共用方式為

SignificantDigitsNumberRounder 類別

  • 參考

定義

命名空間:
Windows.Globalization.NumberFormatting
編輯

將數位四捨五入為指定的有效位數。

public ref class SignificantDigitsNumberRounder sealed : INumberRounder
/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class SignificantDigitsNumberRounder final : INumberRounder
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class SignificantDigitsNumberRounder final : INumberRounder
[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class SignificantDigitsNumberRounder : INumberRounder
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class SignificantDigitsNumberRounder : INumberRounder
function SignificantDigitsNumberRounder()
Public NotInheritable Class SignificantDigitsNumberRounder
Implements INumberRounder
繼承
Object Platform::Object IInspectable SignificantDigitsNumberRounder
屬性
ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute
實作
INumberRounder

Windows 需求

裝置系列
Windows 10 (已於 10.0.10240.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v1.0 引進)

建構函式

SignificantDigitsNumberRounder()

建立 SignificantDigitsNumberRounder 物件。

此建構函式會將 RoundingAlgorithm 初始化為 RoundingAlgorithm的預設值。RoundHalfUp和 SignificantDigits 到 0。

屬性

RoundingAlgorithm

取得或設定這個 SignificantDigitsNumberRounder 物件的四捨五入策略值。
SignificantDigits

取得或設定 這個 SignificantDigitsNumberRounder 物件用於四捨五入的有效位數。

方法

RoundDouble(Double)

將 Double 數位四捨五入為指定的有效位數。
RoundInt32(Int32)

將 Int32 數位四捨五入為指定的有效位數。
RoundInt64(Int64)

將 Int64 數位四捨五入為指定的有效位數。
RoundSingle(Single)

將 單 一數位四捨五入為指定的有效位數。
RoundUInt32(UInt32)

將 UInt32 數位四捨五入為指定的有效位數。
RoundUInt64(UInt64)

將 UInt64 數位四捨五入為指定的有效位數。

適用於

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