerics::ISignedNumber<long>, System::Numerics::ISubtractionOperators<long, long, long>, System::Numerics::IUnaryNegationOperators<long, long>, System::Numerics::IUnaryPlusOperators<long, long>

public value class long : IComparable, IConvertible, IFormattable

public value class long : IComparable, IComparable<long>, IEquatable<long>, IFormattable

public struct Int64 : IComparable, IComparable<long>, IConvertible, IEquatable<long>, IFormattable

public readonly struct Int64 : IComparable<long>, IConvertible, IEquatable<long>, IParsable<long>, ISpanParsable<long>, IUtf8SpanParsable<long>, System.Numerics.IAdditionOperators<long,long,long>, System.Numerics.IAdditiveIdentity<long,long>, System.Numerics.IBinaryInteger<long>, System.Numerics.IBinaryNumber<long>, System.Numerics.IBitwiseOperators<long,long,long>, System.Numerics.IComparisonOperators<long,long,bool>, System.Numerics.IDecrementOperators<long>, System.Numerics.IDivisionOperators<long,long,long>, System.Numerics.IEqualityOperators<long,long,bool>, System.Numerics.IIncrementOperators<long>, System.Numerics.IMinMaxValue<long>, System.Numerics.IModulusOperators<long,long,long>, System.Numerics.IMultiplicativeIdentity<long,long>, System.Numerics.IMultiplyOperators<long,long,long>, System.Numerics.INumber<long>, System.Numerics.INumberBase<long>, System.Numerics.IShiftOperators<long,int,long>, System.Numerics.ISignedNumber<long>, System.Numerics.ISubtractionOperators<long,long,long>, System.Numerics.IUnaryNegationOperators<long,long>, System.Numerics.IUnaryPlusOperators<long,long>

public readonly struct Int64 : IComparable, IComparable<long>, IConvertible, IEquatable<long>, IFormattable

public readonly struct Int64 : IComparable, IComparable<long>, IConvertible, IEquatable<long>, ISpanFormattable

public readonly struct Int64 : IComparable<long>, IConvertible, IEquatable<long>, IParsable<long>, ISpanParsable<long>, System.Numerics.IAdditionOperators<long,long,long>, System.Numerics.IAdditiveIdentity<long,long>, System.Numerics.IBinaryInteger<long>, System.Numerics.IBinaryNumber<long>, System.Numerics.IBitwiseOperators<long,long,long>, System.Numerics.IComparisonOperators<long,long,bool>, System.Numerics.IDecrementOperators<long>, System.Numerics.IDivisionOperators<long,long,long>, System.Numerics.IEqualityOperators<long,long,bool>, System.Numerics.IIncrementOperators<long>, System.Numerics.IMinMaxValue<long>, System.Numerics.IModulusOperators<long,long,long>, System.Numerics.IMultiplicativeIdentity<long,long>, System.Numerics.IMultiplyOperators<long,long,long>, System.Numerics.INumber<long>, System.Numerics.INumberBase<long>, System.Numerics.IShiftOperators<long,int,long>, System.Numerics.ISignedNumber<long>, System.Numerics.ISubtractionOperators<long,long,long>, System.Numerics.IUnaryNegationOperators<long,long>, System.Numerics.IUnaryPlusOperators<long,long>

[System.Serializable]
public struct Int64 : IComparable, IConvertible, IFormattable

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public struct Int64 : IComparable, IComparable<long>, IConvertible, IEquatable<long>, IFormattable

public struct Int64 : IComparable, IComparable<long>, IEquatable<long>, IFormattable

type int64 = struct
    interface IConvertible
    interface IFormattable

type int64 = struct
    interface IConvertible
    interface IFormattable
    interface IParsable<int64>
    interface ISpanFormattable
    interface ISpanParsable<int64>
    interface IUtf8SpanFormattable
    interface IUtf8SpanParsable<int64>
    interface IAdditionOperators<int64, int64, int64>
    interface IAdditiveIdentity<int64, int64>
    interface IBinaryInteger<int64>
    interface IBinaryNumber<int64>
    interface IBitwiseOperators<int64, int64, int64>
    interface IComparisonOperators<int64, int64, bool>
    interface IEqualityOperators<int64, int64, bool>
    interface IDecrementOperators<int64>
    interface IDivisionOperators<int64, int64, int64>
    interface IIncrementOperators<int64>
    interface IModulusOperators<int64, int64, int64>
    interface IMultiplicativeIdentity<int64, int64>
    interface IMultiplyOperators<int64, int64, int64>
    interface INumber<int64>
    interface INumberBase<int64>
    interface ISubtractionOperators<int64, int64, int64>
    interface IUnaryNegationOperators<int64, int64>
    interface IUnaryPlusOperators<int64, int64>
    interface IShiftOperators<int64, int, int64>
    interface IMinMaxValue<int64>
    interface ISignedNumber<int64>

type int64 = struct
    interface IConvertible
    interface ISpanFormattable
    interface IFormattable

type int64 = struct
    interface IConvertible
    interface IFormattable
    interface IParsable<int64>
    interface ISpanFormattable
    interface ISpanParsable<int64>
    interface IAdditionOperators<int64, int64, int64>
    interface IAdditiveIdentity<int64, int64>
    interface IBinaryInteger<int64>
    interface IBinaryNumber<int64>
    interface IBitwiseOperators<int64, int64, int64>
    interface IComparisonOperators<int64, int64, bool>
    interface IEqualityOperators<int64, int64, bool>
    interface IDecrementOperators<int64>
    interface IDivisionOperators<int64, int64, int64>
    interface IIncrementOperators<int64>
    interface IModulusOperators<int64, int64, int64>
    interface IMultiplicativeIdentity<int64, int64>
    interface IMultiplyOperators<int64, int64, int64>
    interface INumber<int64>
    interface INumberBase<int64>
    interface ISubtractionOperators<int64, int64, int64>
    interface IUnaryNegationOperators<int64, int64>
    interface IUnaryPlusOperators<int64, int64>
    interface IShiftOperators<int64, int, int64>
    interface IMinMaxValue<int64>
    interface ISignedNumber<int64>

type int64 = struct
    interface IConvertible
    interface IFormattable
    interface IParsable<int64>
    interface ISpanFormattable
    interface ISpanParsable<int64>
    interface IAdditionOperators<int64, int64, int64>
    interface IAdditiveIdentity<int64, int64>
    interface IBinaryInteger<int64>
    interface IBinaryNumber<int64>
    interface IBitwiseOperators<int64, int64, int64>
    interface IComparisonOperators<int64, int64, bool>
    interface IEqualityOperators<int64, int64, bool>
    interface IDecrementOperators<int64>
    interface IDivisionOperators<int64, int64, int64>
    interface IIncrementOperators<int64>
    interface IModulusOperators<int64, int64, int64>
    interface IMultiplicativeIdentity<int64, int64>
    interface IMultiplyOperators<int64, int64, int64>
    interface INumber<int64>
    interface INumberBase<int64>
    interface ISubtractionOperators<int64, int64, int64>
    interface IUnaryNegationOperators<int64, int64>
    interface IUnaryPlusOperators<int64, int64>
    interface IUtf8SpanFormattable
    interface IUtf8SpanParsable<int64>
    interface IShiftOperators<int64, int, int64>
    interface IMinMaxValue<int64>
    interface ISignedNumber<int64>

[<System.Serializable>]
type int64 = struct
    interface IFormattable
    interface IConvertible

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type int64 = struct
    interface IFormattable
    interface IConvertible

type int64 = struct
    interface IFormattable

Public Structure Int64
Implements IComparable, IComparable(Of Long), IConvertible, IEquatable(Of Long), IFormattable

Public Structure Int64
Implements IAdditionOperators(Of Long, Long, Long), IAdditiveIdentity(Of Long, Long), IBinaryInteger(Of Long), IBinaryNumber(Of Long), IBitwiseOperators(Of Long, Long, Long), IComparable(Of Long), IComparisonOperators(Of Long, Long, Boolean), IConvertible, IDecrementOperators(Of Long), IDivisionOperators(Of Long, Long, Long), IEqualityOperators(Of Long, Long, Boolean), IEquatable(Of Long), IIncrementOperators(Of Long), IMinMaxValue(Of Long), IModulusOperators(Of Long, Long, Long), IMultiplicativeIdentity(Of Long, Long), IMultiplyOperators(Of Long, Long, Long), INumber(Of Long), INumberBase(Of Long), IParsable(Of Long), IShiftOperators(Of Long, Integer, Long), ISignedNumber(Of Long), ISpanParsable(Of Long), ISubtractionOperators(Of Long, Long, Long), IUnaryNegationOperators(Of Long, Long), IUnaryPlusOperators(Of Long, Long), IUtf8SpanParsable(Of Long)

Public Structure Int64
Implements IComparable, IComparable(Of Long), IConvertible, IEquatable(Of Long), ISpanFormattable

Public Structure Int64
Implements IAdditionOperators(Of Long, Long, Long), IAdditiveIdentity(Of Long, Long), IBinaryInteger(Of Long), IBinaryNumber(Of Long), IBitwiseOperators(Of Long, Long, Long), IComparable(Of Long), IComparisonOperators(Of Long, Long, Boolean), IConvertible, IDecrementOperators(Of Long), IDivisionOperators(Of Long, Long, Long), IEqualityOperators(Of Long, Long, Boolean), IEquatable(Of Long), IIncrementOperators(Of Long), IMinMaxValue(Of Long), IModulusOperators(Of Long, Long, Long), IMultiplicativeIdentity(Of Long, Long), IMultiplyOperators(Of Long, Long, Long), INumber(Of Long), INumberBase(Of Long), IParsable(Of Long), IShiftOperators(Of Long, Integer, Long), ISignedNumber(Of Long), ISpanParsable(Of Long), ISubtractionOperators(Of Long, Long, Long), IUnaryNegationOperators(Of Long, Long), IUnaryPlusOperators(Of Long, Long)

Public Structure Int64
Implements IComparable, IConvertible, IFormattable

Public Structure Int64
Implements IComparable, IComparable(Of Long), IEquatable(Of Long), IFormattable

Herança

Object

ValueType

Int64

Atributos

SerializableAttribute ComVisibleAttribute

Implementações

IComparable IComparable<Int64> IConvertible IEquatable<Int64> IFormattable IComparable<TSelf> IEquatable<TSelf> IParsable<Int64> IParsable<TSelf> ISpanFormattable ISpanParsable<Int64> ISpanParsable<TSelf> IUtf8SpanFormattable IUtf8SpanParsable<Int64> IUtf8SpanParsable<TSelf> IAdditionOperators<Int64,Int64,Int64> IAdditionOperators<TSelf,TSelf,TSelf> IAdditiveIdentity<Int64,Int64> IAdditiveIdentity<TSelf,TSelf> IBinaryInteger<Int64> IBinaryNumber<Int64> IBinaryNumber<TSelf> IBitwiseOperators<Int64,Int64,Int64> IBitwiseOperators<TSelf,TSelf,TSelf> IComparisonOperators<Int64,Int64,Boolean> IComparisonOperators<TSelf,TSelf,Boolean> IDecrementOperators<Int64> IDecrementOperators<TSelf> IDivisionOperators<Int64,Int64,Int64> IDivisionOperators<TSelf,TSelf,TSelf> IEqualityOperators<Int64,Int64,Boolean> IEqualityOperators<TSelf,TOther,TResult> IEqualityOperators<TSelf,TSelf,Boolean> IIncrementOperators<Int64> IIncrementOperators<TSelf> IMinMaxValue<Int64> IModulusOperators<Int64,Int64,Int64> IModulusOperators<TSelf,TSelf,TSelf> IMultiplicativeIdentity<Int64,Int64> IMultiplicativeIdentity<TSelf,TSelf> IMultiplyOperators<Int64,Int64,Int64> IMultiplyOperators<TSelf,TSelf,TSelf> INumber<Int64> INumber<TSelf> INumberBase<Int64> INumberBase<TSelf> IShiftOperators<Int64,Int32,Int64> IShiftOperators<TSelf,Int32,TSelf> ISignedNumber<Int64> ISubtractionOperators<Int64,Int64,Int64> ISubtractionOperators<TSelf,TSelf,TSelf> IUnaryNegationOperators<Int64,Int64> IUnaryNegationOperators<TSelf,TSelf> IUnaryPlusOperators<Int64,Int64> IUnaryPlusOperators<TSelf,TSelf>

Comentários

Int64 é um tipo de valor imutável que representa inteiros assinados com valores que variam de 9.223.372.036.854.775.808 negativos (que é representado pela Int64.MinValue constante) até 9.223.372.036.854.775.807 positivos (que é representado pela Int64.MaxValue constante). O .NET também inclui um tipo de valor inteiro de 64 bits sem sinal, UInt64que representa valores que variam de 0 a 18.446.744.073.709.551.615.

Criar uma instância de um valor Int64

Você pode instanciar um valor Int64 de diversas maneiras:

• Você pode declarar uma Int64 variável e atribuir a ela um valor inteiro literal que está dentro do intervalo do Int64 tipo de dados. O exemplo a seguir declara duas variáveis de Int64 e atribui-lhes valores dessa maneira.

  long number1 = -64301728;
  long number2 = 255486129307;
  

  let number1 = -64301728L
  let number2 = 255486129307L
  

  Dim number1 As Long = -64301728
  Dim number2 As Long = 255486129307
  

• Você pode atribuir o valor de um tipo integral cujo intervalo é um subconjunto do Int64 tipo. Essa é uma conversão de ampliação que não requer um operador de 'cast' em C# ou um método de conversão no Visual Basic. Em F#, somente o Int32 tipo pode ser ampliado automaticamente.

  sbyte value1 = 124;
  short value2 = 1618;
  int value3 = Int32.MaxValue;
  
  long number1 = value1;
  long number2 = value2;
  long number3 = value3;
  

  let value1 = 124y
  let value2 = 1618s
  let value3 = Int32.MaxValue
  
  let number1 = int64 value1
  let number2 = int64 value2
  let number3: int64 = value3
  

  Dim value1 As SByte = 124
  Dim value2 As Int16 = 1618
  Dim value3 As Int32 = Int32.MaxValue
  
  Dim number1 As Long = value1
  Dim number2 As Long = value2
  Dim number3 As Long = value3
  

• Você pode atribuir o valor de um tipo numérico cujo alcance excede o do tipo Int64. Essa é uma conversão de redução, portanto, requer um operador de conversão em C# ou F# e um método de conversão no Visual Basic, caso Option Strict esteja ativado. Se o valor numérico for um Single, Doubleou Decimal valor que inclua um componente fracionário, o tratamento de sua parte fracionária dependerá do compilador executar a conversão. O exemplo a seguir executa conversões de restrição para atribuir vários valores numéricos a Int64 variáveis.

  ulong ulNumber = 163245617943825;
  try {
     long number1 = (long) ulNumber;
     Console.WriteLine(number1);
  }
  catch (OverflowException) {
     Console.WriteLine($"{ulNumber} is out of range of an Int64.");
  }
  
  double dbl2 = 35901.997;
  try {
     long number2 = (long) dbl2;
     Console.WriteLine(number2);
  }
  catch (OverflowException) {
     Console.WriteLine($"{dbl2} is out of range of an Int64.");
  }
  
  BigInteger bigNumber = (BigInteger) 1.63201978555e30;
  try {
     long number3 = (long) bigNumber;
     Console.WriteLine(number3);
  }
  catch (OverflowException) {
     Console.WriteLine($"{bigNumber} is out of range of an Int64.");
  }
  // The example displays the following output:
  //    163245617943825
  //    35902
  //    1,632,019,785,549,999,969,612,091,883,520 is out of range of an Int64.
  

  let ulNumber = 163245617943825uL
  try
      let number1 = int64 ulNumber
      printfn $"{number1}"
  with :? OverflowException ->
      printfn $"{ulNumber} is out of range of an Int64."
  
  let dbl2 = 35901.997
  try
      let number2 = int64 dbl2
      printfn $"{number2}"
  with :? OverflowException ->
      printfn $"{dbl2} is out of range of an Int64."
  
  let bigNumber = BigInteger 1.63201978555e30
  try
      let number3 = int64 bigNumber
      printfn $"{number3}"
  with :? OverflowException ->
      printfn $"{bigNumber} is out of range of an Int64."
  
  // The example displays the following output:
  //    163245617943825
  //    35902
  //    1,632,019,785,549,999,969,612,091,883,520 is out of range of an Int64.
  

  Dim ulNumber As ULong = 163245617943825
  Try
     Dim number1 As Long = CLng(ulNumber)
     Console.WriteLine(number1)
  Catch e As OverflowException
     Console.WriteLine("{0} is out of range of an Int64.", ulNumber)
  End Try
  
  Dim dbl2 As Double = 35901.997
  Try
     Dim number2 As Long = CLng(dbl2)
     Console.WriteLine(number2)
  Catch e As OverflowException
     Console.WriteLine("{0} is out of range of an Int64.", dbl2)
  End Try
     
  Dim bigNumber As BigInteger = 1.63201978555e30
  Try
     Dim number3 As Long = CLng(bigNumber)
     Console.WriteLine(number3)
  Catch e As OverflowException
     Console.WriteLine("{0:N0} is out of range of an Int64.", bigNumber)
  End Try    
  ' The example displays the following output:
  '    163245617943825
  '    35902
  '    1,632,019,785,549,999,969,612,091,883,520 is out of range of an Int64.
  

• Você pode chamar um método da Convert classe para converter qualquer tipo com suporte em um Int64 valor. Isso é possível porque Int64 dá suporte à interface IConvertible. O exemplo a seguir ilustra a conversão de uma matriz de valores Decimal para valores Int64.

  decimal[] values= { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
                      199.55m, 9214.16m, Decimal.MaxValue };
  long result;
  
  foreach (decimal value in values)
  {
     try {
        result = Convert.ToInt64(value);
        Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                          value.GetType().Name, value,
                          result.GetType().Name, result);
     }
     catch (OverflowException) {
        Console.WriteLine("{0} is outside the range of the Int64 type.",
                          value);
     }
  }
  // The example displays the following output:
  //    -79228162514264337593543950335 is outside the range of the Int64 type.
  //    Converted the Decimal value '-1034.23' to the Int64 value -1034.
  //    Converted the Decimal value '-12' to the Int64 value -12.
  //    Converted the Decimal value '0' to the Int64 value 0.
  //    Converted the Decimal value '147' to the Int64 value 147.
  //    Converted the Decimal value '199.55' to the Int64 value 200.
  //    Converted the Decimal value '9214.16' to the Int64 value 9214.
  //    79228162514264337593543950335 is outside the range of the Int64 type.
  

  let values = 
      [| Decimal.MinValue; -1034.23m; -12m; 0m; 147m
         199.55m; 9214.16m; Decimal.MaxValue |]
  
  for value in values do
      try
          let result = Convert.ToInt64 value
          printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
      with :? OverflowException ->
          printfn $"{value} is outside the range of the Int64 type."
  // The example displays the following output:
  //    -79228162514264337593543950335 is outside the range of the Int64 type.
  //    Converted the Decimal value '-1034.23' to the Int64 value -1034.
  //    Converted the Decimal value '-12' to the Int64 value -12.
  //    Converted the Decimal value '0' to the Int64 value 0.
  //    Converted the Decimal value '147' to the Int64 value 147.
  //    Converted the Decimal value '199.55' to the Int64 value 200.
  //    Converted the Decimal value '9214.16' to the Int64 value 9214.
  //    79228162514264337593543950335 is outside the range of the Int64 type.
  

  Dim values() As Decimal = { Decimal.MinValue, -1034.23d, -12d, 0d, 147d, _
                              199.55d, 9214.16d, Decimal.MaxValue }
  Dim result As Long
  
  For Each value As Decimal In values
     Try
        result = Convert.ToInt64(value)
        Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                          value.GetType().Name, value, _
                          result.GetType().Name, result)
     Catch e As OverflowException
        Console.WriteLine("{0} is outside the range of the Int64 type.", _
                          value)
     End Try
  Next
  ' The example displays the following output:
  '    -79228162514264337593543950335 is outside the range of the Int64 type.
  '    Converted the Decimal value '-1034.23' to the Int64 value -1034.
  '    Converted the Decimal value '-12' to the Int64 value -12.
  '    Converted the Decimal value '0' to the Int64 value 0.
  '    Converted the Decimal value '147' to the Int64 value 147.
  '    Converted the Decimal value '199.55' to the Int64 value 200.
  '    Converted the Decimal value '9214.16' to the Int64 value 9214.
  '    79228162514264337593543950335 is outside the range of the Int64 type.
  

• Você pode chamar o método Parse ou TryParse para converter a representação de cadeia de caracteres de um valor Int64 em um Int64. A cadeia de caracteres pode conter dígitos decimal ou hexadecimal. O exemplo a seguir ilustra a operação de análise usando uma cadeia de caracteres decimal e hexadecimal.

  string string1 = "244681903147";
  try {
     long number1 = Int64.Parse(string1);
     Console.WriteLine(number1);
  }
  catch (OverflowException) {
     Console.WriteLine($"'{string1}' is out of range of a 64-bit integer.");
  }
  catch (FormatException) {
     Console.WriteLine($"The format of '{string1}' is invalid.");
  }
  
  string string2 = "F9A3CFF0A";
  try {
     long number2 = Int64.Parse(string2,
                                System.Globalization.NumberStyles.HexNumber);
     Console.WriteLine(number2);
  }
  catch (OverflowException) {
     Console.WriteLine($"'{string2}' is out of range of a 64-bit integer.");
  }
  catch (FormatException) {
     Console.WriteLine($"The format of '{string2}' is invalid.");
  }
  // The example displays the following output:
  //    244681903147
  //    67012198154
  

  let string1 = "244681903147"
  try
      let number1 = Int64.Parse string1
      printfn $"{number1}"
  with
  | :? OverflowException ->
      printfn $"'{string1}' is out of range of a 64-bit integer."
  | :? FormatException ->
      printfn $"The format of '{string1}' is invalid."
  
  let string2 = "F9A3CFF0A"
  try
      let number2 = Int64.Parse(string2, NumberStyles.HexNumber)
      printfn $"{number2}"
  
  with
  | :? OverflowException ->
      printfn $"'{string2}' is out of range of a 64-bit integer."
  | :? FormatException ->
      printfn $"The format of '{string2}' is invalid."
  
  // The example displays the following output:
  //    244681903147
  //    67012198154
  

  Dim string1 As String = "244681903147"
  Try
     Dim number1 As Long = Int64.Parse(string1)
     Console.WriteLine(number1)
  Catch e As OverflowException
     Console.WriteLine("'{0}' is out of range of a 64-bit integer.", string1)
  Catch e As FormatException
     Console.WriteLine("The format of '{0}' is invalid.", string1)
  End Try
  
  Dim string2 As String = "F9A3CFF0A"
  Try
     Dim number2 As Long = Int64.Parse(string2,
                              System.Globalization.NumberStyles.HexNumber)
     Console.WriteLine(number2)
  Catch e As OverflowException
     Console.WriteLine("'{0}' is out of range of a 64-bit integer.", string2)
  Catch e As FormatException
     Console.WriteLine("The format of '{0}' is invalid.", string2)
  End Try
  ' The example displays the following output:
  '    244681903147
  '    67012198154
  

Executar operações em valores Int64

O Int64 tipo dá suporte a operações matemáticas padrão, como adição, subtração, divisão, multiplicação, negação e negação unária. Assim como os outros tipos integrais, o tipo Int64 também dá suporte aos operadores bit a bit AND, OR, XOR, deslocamento à esquerda e à direita.

Você pode usar os operadores numéricos padrão para comparar dois valores Int64 ou pode chamar o método CompareTo ou Equals.

Você também pode chamar os membros da Math classe para executar uma ampla gama de operações numéricas, incluindo obter o valor absoluto de um número, calcular o quociente e o restante da divisão integral, determinar o valor máximo ou mínimo de dois inteiros longos, obter o sinal de um número e arredondar um número.

Representar um Int64 como uma cadeia de caracteres

O tipo Int64 fornece suporte completo para cadeias de caracteres de formato numérico padrão e personalizado. (Para obter mais informações, consulte Tipos de Formatação, Cadeias de Caracteres de Formato Numérico Padrão e Cadeias de Caracteres de Formato Numérico Personalizado.)

Para formatar um valor Int64 como uma cadeia de caracteres integral sem zeros à esquerda, você pode chamar o método ToString() sem parâmetros. Usando o especificador de formato "D", você também pode incluir um número especificado de zeros à esquerda na representação da cadeia de caracteres. Usando o especificador de formato "N", você pode incluir separadores de grupo e especificar o número de dígitos decimais a serem exibidos na representação de cadeia de caracteres do número. Usando o especificador de formato "X", você pode representar um Int64 valor como uma cadeia de caracteres hexadecimal. O exemplo a seguir formata os elementos em uma matriz de Int64 valores destas quatro maneiras.

long[] numbers = { -1403, 0, 169, 1483104 };
foreach (var number in numbers)
{
    // Display value using default formatting.
    Console.Write("{0,-8}  -->   ", number.ToString());
    // Display value with 3 digits and leading zeros.
    Console.Write("{0,8:D3}", number);
    // Display value with 1 decimal digit.
    Console.Write("{0,13:N1}", number);
    // Display value as hexadecimal.
    Console.Write("{0,18:X2}", number);
    // Display value with eight hexadecimal digits.
    Console.WriteLine("{0,18:X8}", number);
}
// The example displays the following output:
//    -1403     -->      -1403     -1,403.0  FFFFFFFFFFFFFA85  FFFFFFFFFFFFFA85
//    0         -->        000          0.0                00          00000000
//    169       -->        169        169.0                A9          000000A9
//    1483104   -->    1483104  1,483,104.0            16A160          0016A160

let numbers = [| -1403L; 0L; 169L; 1483104L |]
for number in numbers do
    // Display value using default formatting.
    printf $"{number.ToString(),-8}  -->   "
    // Display value with 3 digits and leading zeros.
    printf $"{number,8:D3}"
    // Display value with 1 decimal digit.
    printf $"{number,13:N1}"
    // Display value as hexadecimal.
    printf $"{number,18:X2}"
    // Display value with eight hexadecimal digits.
    printfn $"{number,18:X8}"

// The example displays the following output:
//    -1403     -->      -1403     -1,403.0  FFFFFFFFFFFFFA85  FFFFFFFFFFFFFA85
//    0         -->        000          0.0                00          00000000
//    169       -->        169        169.0                A9          000000A9
//    1483104   -->    1483104  1,483,104.0            16A160          0016A160

Dim numbers() As Long = { -1403, 0, 169, 1483104 }
For Each number In numbers
   ' Display value using default formatting.
   Console.Write("{0,-8}  -->   ", number.ToString())
   ' Display value with 3 digits and leading zeros.
   Console.Write("{0,8:D3}", number)
   ' Display value with 1 decimal digit.
   Console.Write("{0,13:N1}", number) 
   ' Display value as hexadecimal.
   Console.Write("{0,18:X2}", number)
   ' Display value with eight hexadecimal digits.
   Console.WriteLine("{0,18:X8}", number)
Next   
' The example displays the following output:
'    -1403     -->      -1403     -1,403.0  FFFFFFFFFFFFFA85  FFFFFFFFFFFFFA85
'    0         -->        000          0.0                00          00000000
'    169       -->        169        169.0                A9          000000A9
'    1483104   -->    1483104  1,483,104.0            16A160          0016A160

Você também pode formatar um Int64 valor como uma cadeia de caracteres binária, octal, decimal ou hexadecimal chamando o ToString(Int64, Int32) método e fornecendo a base como o segundo parâmetro do método. O exemplo a seguir chama esse método para exibir as representações binárias, octais e hexadecimal de uma matriz de valores inteiros.

long[] numbers = { -146, 11043, 2781913 };
foreach (var number in numbers)
{
    Console.WriteLine($"{number} (Base 10):");
    Console.WriteLine($"   Binary:  {Convert.ToString(number, 2)}");
    Console.WriteLine($"   Octal:   {Convert.ToString(number, 8)}");
    Console.WriteLine($"   Hex:     {Convert.ToString(number, 16)}{Environment.NewLine}");
}
// The example displays the following output:
//    -146 (Base 10):
//       Binary:  1111111111111111111111111111111111111111111111111111111101101110
//       Octal:   1777777777777777777556
//       Hex:     ffffffffffffff6e
//
//    11043 (Base 10):
//       Binary:  10101100100011
//       Octal:   25443
//       Hex:     2b23
//
//    2781913 (Base 10):
//       Binary:  1010100111001011011001
//       Octal:   12471331
//       Hex:     2a72d9

let numbers = [| -146L; 11043L; 2781913L |]
for number in numbers do
    printfn $"{number} (Base 10):"
    printfn $"   Binary:  {Convert.ToString(number, 2)}"
    printfn $"   Octal:   {Convert.ToString(number, 8)}"
    printfn $"   Hex:     {Convert.ToString(number, 16)}\n"

// The example displays the following output:
//    -146 (Base 10):
//       Binary:  1111111111111111111111111111111111111111111111111111111101101110
//       Octal:   1777777777777777777556
//       Hex:     ffffffffffffff6e
//
//    11043 (Base 10):
//       Binary:  10101100100011
//       Octal:   25443
//       Hex:     2b23
//
//    2781913 (Base 10):
//       Binary:  1010100111001011011001
//       Octal:   12471331
//       Hex:     2a72d9

Dim numbers() As Long = { -146, 11043, 2781913 }
For Each number In numbers
   Console.WriteLine("{0} (Base 10):", number)
   Console.WriteLine("   Binary:  {0}", Convert.ToString(number, 2))
   Console.WriteLine("   Octal:   {0}", Convert.ToString(number, 8))
   Console.WriteLine("   Hex:     {0}", Convert.ToString(number, 16))
   Console.WriteLine()
Next      
' The example displays the following output:
'    -146 (Base 10):
'       Binary:  1111111111111111111111111111111111111111111111111111111101101110
'       Octal:   1777777777777777777556
'       Hex:     ffffffffffffff6e
'
'    11043 (Base 10):
'       Binary:  10101100100011
'       Octal:   25443
'       Hex:     2b23
'
'    2781913 (Base 10):
'       Binary:  1010100111001011011001
'       Octal:   12471331
'       Hex:     2a72d9

Trabalhar com valores inteiros não decimais de 64 bits

Além de trabalhar com números inteiros longos individuais como valores decimais, você pode querer executar operações bit a bit ou trabalhar com as representações binárias ou hexadecimais de valores inteiros longos. Int64 os valores são representados em 63 bits, com o 64º bit usado como um bit de sinal. Os valores positivos são representados usando a representação de sinal e magnitude. Os valores negativos estão na representação complementar de dois. É importante ter isso em mente quando você executa operações em nível de bits em valores Int64 ou quando trabalha com bits individuais. Para executar uma operação numérica, booliana ou de comparação em dois valores não decimais, ambos os valores devem usar a mesma representação.

Acesso thread-safe

Todos os membros desse tipo são thread safe. Os membros que parecem modificar o estado da instância retornam, na verdade, uma nova instância inicializada com o novo valor. Assim como acontece com qualquer outro tipo, a leitura e a gravação em uma variável compartilhada que contenha uma instância desse tipo devem ser protegidas por um bloqueio para garantir a segurança do thread.

Confira também

• UInt64
• Exemplo: Utilitário de Formatação WinForms do .NET Core (C#)
• Exemplo: Utilitário de Formatação WinForms do .NET Core (Visual Basic)