Int32 结构
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
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, bool>, System::Numerics::IDecrementOperators<int>, System::Numerics::IDivisionOperators<int, int, int>, System::Numerics::IEqualityOperators<int, int, bool>, 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, 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<int>, IConvertible, IEquatable<int>, IParsable<int>, ISpanParsable<int>, IUtf8SpanFormattable, IUtf8SpanParsable<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, bool>, System::Numerics::IDecrementOperators<int>, System::Numerics::IDivisionOperators<int, int, int>, System::Numerics::IEqualityOperators<int, int, bool>, 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, 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,bool>, System.Numerics.IDecrementOperators<int>, System.Numerics.IDivisionOperators<int,int,int>, System.Numerics.IEqualityOperators<int,int,bool>, 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,int>, System.Numerics.ISignedNumber<int>, System.Numerics.ISubtractionOperators<int,int,int>, System.Numerics.IUnaryNegationOperators<int,int>, System.Numerics.IUnaryPlusOperators<int,int>
public readonly struct Int32 : IComparable<int>, IConvertible, IEquatable<int>, IParsable<int>, ISpanParsable<int>, IUtf8SpanFormattable, IUtf8SpanParsable<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,bool>, System.Numerics.IDecrementOperators<int>, System.Numerics.IDivisionOperators<int,int,int>, System.Numerics.IEqualityOperators<int,int,bool>, 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,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, bool>
interface IEqualityOperators<int, int, bool>
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, int>
interface IMinMaxValue<int>
interface ISignedNumber<int>
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, bool>
interface IEqualityOperators<int, int, bool>
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 IUtf8SpanParsable<int>
interface IShiftOperators<int, int, int>
interface IMinMaxValue<int>
interface ISignedNumber<int>
interface IUtf8SpanFormattable
[<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, Boolean), IConvertible, IDecrementOperators(Of Integer), IDivisionOperators(Of Integer, Integer, Integer), IEqualityOperators(Of Integer, Integer, Boolean), 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, Integer), ISignedNumber(Of Integer), ISpanParsable(Of Integer), ISubtractionOperators(Of Integer, Integer, Integer), IUnaryNegationOperators(Of Integer, Integer), IUnaryPlusOperators(Of Integer, Integer)
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, Boolean), IConvertible, IDecrementOperators(Of Integer), IDivisionOperators(Of Integer, Integer, Integer), IEqualityOperators(Of Integer, Integer, Boolean), 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, Integer), ISignedNumber(Of Integer), ISpanParsable(Of Integer), ISubtractionOperators(Of Integer, Integer, Integer), IUnaryNegationOperators(Of Integer, Integer), IUnaryPlusOperators(Of Integer, Integer), IUtf8SpanFormattable, IUtf8SpanParsable(Of 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<TSelf> 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> IComparisonOperators<Int32,Int32,Boolean> IComparisonOperators<TSelf,TSelf,Boolean> IDecrementOperators<Int32> IDecrementOperators<TSelf> IDivisionOperators<Int32,Int32,Int32> IDivisionOperators<TSelf,TSelf,TSelf> IEqualityOperators<Int32,Int32,Boolean> IEqualityOperators<TSelf,TOther,TResult> IEqualityOperators<TSelf,TSelf,Boolean> 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> IShiftOperators<Int32,Int32,Int32> IShiftOperators<TSelf,Int32,TSelf> ISignedNumber<Int32> ISubtractionOperators<Int32,Int32,Int32> ISubtractionOperators<TSelf,TSelf,TSelf> IUnaryNegationOperators<Int32,Int32> IUnaryNegationOperators<TSelf,TSelf> IUnaryPlusOperators<Int32,Int32> IUnaryPlusOperators<TSelf,TSelf> IUtf8SpanFormattable IUtf8SpanParsable<Int32> IUtf8SpanParsable<TSelf>
注解
Int32 是一种不可变值类型,表示带符号整数,其值范围为负 2,147,483,648 (由常量) 到 Int32.MinValue 正 2,147,483,647 ((由 Int32.MaxValue 常量表示)。 .NET 还包括无符号 32 位整数值类型 , UInt32它表示从 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的 Int32 文本整数值。 以下示例声明两个 Int32 变量,并以此方式为其赋值。
int number1 = 64301; int number2 = 25548612;
let number1 = 64301 let number2 = 25548612
Dim number1 As Integer = 64301 Dim number2 As Integer = 25548612
可以分配整数类型的值,其范围是该 Int32 类型的子集。 这是一种扩大转换,它不需要 C# 中的强制转换运算符或 Visual Basic 中的转换方法,但在 F# 中需要一个转换方法。
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。 这是一个收缩转换,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
已启用)。 如果数值是包含 Single小数部分的 、 Double或 Decimal 值,则其小数部分的处理取决于执行转换的编译器。 以下示例执行收缩转换,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 Convert 方法,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。 下面的示例演示值数组 Decimal 到 Int32 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 Parse 或 TryParse 方法,将值的字符串表示形式 Int32 转换为 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和十六进制字符串演示了分析操作。
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
类型 Int32 支持标准数学运算,例如加法、减法、除法、乘法、求反和一元求反。 与其他整型类型一样, Int32 类型还支持按AND
位 、、OR
XOR
、左移和右移运算符。
可以使用标准数值运算符来比较两个 Int32 值,也可以调用 CompareTo 或 Equals 方法。
还可以调用 类的成员 Math 来执行各种数值运算,包括获取数字的绝对值、计算整除的商和余数、确定两个整数的最大值或最小值、获取一个数字的符号以及舍入一个数字。
将 Int32 表示为字符串
类型 Int32 提供对标准和自定义数字格式字符串的完全支持。 (有关详细信息,请参阅 格式设置类型、 标准数字格式字符串和 自定义数值格式字符串。)
若要将 Int32 值格式化为不带前导零的整型字符串,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,可以包含组分隔符,并指定要在数字的字符串表示形式中显示的小数位数。 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 base 作为方法的第二个参数,将值格式化Int32为二进制、八进制、十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
除了使用单个整数作为十进制值之外,你可能还希望对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,30 秒位用作符号位。 正值使用符号和数量级表示形式表示。 负值以二的补数表示形式表示。 在对 Int32 值执行按位运算或处理单个位时,请务必记住这一点。 若要对任何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
显式接口实现
适用于
线程安全性
此类型的所有成员都是线程安全的。 看起来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。