Decimal 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。
代表十進位浮點數。
public value class System::Decimal : IComparable, IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, IFormattable
public value class System::Decimal : IComparable, IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, IFormattable, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable
public value class System::Decimal : IComparable, IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, ISpanFormattable, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable
public value class System::Decimal : IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, IParsable<System::Decimal>, ISpanParsable<System::Decimal>, System::Numerics::IAdditionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IAdditiveIdentity<System::Decimal, System::Decimal>, System::Numerics::IComparisonOperators<System::Decimal, System::Decimal, bool>, System::Numerics::IDecrementOperators<System::Decimal>, System::Numerics::IDivisionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IEqualityOperators<System::Decimal, System::Decimal, bool>, System::Numerics::IFloatingPoint<System::Decimal>, System::Numerics::IFloatingPointConstants<System::Decimal>, System::Numerics::IIncrementOperators<System::Decimal>, System::Numerics::IMinMaxValue<System::Decimal>, System::Numerics::IModulusOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IMultiplicativeIdentity<System::Decimal, System::Decimal>, System::Numerics::IMultiplyOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::INumber<System::Decimal>, System::Numerics::INumberBase<System::Decimal>, System::Numerics::ISignedNumber<System::Decimal>, System::Numerics::ISubtractionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IUnaryNegationOperators<System::Decimal, System::Decimal>, System::Numerics::IUnaryPlusOperators<System::Decimal, System::Decimal>, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable
public value class System::Decimal : IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, IParsable<System::Decimal>, ISpanParsable<System::Decimal>, IUtf8SpanFormattable, IUtf8SpanParsable<System::Decimal>, System::Numerics::IAdditionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IAdditiveIdentity<System::Decimal, System::Decimal>, System::Numerics::IComparisonOperators<System::Decimal, System::Decimal, bool>, System::Numerics::IDecrementOperators<System::Decimal>, System::Numerics::IDivisionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IEqualityOperators<System::Decimal, System::Decimal, bool>, System::Numerics::IFloatingPoint<System::Decimal>, System::Numerics::IFloatingPointConstants<System::Decimal>, System::Numerics::IIncrementOperators<System::Decimal>, System::Numerics::IMinMaxValue<System::Decimal>, System::Numerics::IModulusOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IMultiplicativeIdentity<System::Decimal, System::Decimal>, System::Numerics::IMultiplyOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::INumber<System::Decimal>, System::Numerics::INumberBase<System::Decimal>, System::Numerics::ISignedNumber<System::Decimal>, System::Numerics::ISubtractionOperators<System::Decimal, System::Decimal, System::Decimal>, System::Numerics::IUnaryNegationOperators<System::Decimal, System::Decimal>, System::Numerics::IUnaryPlusOperators<System::Decimal, System::Decimal>, System::Runtime::Serialization::IDeserializationCallback, System::Runtime::Serialization::ISerializable
public value class System::Decimal : IComparable, IComparable<System::Decimal>, IConvertible, IEquatable<System::Decimal>, IFormattable, System::Runtime::Serialization::IDeserializationCallback
public value class System::Decimal : IComparable, IConvertible, IFormattable
public value class System::Decimal : IComparable, IComparable<System::Decimal>, IEquatable<System::Decimal>, IFormattable
public struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable
public readonly struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
public readonly struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, ISpanFormattable, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
public readonly struct Decimal : IComparable<decimal>, IConvertible, IEquatable<decimal>, IParsable<decimal>, ISpanParsable<decimal>, System.Numerics.IAdditionOperators<decimal,decimal,decimal>, System.Numerics.IAdditiveIdentity<decimal,decimal>, System.Numerics.IComparisonOperators<decimal,decimal,bool>, System.Numerics.IDecrementOperators<decimal>, System.Numerics.IDivisionOperators<decimal,decimal,decimal>, System.Numerics.IEqualityOperators<decimal,decimal,bool>, System.Numerics.IFloatingPoint<decimal>, System.Numerics.IFloatingPointConstants<decimal>, System.Numerics.IIncrementOperators<decimal>, System.Numerics.IMinMaxValue<decimal>, System.Numerics.IModulusOperators<decimal,decimal,decimal>, System.Numerics.IMultiplicativeIdentity<decimal,decimal>, System.Numerics.IMultiplyOperators<decimal,decimal,decimal>, System.Numerics.INumber<decimal>, System.Numerics.INumberBase<decimal>, System.Numerics.ISignedNumber<decimal>, System.Numerics.ISubtractionOperators<decimal,decimal,decimal>, System.Numerics.IUnaryNegationOperators<decimal,decimal>, System.Numerics.IUnaryPlusOperators<decimal,decimal>, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
public readonly struct Decimal : IComparable<decimal>, IConvertible, IEquatable<decimal>, IParsable<decimal>, ISpanParsable<decimal>, IUtf8SpanFormattable, IUtf8SpanParsable<decimal>, System.Numerics.IAdditionOperators<decimal,decimal,decimal>, System.Numerics.IAdditiveIdentity<decimal,decimal>, System.Numerics.IComparisonOperators<decimal,decimal,bool>, System.Numerics.IDecrementOperators<decimal>, System.Numerics.IDivisionOperators<decimal,decimal,decimal>, System.Numerics.IEqualityOperators<decimal,decimal,bool>, System.Numerics.IFloatingPoint<decimal>, System.Numerics.IFloatingPointConstants<decimal>, System.Numerics.IIncrementOperators<decimal>, System.Numerics.IMinMaxValue<decimal>, System.Numerics.IModulusOperators<decimal,decimal,decimal>, System.Numerics.IMultiplicativeIdentity<decimal,decimal>, System.Numerics.IMultiplyOperators<decimal,decimal,decimal>, System.Numerics.INumber<decimal>, System.Numerics.INumberBase<decimal>, System.Numerics.ISignedNumber<decimal>, System.Numerics.ISubtractionOperators<decimal,decimal,decimal>, System.Numerics.IUnaryNegationOperators<decimal,decimal>, System.Numerics.IUnaryPlusOperators<decimal,decimal>, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
public struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable, System.Runtime.Serialization.IDeserializationCallback
public readonly struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable, System.Runtime.Serialization.IDeserializationCallback
[System.Serializable]
public struct Decimal : IComparable, IConvertible, IFormattable
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public struct Decimal : IComparable, IComparable<decimal>, IConvertible, IEquatable<decimal>, IFormattable, System.Runtime.Serialization.IDeserializationCallback
public struct Decimal : IComparable, IComparable<decimal>, IEquatable<decimal>, IFormattable
type decimal = struct
interface IConvertible
interface IFormattable
type decimal = struct
interface IConvertible
interface IFormattable
interface IDeserializationCallback
interface ISerializable
type decimal = struct
interface IConvertible
interface ISpanFormattable
interface IFormattable
interface IDeserializationCallback
interface ISerializable
type decimal = struct
interface IConvertible
interface IFormattable
interface IParsable<decimal>
interface ISpanFormattable
interface ISpanParsable<decimal>
interface IAdditionOperators<decimal, decimal, decimal>
interface IAdditiveIdentity<decimal, decimal>
interface IComparisonOperators<decimal, decimal, bool>
interface IEqualityOperators<decimal, decimal, bool>
interface IDecrementOperators<decimal>
interface IDivisionOperators<decimal, decimal, decimal>
interface IFloatingPoint<decimal>
interface IFloatingPointConstants<decimal>
interface INumberBase<decimal>
interface IIncrementOperators<decimal>
interface IMultiplicativeIdentity<decimal, decimal>
interface IMultiplyOperators<decimal, decimal, decimal>
interface ISubtractionOperators<decimal, decimal, decimal>
interface IUnaryNegationOperators<decimal, decimal>
interface IUnaryPlusOperators<decimal, decimal>
interface IModulusOperators<decimal, decimal, decimal>
interface INumber<decimal>
interface ISignedNumber<decimal>
interface IMinMaxValue<decimal>
interface IDeserializationCallback
interface ISerializable
type decimal = struct
interface IConvertible
interface IFormattable
interface IParsable<decimal>
interface ISpanFormattable
interface ISpanParsable<decimal>
interface IAdditionOperators<decimal, decimal, decimal>
interface IAdditiveIdentity<decimal, decimal>
interface IComparisonOperators<decimal, decimal, bool>
interface IEqualityOperators<decimal, decimal, bool>
interface IDecrementOperators<decimal>
interface IDivisionOperators<decimal, decimal, decimal>
interface IFloatingPoint<decimal>
interface IFloatingPointConstants<decimal>
interface INumberBase<decimal>
interface IIncrementOperators<decimal>
interface IMultiplicativeIdentity<decimal, decimal>
interface IMultiplyOperators<decimal, decimal, decimal>
interface ISubtractionOperators<decimal, decimal, decimal>
interface IUnaryNegationOperators<decimal, decimal>
interface IUnaryPlusOperators<decimal, decimal>
interface IUtf8SpanParsable<decimal>
interface IModulusOperators<decimal, decimal, decimal>
interface INumber<decimal>
interface ISignedNumber<decimal>
interface IMinMaxValue<decimal>
interface IDeserializationCallback
interface ISerializable
interface IUtf8SpanFormattable
type decimal = struct
interface IConvertible
interface IFormattable
interface IDeserializationCallback
[<System.Serializable>]
type decimal = struct
interface IFormattable
interface IConvertible
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type decimal = struct
interface IFormattable
interface IConvertible
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type decimal = struct
interface IFormattable
interface IConvertible
interface IDeserializationCallback
type decimal = struct
interface IFormattable
Public Structure Decimal
Implements IComparable, IComparable(Of Decimal), IConvertible, IEquatable(Of Decimal), IFormattable
Public Structure Decimal
Implements IComparable, IComparable(Of Decimal), IConvertible, IDeserializationCallback, IEquatable(Of Decimal), IFormattable, ISerializable
Public Structure Decimal
Implements IComparable, IComparable(Of Decimal), IConvertible, IDeserializationCallback, IEquatable(Of Decimal), ISerializable, ISpanFormattable
Public Structure Decimal
Implements IAdditionOperators(Of Decimal, Decimal, Decimal), IAdditiveIdentity(Of Decimal, Decimal), IComparable(Of Decimal), IComparisonOperators(Of Decimal, Decimal, Boolean), IConvertible, IDecrementOperators(Of Decimal), IDeserializationCallback, IDivisionOperators(Of Decimal, Decimal, Decimal), IEqualityOperators(Of Decimal, Decimal, Boolean), IEquatable(Of Decimal), IFloatingPoint(Of Decimal), IFloatingPointConstants(Of Decimal), IIncrementOperators(Of Decimal), IMinMaxValue(Of Decimal), IModulusOperators(Of Decimal, Decimal, Decimal), IMultiplicativeIdentity(Of Decimal, Decimal), IMultiplyOperators(Of Decimal, Decimal, Decimal), INumber(Of Decimal), INumberBase(Of Decimal), IParsable(Of Decimal), ISerializable, ISignedNumber(Of Decimal), ISpanParsable(Of Decimal), ISubtractionOperators(Of Decimal, Decimal, Decimal), IUnaryNegationOperators(Of Decimal, Decimal), IUnaryPlusOperators(Of Decimal, Decimal)
Public Structure Decimal
Implements IAdditionOperators(Of Decimal, Decimal, Decimal), IAdditiveIdentity(Of Decimal, Decimal), IComparable(Of Decimal), IComparisonOperators(Of Decimal, Decimal, Boolean), IConvertible, IDecrementOperators(Of Decimal), IDeserializationCallback, IDivisionOperators(Of Decimal, Decimal, Decimal), IEqualityOperators(Of Decimal, Decimal, Boolean), IEquatable(Of Decimal), IFloatingPoint(Of Decimal), IFloatingPointConstants(Of Decimal), IIncrementOperators(Of Decimal), IMinMaxValue(Of Decimal), IModulusOperators(Of Decimal, Decimal, Decimal), IMultiplicativeIdentity(Of Decimal, Decimal), IMultiplyOperators(Of Decimal, Decimal, Decimal), INumber(Of Decimal), INumberBase(Of Decimal), IParsable(Of Decimal), ISerializable, ISignedNumber(Of Decimal), ISpanParsable(Of Decimal), ISubtractionOperators(Of Decimal, Decimal, Decimal), IUnaryNegationOperators(Of Decimal, Decimal), IUnaryPlusOperators(Of Decimal, Decimal), IUtf8SpanFormattable, IUtf8SpanParsable(Of Decimal)
Public Structure Decimal
Implements IComparable, IComparable(Of Decimal), IConvertible, IDeserializationCallback, IEquatable(Of Decimal), IFormattable
Public Structure Decimal
Implements IComparable, IConvertible, IFormattable
Public Structure Decimal
Implements IComparable, IComparable(Of Decimal), IEquatable(Of Decimal), IFormattable
- 繼承
- 屬性
- 實作
-
IComparable IComparable<Decimal> IConvertible IEquatable<Decimal> IFormattable IDeserializationCallback ISerializable ISpanFormattable IComparable<TSelf> IEquatable<TSelf> IParsable<Decimal> IParsable<TSelf> ISpanParsable<Decimal> ISpanParsable<TSelf> IAdditionOperators<Decimal,Decimal,Decimal> IAdditionOperators<TSelf,TSelf,TSelf> IAdditiveIdentity<Decimal,Decimal> IAdditiveIdentity<TSelf,TSelf> IComparisonOperators<Decimal,Decimal,Boolean> IComparisonOperators<TSelf,TSelf,Boolean> IDecrementOperators<Decimal> IDecrementOperators<TSelf> IDivisionOperators<Decimal,Decimal,Decimal> IDivisionOperators<TSelf,TSelf,TSelf> IEqualityOperators<Decimal,Decimal,Boolean> IEqualityOperators<TSelf,TOther,TResult> IEqualityOperators<TSelf,TSelf,Boolean> IFloatingPoint<Decimal> IFloatingPointConstants<Decimal> IFloatingPointConstants<TSelf> IIncrementOperators<Decimal> IIncrementOperators<TSelf> IMinMaxValue<Decimal> IModulusOperators<Decimal,Decimal,Decimal> IModulusOperators<TSelf,TSelf,TSelf> IMultiplicativeIdentity<Decimal,Decimal> IMultiplicativeIdentity<TSelf,TSelf> IMultiplyOperators<Decimal,Decimal,Decimal> IMultiplyOperators<TSelf,TSelf,TSelf> INumber<Decimal> INumber<TSelf> INumberBase<Decimal> INumberBase<TSelf> ISignedNumber<Decimal> ISignedNumber<TSelf> ISubtractionOperators<Decimal,Decimal,Decimal> ISubtractionOperators<TSelf,TSelf,TSelf> IUnaryNegationOperators<Decimal,Decimal> IUnaryNegationOperators<TSelf,TSelf> IUnaryPlusOperators<Decimal,Decimal> IUnaryPlusOperators<TSelf,TSelf> IUtf8SpanFormattable IUtf8SpanParsable<Decimal> IUtf8SpanParsable<TSelf>
範例
下列程式碼範例示範 Decimal 的用法。
/// <summary>
/// Keeping my fortune in Decimals to avoid the round-off errors.
/// </summary>
public ref class PiggyBank
{
protected:
Decimal MyFortune;
public:
void AddPenny()
{
MyFortune = System::Decimal::Add( MyFortune, Decimal(.01) );
}
System::Decimal Capacity()
{
return MyFortune.MaxValue;
}
Decimal Dollars()
{
return Decimal::Floor( MyFortune );
}
Decimal Cents()
{
return Decimal::Subtract( MyFortune, Decimal::Floor( MyFortune ) );
}
virtual System::String^ ToString() override
{
return MyFortune.ToString("C")+" in piggy bank";
}
};
}
/// <summary>
/// Keeping my fortune in Decimals to avoid the round-off errors.
/// </summary>
class PiggyBank {
protected decimal MyFortune;
public void AddPenny() {
MyFortune = Decimal.Add(MyFortune, .01m);
}
public decimal Capacity {
get {
return Decimal.MaxValue;
}
}
public decimal Dollars {
get {
return Decimal.Floor(MyFortune);
}
}
public decimal Cents {
get {
return Decimal.Subtract(MyFortune, Decimal.Floor(MyFortune));
}
}
public override string ToString() {
return MyFortune.ToString("C")+" in piggy bank";
}
}
/// Keeping my fortune in Decimals to avoid the round-off errors.
type PiggyBank() =
let mutable myFortune = 0m
member _.AddPenny() =
myFortune <- Decimal.Add(myFortune, 0.01m)
member _.Capacity =
Decimal.MaxValue
member _.Dollars =
Decimal.Floor myFortune
member _.Cents =
Decimal.Subtract(myFortune, Decimal.Floor myFortune)
override _.ToString() =
$"{myFortune:C} in piggy bank"
' Keeping my fortune in Decimals to avoid the round-off errors.
Class PiggyBank
Protected MyFortune As Decimal
Public Sub AddPenny()
MyFortune = [Decimal].Add(MyFortune, 0.01D)
End Sub
Public ReadOnly Property Capacity() As Decimal
Get
Return [Decimal].MaxValue
End Get
End Property
Public ReadOnly Property Dollars() As Decimal
Get
Return [Decimal].Floor(MyFortune)
End Get
End Property
Public ReadOnly Property Cents() As Decimal
Get
Return [Decimal].Subtract(MyFortune, [Decimal].Floor(MyFortune))
End Get
End Property
Public Overrides Function ToString() As String
Return MyFortune.ToString("C") + " in piggy bank"
End Function
End Class
備註
Decimal實值型別代表小數位數,範圍從正 79,228,162,514,264,337,593,543,950,335 至負 79,228,162,514,264,337,593,543,950,335。 的 Decimal
預設值為 0。 實 Decimal 值型別適用于需要大量有效整數和小數位數且無進位錯誤的財務計算。 此 Decimal 類型不會消除舍入的需求。 它會將因進位而產生的錯誤降到最低。 例如,下列程式碼會產生 0.999999999999999999999999999999999999 而不是 1 的結果。
using namespace System;
void main()
{
Decimal dividend = Decimal::One;
Decimal divisor = 3;
// The following displays 0.9999999999999999999999999999 to the console
Console::WriteLine(dividend/divisor * divisor);
}
decimal dividend = Decimal.One;
decimal divisor = 3;
// The following displays 0.9999999999999999999999999999 to the console
Console.WriteLine(dividend/divisor * divisor);
let dividend = Decimal.One
let divisor = 3m
// The following displays 0.9999999999999999999999999999 to the console
printfn $"{dividend/divisor * divisor}"
Dim dividend As Decimal = Decimal.One
Dim divisor As Decimal = 3
' The following displays 0.9999999999999999999999999999 to the console
Console.WriteLine(dividend/divisor * divisor)
當除法和乘法的結果傳遞至 Round 方法時,結果不會遺失精確度,如下列程式碼所示。
using namespace System;
void main()
{
Decimal dividend = Decimal::One;
Decimal divisor = 3;
// The following displays 1.00 to the console
Console::WriteLine(Math::Round(dividend/divisor * divisor, 2));
}
decimal dividend = Decimal.One;
decimal divisor = 3;
// The following displays 1.00 to the console
Console.WriteLine(Math.Round(dividend/divisor * divisor, 2));
let dividend = Decimal.One
let divisor = 3m
// The following displays 1.00 to the console
printfn $"{Math.Round(dividend/divisor * divisor, 2)}"
Dim dividend As Decimal = Decimal.One
Dim divisor As Decimal = 3
' The following displays 1.00 to the console
Console.WriteLine(Math.Round(dividend/divisor * divisor, 2))
十進位數是浮點數,由符號組成、數值,其中值中的每個數位範圍介於 0 到 9 之間,以及指出分隔數值整數和小數部分之浮點位置的縮放比例。
值的二進位表示 Decimal
法是 128 位,由 96 位整陣列成,而 32 位的旗標則代表用來指定小數小數部分的符號和縮放比例等專案。 因此,表單 ( (-296到96的二進位表示 Decimal 法,) / 10 ( 0 到 2) 8) ,其中 - (296-1) MinValue 等於 ,而 296-1等於 MaxValue 。 如需值二進位表示 Decimal 法和範例的詳細資訊,請參閱建 Decimal(Int32[]) 構函式和 GetBits 方法。
縮放比例也會保留數位中的任何 Decimal 尾端零。 尾端零不會影響算術或比較運算中數位的值 Decimal 。 不過,如果套用適當的格式字串,方法可能會顯示 ToString 尾端零。
轉換考慮
此類型提供方法,可將值轉換成 、、、 Int32UInt16UInt32ByteInt64 和 UInt64 值。 Int16DecimalSByte 從這些整數型 Decimal 別轉換成 的轉換,是永遠不會遺失資訊或擲回例外狀況的擴輾轉換。
從 Decimal 轉換成任何整數類型的轉換,會將值四舍 Decimal 五入為最接近整數值為零的轉換。 某些語言,例如 C# 也支援將值 Char 轉換成 Decimal 值。 如果這些轉換的結果無法在目的地類型中表示, OverflowException 則會擲回例外狀況。
此 Decimal 類型也提供將值轉換成 Decimal 和 SingleDouble 值的方法。 從 DecimalSingle 轉換為 或 Double 的轉換可能會失去有效位數,但無法瞭解已轉換值的大小資訊。 轉換不會擲回例外狀況。
如果轉換的結果無法表示 Decimal 為 ,則從 Single 或 Double 轉換擲 DecimalOverflowException 回例外狀況。
對十進位值執行作業
此 Decimal 類型支援標準數學運算,例如加法、減法、除法、乘法和一元負數。 您也可以呼叫 GetBits 方法,直接使用值的二進位表示 Decimal 法。
若要比較兩個 Decimal 值,您可以使用標準數值比較運算子,也可以呼叫 CompareTo 或 Equals 方法。
您也可以呼叫 類別的成員 Math 來執行各種不同的數值運算,包括取得數位的絕對值、判斷兩 Decimal 個值的最大值或最小值、取得數位的正負號,以及四捨五入數位。
建構函式
Decimal(Double) |
將 Decimal 的新執行個體初始化為指定雙精確度浮點數的值。 |
Decimal(Int32) |
將 Decimal 的新執行個體初始化為指定 32 位元帶正負號整數的值。 |
Decimal(Int32, Int32, Int32, Boolean, Byte) |
從指定執行個體組成部分的參數,初始化 Decimal 的新執行個體。 |
Decimal(Int32[]) |
將 Decimal 的新執行個體初始化為以二進位表示並包含在指定陣列中的十進位值。 |
Decimal(Int64) |
將 Decimal 的新執行個體初始化為指定 64 位元帶正負號整數的值。 |
Decimal(ReadOnlySpan<Int32>) |
將 Decimal 的新執行個體初始化為十進位值,以二進位表示,並包含在指定範圍內。 |
Decimal(Single) |
將 Decimal 的新執行個體初始化為指定單精確度浮點數的值。 |
Decimal(UInt32) |
將 Decimal 的新執行個體初始化為指定 32 位元不帶正負號整數的值。 |
Decimal(UInt64) |
將 Decimal 的新執行個體初始化為指定 64 位元不帶正負號整數的值。 |
欄位
MaxValue |
代表 Decimal 最大的可能值。 這個欄位是不變且唯讀的。 |
MinusOne |
表示數字負一 (-1)。 |
MinValue |
代表 Decimal 最小的可能值。 這個欄位是不變且唯讀的。 |
One |
表示數字一 (1)。 |
Zero |
表示數字零 (0)。 |
屬性
Scale |
取得小數的縮放比例,這是從 0 到 28 的數位,代表十進位數的數目。 |
方法
運算子
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。