Int32 結構
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
表示 32 位元帶正負號的整數。
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
- 繼承
- 屬性
- 實作
-
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>
備註
Int32 是不可變的實值型別,代表帶正負號的整數,其值範圍從負數 2,147,483,648 (Int32.MinValue 表示,由常數) 到正數 2,147,483,647 (Int32.MaxValue 表示。 .NET 也包含不帶正負號的 32 位整數實數值型別, UInt32 代表範圍從 0 到 4,294,967,295 的值。
具現化 Int32 值
您可以透過數種方式具現化 Int32 值:
您可以宣告 Int32 變數,並為其指派資料類型範圍內 Int32 常值整數值。 下列範例會宣告兩 Int32 個變數,並以這種方式指派這些變數。
int number1 = 64301; int number2 = 25548612;
let number1 = 64301 let number2 = 25548612
Dim number1 As Integer = 64301 Dim number2 As Integer = 25548612
您可以指派整數型別的值,其範圍是類型的子集 Int32 。 這是擴輾轉換,不需要 C# 中的轉換運算子或 Visual Basic 中的轉換方法,但需要 F# 中的轉換運算子。
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
您可以指派數數值型別的值,其範圍超過 Int32 該類型的值。 這是縮小轉換,因此在 C# 或 F# 中需要轉換運算子,如果 開啟,則需要 Visual Basic
Option Strict
中的轉換方法。 如果數值是包含 Single 小陣列件的 、 Double 或 Decimal 值,則其小數部分的處理取決於執行轉換的編譯器。 下列範例會執行縮小轉換,將數個數值指派給 Int32 變數。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
您可以呼叫 類別的方法, Convert 將任何支援的型別 Int32 轉換為值。 這是可行的,因為 Int32 支援 IConvertible 介面。 下列範例說明將值 Int32 陣列 Decimal 轉換成值。
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.
您可以呼叫 Parse 或 TryParse 方法,將值的字串表示 Int32 轉換成 Int32 。 字串可以包含十進位或十六進位數位。 下列範例說明使用十進位和十六進位字串來剖析作業。
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
對 Int32 值執行作業
此 Int32 類型支援標準數學運算,例如加法、減法、除法、乘法、負數和一元負數。 與其他整數類型一樣,此 Int32 類型也支援位 AND
、 OR
、 XOR
左移和右移運算子。
您可以使用標準數值運算子來比較兩 Int32 個值,也可以呼叫 CompareTo 或 Equals 方法。
您也可以呼叫 類別的成員 Math 來執行廣泛的數值運算,包括取得數位的絕對值、計算整數除法的商數和餘數、判斷兩個整數的最大值或最小值、取得數位的正負號,以及四捨五入數位。
以字串表示 Int32
此 Int32 類型提供標準和自訂數值格式字串的完整支援。 (如需詳細資訊,請參閱 格式化類型、 標準數值格式字串和 自訂數值格式字串s.)
若要將 Int32 值格式化為不含前置零的整數位符串,您可以呼叫無 ToString() 參數方法。 藉由使用 「D」 格式規範,您也可以在字串表示中包含指定數目的前置零。 藉由使用 「N」 格式規範,您可以包含群組分隔符號,並指定要出現在數位字串表示中的十進位數數目。 藉由使用 「X」 格式規範,您可以將值表示 Int32 為十六進位字串。 下列範例會以下列四種方式格式化值陣列中的 Int32 專案。
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
您也可以呼叫 ToString(Int32, Int32) 方法,並提供基底做為方法的第二個參數,將值格式化 Int32 為二進位、八進位、十六進位或十六進位字串。 下列範例會呼叫這個方法,以顯示整數值陣列的二進位、八進位和十六進位標記法。
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
使用非十進位 32 位整數值
除了使用個別整數做為十進位值之外,您也可以使用整數值來執行位運算,或使用整數值的二進位或十六進位標記法。 Int32 值以 31 位表示,使用三十秒位做為符號位。 正值是使用正數標記法來表示。 負值在兩個補數標記法中。 當您對 Int32 值執行位運算或使用個別位時,請務必記住這點。 若要在任何兩個非十進位值上執行數值、布林值或比較運算,這兩個值都必須使用相同的標記法。
欄位
MaxValue |
代表 Int32 最大的可能值。 這個欄位為常數。 |
MinValue |
代表 Int32 最小的可能值。 這個欄位為常數。 |
方法
明確介面實作
適用於
執行緒安全性
此類型的所有成員都是安全線程。 看似修改實例狀態的成員,實際上會傳回以新值初始化的新實例。 如同任何其他類型,讀取和寫入包含此類型實例的共用變數必須受到鎖定保護,以確保執行緒安全。