Int32 结构

定义

表示 32 位带符号整数。

public value class int : IComparable, IComparable<int>, IConvertible, IEquatable<int>, IFormattable
public value class int : IComparable, IComparable<int>, IConvertible, IEquatable<int>, ISpanFormattable
public value class int : IComparable<int>, IConvertible, IEquatable<int>, IParsable<int>, ISpanParsable<int>, System::Numerics::IAdditionOperators<int, int, int>, System::Numerics::IAdditiveIdentity<int, int>, System::Numerics::IBinaryInteger<int>, System::Numerics::IBinaryNumber<int>, System::Numerics::IBitwiseOperators<int, int, int>, System::Numerics::IComparisonOperators<int, int>, System::Numerics::IDecrementOperators<int>, System::Numerics::IDivisionOperators<int, int, int>, System::Numerics::IEqualityOperators<int, int>, System::Numerics::IIncrementOperators<int>, System::Numerics::IMinMaxValue<int>, System::Numerics::IModulusOperators<int, int, int>, System::Numerics::IMultiplicativeIdentity<int, int>, System::Numerics::IMultiplyOperators<int, int, int>, System::Numerics::INumber<int>, System::Numerics::INumberBase<int>, System::Numerics::IShiftOperators<int, int>, System::Numerics::ISignedNumber<int>, System::Numerics::ISubtractionOperators<int, int, int>, System::Numerics::IUnaryNegationOperators<int, int>, System::Numerics::IUnaryPlusOperators<int, int>
public value class int : IComparable, IConvertible, IFormattable
public value class int : IComparable, IComparable<int>, IEquatable<int>, IFormattable
public struct Int32 : IComparable, IComparable<int>, IConvertible, IEquatable<int>, IFormattable
public readonly struct Int32 : IComparable, IComparable<int>, IConvertible, IEquatable<int>, IFormattable
public readonly struct Int32 : IComparable, IComparable<int>, IConvertible, IEquatable<int>, ISpanFormattable
public readonly struct Int32 : IComparable<int>, IConvertible, IEquatable<int>, IParsable<int>, ISpanParsable<int>, System.Numerics.IAdditionOperators<int,int,int>, System.Numerics.IAdditiveIdentity<int,int>, System.Numerics.IBinaryInteger<int>, System.Numerics.IBinaryNumber<int>, System.Numerics.IBitwiseOperators<int,int,int>, System.Numerics.IComparisonOperators<int,int>, System.Numerics.IDecrementOperators<int>, System.Numerics.IDivisionOperators<int,int,int>, System.Numerics.IEqualityOperators<int,int>, System.Numerics.IIncrementOperators<int>, System.Numerics.IMinMaxValue<int>, System.Numerics.IModulusOperators<int,int,int>, System.Numerics.IMultiplicativeIdentity<int,int>, System.Numerics.IMultiplyOperators<int,int,int>, System.Numerics.INumber<int>, System.Numerics.INumberBase<int>, System.Numerics.IShiftOperators<int,int>, System.Numerics.ISignedNumber<int>, System.Numerics.ISubtractionOperators<int,int,int>, System.Numerics.IUnaryNegationOperators<int,int>, System.Numerics.IUnaryPlusOperators<int,int>
[System.Serializable]
public struct Int32 : IComparable, IConvertible, IFormattable
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public struct Int32 : IComparable, IComparable<int>, IConvertible, IEquatable<int>, IFormattable
public struct Int32 : IComparable, IComparable<int>, IEquatable<int>, IFormattable
type int = struct
    interface IConvertible
    interface IFormattable
type int = struct
    interface IConvertible
    interface ISpanFormattable
    interface IFormattable
type int = struct
    interface IConvertible
    interface IFormattable
    interface IParsable<int>
    interface ISpanFormattable
    interface ISpanParsable<int>
    interface IAdditionOperators<int, int, int>
    interface IAdditiveIdentity<int, int>
    interface IBinaryInteger<int>
    interface IBinaryNumber<int>
    interface IBitwiseOperators<int, int, int>
    interface IComparisonOperators<int, int>
    interface IEqualityOperators<int, int>
    interface IDecrementOperators<int>
    interface IDivisionOperators<int, int, int>
    interface IIncrementOperators<int>
    interface IModulusOperators<int, int, int>
    interface IMultiplicativeIdentity<int, int>
    interface IMultiplyOperators<int, int, int>
    interface INumber<int>
    interface INumberBase<int>
    interface ISubtractionOperators<int, int, int>
    interface IUnaryNegationOperators<int, int>
    interface IUnaryPlusOperators<int, int>
    interface IShiftOperators<int, int>
    interface IMinMaxValue<int>
    interface ISignedNumber<int>
[<System.Serializable>]
type int = struct
    interface IFormattable
    interface IConvertible
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type int = struct
    interface IFormattable
    interface IConvertible
type int = struct
    interface IFormattable
Public Structure Int32
Implements IComparable, IComparable(Of Integer), IConvertible, IEquatable(Of Integer), IFormattable
Public Structure Int32
Implements IComparable, IComparable(Of Integer), IConvertible, IEquatable(Of Integer), ISpanFormattable
Public Structure Int32
Implements IAdditionOperators(Of Integer, Integer, Integer), IAdditiveIdentity(Of Integer, Integer), IBinaryInteger(Of Integer), IBinaryNumber(Of Integer), IBitwiseOperators(Of Integer, Integer, Integer), IComparable(Of Integer), IComparisonOperators(Of Integer, Integer), IConvertible, IDecrementOperators(Of Integer), IDivisionOperators(Of Integer, Integer, Integer), IEqualityOperators(Of Integer, Integer), IEquatable(Of Integer), IIncrementOperators(Of Integer), IMinMaxValue(Of Integer), IModulusOperators(Of Integer, Integer, Integer), IMultiplicativeIdentity(Of Integer, Integer), IMultiplyOperators(Of Integer, Integer, Integer), INumber(Of Integer), INumberBase(Of Integer), IParsable(Of Integer), IShiftOperators(Of Integer, Integer), ISignedNumber(Of Integer), ISpanParsable(Of Integer), ISubtractionOperators(Of Integer, Integer, Integer), IUnaryNegationOperators(Of Integer, Integer), IUnaryPlusOperators(Of Integer, Integer)
Public Structure Int32
Implements IComparable, IConvertible, IFormattable
Public Structure Int32
Implements IComparable, IComparable(Of Integer), IEquatable(Of Integer), IFormattable
继承
属性
实现
IComparable IComparable<Int32> IConvertible IEquatable<Int32> IFormattable ISpanFormattable IComparable<TOther> IComparable<TSelf> IEquatable<TOther> IEquatable<TSelf> IParsable<Int32> IParsable<TSelf> ISpanParsable<Int32> ISpanParsable<TSelf> IAdditionOperators<Int32,Int32,Int32> IAdditionOperators<TSelf,TSelf,TSelf> IAdditiveIdentity<Int32,Int32> IAdditiveIdentity<TSelf,TSelf> IBinaryInteger<Int32> IBinaryNumber<Int32> IBinaryNumber<TSelf> IBitwiseOperators<Int32,Int32,Int32> IBitwiseOperators<TSelf,TSelf,TSelf> System.Numerics.IComparisonOperators<Int32,Int32> System.Numerics.IComparisonOperators<TSelf,TSelf> IDecrementOperators<Int32> IDecrementOperators<TSelf> IDivisionOperators<Int32,Int32,Int32> IDivisionOperators<TSelf,TSelf,TSelf> System.Numerics.IEqualityOperators<Int32,Int32> System.Numerics.IEqualityOperators<TSelf,TOther> System.Numerics.IEqualityOperators<TSelf,TSelf> IIncrementOperators<Int32> IIncrementOperators<TSelf> IMinMaxValue<Int32> IModulusOperators<Int32,Int32,Int32> IModulusOperators<TSelf,TSelf,TSelf> IMultiplicativeIdentity<Int32,Int32> IMultiplicativeIdentity<TSelf,TSelf> IMultiplyOperators<Int32,Int32,Int32> IMultiplyOperators<TSelf,TSelf,TSelf> INumber<Int32> INumber<TSelf> INumberBase<Int32> INumberBase<TSelf> System.Numerics.IShiftOperators<Int32,Int32> System.Numerics.IShiftOperators<TSelf,TSelf> ISignedNumber<Int32> ISubtractionOperators<Int32,Int32,Int32> ISubtractionOperators<TSelf,TSelf,TSelf> IUnaryNegationOperators<Int32,Int32> IUnaryNegationOperators<TSelf,TSelf> IUnaryPlusOperators<Int32,Int32> IUnaryPlusOperators<TSelf,TSelf>

注解

Int32 是一个不可变值类型,表示有符号整数,其值范围为负 2,147,483,648 (,该常量由 Int32.MinValue 常量) 通过正 2,147,483,647 (Int32.MaxValue 表示。 .NET 还包含一个无符号 32 位整数值类型, UInt32表示范围为 0 到 4,294,967,295 的值。

实例化 Int32 值

可以通过多种方式实例化 Int32 值:

  • 可以声明变量 Int32 ,并为其分配数据类型范围内 Int32 的文本整数值。 以下示例声明两个 Int32 变量,并以此方式分配这些变量。

    int number1 = 64301;
    int number2 = 25548612;
    
    let number1 = 64301
    let number2 = 25548612
    
    Dim number1 As Integer = 64301
    Dim number2 As Integer = 25548612
    
  • 可以分配其范围是该类型的子集的 Int32 整数类型的值。 这是一个扩大的转换,不需要 C# 中的强制转换运算符或 Visual Basic 中的转换方法,但需要 F# 中的转换。

    sbyte value1 = 124;
    short value2 = 1618;
    
    int number1 = value1;
    int number2 = value2;
    
    let value1 = 124y
    let value2 = 1618s
    
    let number1 = int value1
    let number2 = int value2
    
    Dim value1 As SByte = 124
    Dim value2 As Int16 = 1618
    
    Dim number1 As Integer = value1
    Dim number2 As Integer = value2
    
  • 可以分配其范围超过 Int32 该类型的数值类型的值。 这是一个缩小的转换,因此它需要 C# 或 F# 中的强制转换运算符,以及 Visual Basic 中的转换方法(如果 Option Strict 打开)。 如果数值是包含SingleDouble小数分量的值,Decimal则其小数部分的处理取决于执行转换的编译器。 以下示例执行缩小转换,将多个数值分配给 Int32 变量。

    long lNumber = 163245617;
    try {
       int number1 = (int) lNumber;
       Console.WriteLine(number1);
    }
    catch (OverflowException) {
       Console.WriteLine("{0} is out of range of an Int32.", lNumber);
    }
    
    double dbl2 = 35901.997;
    try {
       int number2 = (int) dbl2;
       Console.WriteLine(number2);
    }
    catch (OverflowException) {
       Console.WriteLine("{0} is out of range of an Int32.", dbl2);
    }
    
    BigInteger bigNumber = 132451;
    try {
       int number3 = (int) bigNumber;
       Console.WriteLine(number3);
    }
    catch (OverflowException) {
       Console.WriteLine("{0} is out of range of an Int32.", bigNumber);
    }
    // The example displays the following output:
    //       163245617
    //       35902
    //       132451
    
    let lNumber = 163245617L
    try
        let number1 = int lNumber
        printfn $"{number1}"
    with :? OverflowException ->
        printfn "{lNumber} is out of range of an Int32."
    
    let dbl2 = 35901.997
    try
        let number2 = int dbl2
        printfn $"{number2}"
    with :? OverflowException ->
        printfn $"{dbl2} is out of range of an Int32."
    
    let bigNumber = BigInteger 132451
    try
        let number3 = int bigNumber
        printfn $"{number3}"
    with :? OverflowException ->
        printfn $"{bigNumber} is out of range of an Int32."
    
    // The example displays the following output:
    //       163245617
    //       35902
    //       132451
    
    Dim lNumber As Long = 163245617
    Try
       Dim number1 As Integer = CInt(lNumber)
       Console.WriteLine(number1)
    Catch e As OverflowException
       Console.WriteLine("{0} is out of range of an Int32.", lNumber)
    End Try
    
    Dim dbl2 As Double = 35901.997
    Try
       Dim number2 As Integer = CInt(dbl2)
       Console.WriteLine(number2)
    Catch e As OverflowException
       Console.WriteLine("{0} is out of range of an Int32.", dbl2)
    End Try
       
    Dim bigNumber As BigInteger = 132451
    Try
       Dim number3 As Integer = CInt(bigNumber)
       Console.WriteLine(number3)
    Catch e As OverflowException
       Console.WriteLine("{0} is out of range of an Int32.", bigNumber)
    End Try    
    ' The example displays the following output:
    '       163245617
    '       35902
    '       132451
    
  • 可以调用类的方法 Convert ,将任何受支持的类型转换为 Int32 值。 这是可能的,IConvertible因为Int32支持接口。 下面的示例演示了值数组 DecimalInt32 值的转换。

    decimal[] values= { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
                        199.55m, 9214.16m, Decimal.MaxValue };
    int result;
    
    foreach (decimal value in values)
    {
       try {
          result = Convert.ToInt32(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 Int32 type.",
                            value);
       }
    }
    // The example displays the following output:
    //    -79228162514264337593543950335 is outside the range of the Int32 type.
    //    Converted the Decimal value '-1034.23' to the Int32 value -1034.
    //    Converted the Decimal value '-12' to the Int32 value -12.
    //    Converted the Decimal value '0' to the Int32 value 0.
    //    Converted the Decimal value '147' to the Int32 value 147.
    //    Converted the Decimal value '199.55' to the Int32 value 200.
    //    Converted the Decimal value '9214.16' to the Int32 value 9214.
    //    79228162514264337593543950335 is outside the range of the Int32 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.ToInt32 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 Int32 type."
       
    // The example displays the following output:
    //    -79228162514264337593543950335 is outside the range of the Int32 type.
    //    Converted the Decimal value '-1034.23' to the Int32 value -1034.
    //    Converted the Decimal value '-12' to the Int32 value -12.
    //    Converted the Decimal value '0' to the Int32 value 0.
    //    Converted the Decimal value '147' to the Int32 value 147.
    //    Converted the Decimal value '199.55' to the Int32 value 200.
    //    Converted the Decimal value '9214.16' to the Int32 value 9214.
    //    79228162514264337593543950335 is outside the range of the Int32 type.
    
    Dim values() As Decimal = { Decimal.MinValue, -1034.23d, -12d, 0d, 147d, _
                                199.55d, 9214.16d, Decimal.MaxValue }
    Dim result As Integer
    
    For Each value As Decimal In values
       Try
          result = Convert.ToInt32(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 Int32 type.", _
                            value)
       End Try   
    Next                                  
    ' The example displays the following output:
    '    -79228162514264337593543950335 is outside the range of the Int32 type.
    '    Converted the Decimal value '-1034.23' to the Int32 value -1034.
    '    Converted the Decimal value '-12' to the Int32 value -12.
    '    Converted the Decimal value '0' to the Int32 value 0.
    '    Converted the Decimal value '147' to the Int32 value 147.
    '    Converted the Decimal value '199.55' to the Int32 value 200.
    '    Converted the Decimal value '9214.16' to the Int32 value 9214.
    '    79228162514264337593543950335 is outside the range of the Int32 type.
    
  • 可以调用 ParseTryParse 方法将值的字符串表示形式 Int32 转换为值 Int32。 字符串可以包含十进制或十六进制数字。 以下示例使用十进制字符串和十六进制字符串来演示分析操作。

    string string1 = "244681";
    try {
       int number1 = Int32.Parse(string1);
       Console.WriteLine(number1);
    }
    catch (OverflowException) {
       Console.WriteLine("'{0}' is out of range of a 32-bit integer.", string1);
    }
    catch (FormatException) {
       Console.WriteLine("The format of '{0}' is invalid.", string1);
    }
    
    string string2 = "F9A3C";
    try {
       int number2 = Int32.Parse(string2,
                                System.Globalization.NumberStyles.HexNumber);
       Console.WriteLine(number2);
    }
    catch (OverflowException) {
       Console.WriteLine("'{0}' is out of range of a 32-bit integer.", string2);
    }
    catch (FormatException) {
       Console.WriteLine("The format of '{0}' is invalid.", string2);
    }
    // The example displays the following output:
    //       244681
    //       1022524
    
    let string1 = "244681"
    try
        let number1 = Int32.Parse string1
        printfn $"{number1}"
    with
    | :? OverflowException ->
        printfn "'{string1}' is out of range of a 32-bit integer."
    | :? FormatException ->
        printfn $"The format of '{string1}' is invalid."
    
    let string2 = "F9A3C"
    try
        let number2 = Int32.Parse(string2, System.Globalization.NumberStyles.HexNumber)
        printfn $"{number2}"
    with 
    | :? OverflowException ->
        printfn $"'{string2}' is out of range of a 32-bit integer."
    | :? FormatException ->
        printfn $"The format of '{string2}' is invalid."
    
    // The example displays the following output:
    //       244681
    //       1022524
    
    Dim string1 As String = "244681"
    Try
       Dim number1 As Integer = Int32.Parse(string1)
       Console.WriteLine(number1)
    Catch e As OverflowException
       Console.WriteLine("'{0}' is out of range of a 32-bit integer.", string1)
    Catch e As FormatException
       Console.WriteLine("The format of '{0}' is invalid.", string1)
    End Try
    
    Dim string2 As String = "F9A3C"
    Try
       Dim number2 As Integer = Int32.Parse(string2,
                                System.Globalization.NumberStyles.HexNumber)
       Console.WriteLine(number2)
    Catch e As OverflowException
       Console.WriteLine("'{0}' is out of range of a 32-bit integer.", string2)
    Catch e As FormatException
       Console.WriteLine("The format of '{0}' is invalid.", string2)
    End Try
    ' The example displays the following output:
    '       244681
    '       1022524
    

对 Int32 值执行操作

Int32 类型支持标准数学运算,例如加法、减法、除法、乘法、负数和一元负数。 与其他整型类型一样,该 Int32 类型还支持按 AND位、 ORXOR移和右移运算符。

可以使用标准数值运算符比较两 Int32 个值,也可以调用 CompareToEquals 方法。

还可以调用类的成员 Math 来执行广泛的数值运算,包括获取数字的绝对值、计算积分除法的商和余数、确定两个整数的最大值或最小值、获取数字的符号以及舍入一个数字。

将 Int32 表示为字符串

Int32 类型为标准和自定义数字格式字符串提供完全支持。 (有关详细信息,请参阅 格式设置类型标准数值格式字符串自定义数字格式字符串。)

若要将 Int32 值格式化为没有前导零的整数字符串,可以调用无 ToString() 参数方法。 通过使用“D”格式说明符,还可以在字符串表示形式中包含指定数量的前导零。 通过使用“N”格式说明符,可以包括组分隔符,并指定要显示在数字的字符串表示形式的十进制数字数。 通过使用“X”格式说明符,可以将值 Int32 表示为十六进制字符串。 以下示例采用以下四种方式设置值数组 Int32 中的元素的格式。

int[] numbers = { -1403, 0, 169, 1483104 };
foreach (int number in numbers) {
   // Display value using default formatting.
   Console.Write("{0,-8}  -->   ", number.ToString());
   // Display value with 3 digits and leading zeros.
   Console.Write("{0,11:D3}", number);
   // Display value with 1 decimal digit.
   Console.Write("{0,13:N1}", number);
   // Display value as hexadecimal.
   Console.Write("{0,12:X2}", number);
   // Display value with eight hexadecimal digits.
   Console.WriteLine("{0,14:X8}", number);
}
// The example displays the following output:
//    -1403     -->         -1403     -1,403.0    FFFFFA85      FFFFFA85
//    0         -->           000          0.0          00      00000000
//    169       -->           169        169.0          A9      000000A9
//    1483104   -->       1483104  1,483,104.0      16A160      0016A160
let numbers = [| -1403; 0; 169; 1483104 |]
for number in numbers do
    // Display value using default formatting.
    printf $"{number,-8}  -->   "
    // Display value with 3 digits and leading zeros.
    printf $"{number,11:D3}"
    // Display value with 1 decimal digit.
    printf $"{number,13:N1}"
    // Display value as hexadecimal.
    printf $"{number,12:X2}"
    // Display value with eight hexadecimal digits.
    printfn $"{number,14:X8}"


  // The example displays the following output:
  //    -1403     -->         -1403     -1,403.0    FFFFFA85      FFFFFA85
  //    0         -->           000          0.0          00      00000000
  //    169       -->           169        169.0          A9      000000A9
  //    1483104   -->       1483104  1,483,104.0      16A160      0016A160
Dim numbers() As Integer = { -1403, 0, 169, 1483104 }
For Each number As Integer In numbers
   ' Display value using default formatting.
   Console.Write("{0,-8}  -->   ", number.ToString())
   ' Display value with 3 digits and leading zeros.
   Console.Write("{0,11:D3}", number) 
   ' Display value with 1 decimal digit.
   Console.Write("{0,13:N1}", number) 
   ' Display value as hexadecimal.
   Console.Write("{0,12:X2}", number) 
   ' Display value with eight hexadecimal digits.
   Console.WriteLine("{0,14:X8}", number)
Next   
' The example displays the following output:
'    -1403     -->         -1403     -1,403.0    FFFFFA85      FFFFFA85
'    0         -->           000          0.0          00      00000000
'    169       -->           169        169.0          A9      000000A9
'    1483104   -->       1483104  1,483,104.0      16A160      0016A160

还可以通过调用ToString(Int32, Int32)方法并提供基作为方法的第二个参数,将值格式化Int32为二进制、八进制、十六进制或十六进制字符串。 下面的示例调用此方法以显示整数值的数组的二进制、八进制和十六进制表示形式。

int[] numbers = { -146, 11043, 2781913 };
Console.WriteLine("{0,8}   {1,32}   {2,11}   {3,10}",
                  "Value", "Binary", "Octal", "Hex");
foreach (int number in numbers) {
   Console.WriteLine("{0,8}   {1,32}   {2,11}   {3,10}",
                     number, Convert.ToString(number, 2),
                     Convert.ToString(number, 8),
                     Convert.ToString(number, 16));
}
// The example displays the following output:
//       Value                             Binary         Octal          Hex
//        -146   11111111111111111111111101101110   37777777556     ffffff6e
//       11043                     10101100100011         25443         2b23
//     2781913             1010100111001011011001      12471331       2a72d9
let numbers = [| -146; 11043; 2781913 |]
printfn $"""{"Value",8}   {"Binary",32}   {"Octal",11}   {"Hex",10}""" 
for number in numbers do
    printfn $"{number,8}   {Convert.ToString(number, 2),32}   {Convert.ToString(number, 8),11}   {Convert.ToString(number, 16),10}"

// The example displays the following output:
//       Value                             Binary         Octal          Hex
//        -146   11111111111111111111111101101110   37777777556     ffffff6e
//       11043                     10101100100011         25443         2b23
//     2781913             1010100111001011011001      12471331       2a72d9
Dim numbers() As Integer = { -146, 11043, 2781913 }
Console.WriteLine("{0,8}   {1,32}   {2,11}   {3,10}", _
                  "Value", "Binary", "Octal", "Hex")
For Each number As Integer In numbers
   Console.WriteLine("{0,8}   {1,32}   {2,11}   {3,10}", _
                     number, Convert.ToString(number, 2), _
                     Convert.ToString(number, 8), _
                     Convert.ToString(number, 16))
Next      
' The example displays the following output:
'       Value                             Binary         Octal          Hex
'        -146   11111111111111111111111101101110   37777777556     ffffff6e
'       11043                     10101100100011         25443         2b23
'     2781913             1010100111001011011001      12471331       2a72d9

使用非十进制 32 位整数值

除了将单个整数用作十进制值外,你可能还希望使用整数值执行按位运算,或者使用整数值的二进制或十六进制表示形式。 Int32 值以 31 位表示,第三十二位用作符号位。 正值使用符号和数量级表示形式表示。 负值采用两种补充表示形式。 在对 Int32 值执行按位操作或处理单个位时,请务必记住这一点。 若要对任意两个非十进制值执行数值、布尔值或比较运算,这两个值必须使用相同的表示形式。

字段

MaxValue

表示 Int32 的最大可能值。 此字段为常数。

MinValue

表示 Int32 的最小可能值。 此字段为常数。

方法

Abs(Int32)

计算值的绝对值。

Clamp(Int32, Int32, Int32)

将值固定到非独占最小值和最大值。

CompareTo(Int32)

将此实例与指定的 32 位有符号整数进行比较并返回对其相对值的指示。

CompareTo(Object)

将此实例与指定对象进行比较并返回一个对二者的相对值的指示。

CopySign(Int32, Int32)

将值的符号复制到另一个值的符号。

CreateChecked<TOther>(TOther)

从值创建当前类型的实例,为超出当前类型的可表示范围的任何值引发溢出异常。

CreateSaturating<TOther>(TOther)

从值创建当前类型的实例,使属于当前类型的可表示范围之外的任何值饱和。

CreateTruncating<TOther>(TOther)

从值创建当前类型的实例,截断属于当前类型的可表示范围之外的任何值。

DivRem(Int32, Int32)

计算两个值的商和余数。

Equals(Int32)

返回一个值,该值指示此实例是否等于指定的 Int32 值。

Equals(Object)

返回一个值,该值指示此实例是否等于指定的对象。

GetHashCode()

返回此实例的哈希代码。

GetTypeCode()

返回值类型 TypeCodeInt32

IsEvenInteger(Int32)

确定值是否表示偶数整数。

IsNegative(Int32)

确定值是否为负值。

IsOddInteger(Int32)

确定值是否表示奇数整数。

IsPositive(Int32)

确定值是否为正值。

IsPow2(Int32)

确定值是否为 2 的幂。

LeadingZeroCount(Int32)

计算值中的前导零数。

Log2(Int32)

计算值的 log2。

Max(Int32, Int32)

将两个值与计算进行比较,该值更大。

MaxMagnitude(Int32, Int32)

将两个值与计算进行比较,该值更大。

Min(Int32, Int32)

将两个值与计算进行比较,该值更小。

MinMagnitude(Int32, Int32)

将两个值与计算进行比较,该值更小。

Parse(ReadOnlySpan<Char>, IFormatProvider)

将字符范围分析为值。

Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)

将指定样式和区域性特定格式的数字的范围表示形式转换为其等效的 32 位带符号整数。

Parse(String)

将数字的字符串表示形式转换为它的等效 32 位有符号整数。

Parse(String, IFormatProvider)

将指定的区域性特定格式的数字的字符串表示形式转换为它的等效 32 位有符号整数。

Parse(String, NumberStyles)

将指定样式的数字的字符串表示形式转换为它的等效 32 位有符号整数。

Parse(String, NumberStyles, IFormatProvider)

将指定样式和区域性特定格式的数字的字符串表示形式转换为它的等效 32 位有符号整数。

PopCount(Int32)

计算值中设置的位数。

RotateLeft(Int32, Int32)

将一个值左移一个给定的量。

RotateRight(Int32, Int32)

按给定量向右旋转值。

Sign(Int32)

计算值的符号。

ToString()

将此实例的数值转换为其等效的字符串表示形式。

ToString(IFormatProvider)

使用指定的区域性特定格式信息,将此实例的数值转换为它的等效字符串表示形式。

ToString(String)

使用指定的格式,将此实例的数值转换为它的等效字符串表示形式。

ToString(String, IFormatProvider)

使用指定的格式和区域性特定格式信息,将此实例的数值转换为它的等效字符串表示形式。

TrailingZeroCount(Int32)

计算值尾随零的数目。

TryFormat(Span<Char>, Int32, ReadOnlySpan<Char>, IFormatProvider)

尝试将当前整数数字实例的值的格式设置为提供的字符范围。

TryParse(ReadOnlySpan<Char>, IFormatProvider, Int32)

尝试将字符范围分析为值。

TryParse(ReadOnlySpan<Char>, Int32)

将指定样式和区域性特定格式的数字的范围表示形式转换为其等效的 32 位带符号整数。 一个指示转换是否成功的返回值。

TryParse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider, Int32)

将指定样式和区域性特定格式的数字的范围表示形式转换为其等效的 32 位带符号整数。 一个指示转换是否成功的返回值。

TryParse(String, IFormatProvider, Int32)
TryParse(String, Int32)

将数字的字符串表示形式转换为它的等效 32 位有符号整数。 一个指示转换是否成功的返回值。

TryParse(String, NumberStyles, IFormatProvider, Int32)

将指定样式和区域性特定格式的数字的字符串表示形式转换为它的等效 32 位有符号整数。 一个指示转换是否成功的返回值。

显式接口实现

IBinaryInteger<Int32>.GetByteCount()

获取将作为其一部分 TryWriteLittleEndian(Span<Byte>, Int32)写入的字节数。

IBinaryInteger<Int32>.GetShortestBitLength()

获取最短两个当前值的补充表示形式的长度(以位为单位)。

IBinaryInteger<Int32>.TryWriteBigEndian(Span<Byte>, Int32)

尝试将当前值(采用大端格式)写入给定范围。

IBinaryInteger<Int32>.TryWriteLittleEndian(Span<Byte>, Int32)

尝试将当前值(以小端格式)写入给定范围。

IComparable.CompareTo(Object)

将此实例与指定对象进行比较并返回一个对二者的相对值的指示。

IConvertible.GetTypeCode()

返回值类型 TypeCodeInt32

IConvertible.ToBoolean(IFormatProvider)

有关此成员的说明,请参见 ToBoolean(IFormatProvider)

IConvertible.ToByte(IFormatProvider)

有关此成员的说明,请参见 ToByte(IFormatProvider)

IConvertible.ToChar(IFormatProvider)

有关此成员的说明,请参见 ToChar(IFormatProvider)

IConvertible.ToDateTime(IFormatProvider)

不支持此转换。 尝试使用此方法将引发 InvalidCastException

IConvertible.ToDecimal(IFormatProvider)

有关此成员的说明,请参见 ToDecimal(IFormatProvider)

IConvertible.ToDouble(IFormatProvider)

有关此成员的说明,请参见 ToDouble(IFormatProvider)

IConvertible.ToInt16(IFormatProvider)

有关此成员的说明,请参见 ToInt16(IFormatProvider)

IConvertible.ToInt32(IFormatProvider)

有关此成员的说明,请参见 ToInt32(IFormatProvider)

IConvertible.ToInt64(IFormatProvider)

有关此成员的说明,请参见 ToInt64(IFormatProvider)

IConvertible.ToSByte(IFormatProvider)

有关此成员的说明,请参见 ToSByte(IFormatProvider)

IConvertible.ToSingle(IFormatProvider)

有关此成员的说明,请参见 ToSingle(IFormatProvider)

IConvertible.ToType(Type, IFormatProvider)

有关此成员的说明,请参见 ToType(Type, IFormatProvider)

IConvertible.ToUInt16(IFormatProvider)

有关此成员的说明,请参见 ToUInt16(IFormatProvider)

IConvertible.ToUInt32(IFormatProvider)

有关此成员的说明,请参见 ToUInt32(IFormatProvider)

IConvertible.ToUInt64(IFormatProvider)

有关此成员的说明,请参见 ToUInt64(IFormatProvider)

适用于

线程安全性

此类型的所有成员都是线程安全的。 似乎修改实例状态的成员实际上返回使用新值初始化的新实例。 与任何其他类型一样,读取和写入包含此类型的实例的共享变量必须受到锁的保护,以确保线程安全。

另请参阅