Tuple<T1,T2,T3,T4,T5,T6,T7> Class
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Represents a 7-tuple, or septuple.
generic <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
public ref class Tuple : IComparable, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable
generic <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
public ref class Tuple : IComparable, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable, System::Runtime::CompilerServices::ITuple
public class Tuple<T1,T2,T3,T4,T5,T6,T7> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable
public class Tuple<T1,T2,T3,T4,T5,T6,T7> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable, System.Runtime.CompilerServices.ITuple
[System.Serializable]
public class Tuple<T1,T2,T3,T4,T5,T6,T7> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7> = class
interface IStructuralComparable
interface IStructuralEquatable
interface IComparable
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7> = class
interface IStructuralComparable
interface IStructuralEquatable
interface IComparable
interface ITuple
[<System.Serializable>]
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7> = class
interface IStructuralEquatable
interface IStructuralComparable
interface IComparable
[<System.Serializable>]
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7> = class
interface IStructuralEquatable
interface IStructuralComparable
interface IComparable
interface ITuple
Public Class Tuple(Of T1, T2, T3, T4, T5, T6, T7)
Implements IComparable, IStructuralComparable, IStructuralEquatable
Public Class Tuple(Of T1, T2, T3, T4, T5, T6, T7)
Implements IComparable, IStructuralComparable, IStructuralEquatable, ITuple
- T1
The type of the tuple's first component.
- T2
The type of the tuple's second component.
- T3
The type of the tuple's third component.
- T4
The type of the tuple's fourth component.
- T5
The type of the tuple's fifth component.
- T6
The type of the tuple's sixth component.
- T7
The type of the tuple's seventh component.
- Inheritance
-
Tuple<T1,T2,T3,T4,T5,T6,T7>
- Attributes
- Implements
A tuple is a data structure that has a specific number and sequence of values. The Tuple<T1,T2,T3,T4,T5,T6,T7> class represents a 7-tuple, or septuple, which is a tuple that has seven components.
You can instantiate a Tuple<T1,T2,T3,T4,T5,T6,T7> object by calling either the Tuple<T1,T2,T3,T4,T5,T6,T7> or the static Tuple.Create<T1,T2,T3,T4,T5,T6,T7>(T1, T2, T3, T4, T5, T6, T7) method. You can retrieve the value of the tuple's components by using the read-only Item1, Item2, Item3, Item4, Item5, Item6, and Item7 instance properties.
Tuples are commonly used in four different ways:
To represent a single set of data. For example, a tuple can represent a database record, and its components can represent individual fields of the record.
To provide easy access to, and manipulation of, a data set. The following example defines a Tuple<T1,T2,T3,T4,T5,T6,T7> object that contains population data for New York City for each census from 1950 through 2000. The septuple is passed to the
ComputePopulationChange
method, which calculates the annual rate of change between censuses, as well as the annual rate of change for the entire 60 year period.using System; public class Example { public static void Main() { // Get population data for New York City, 1950-2000. var population = Tuple.Create("New York", 7891957, 7781984, 7894862, 7071639, 7322564, 8008278); var rate = ComputePopulationChange(population); // Display results. Console.WriteLine("Population Change, {0}, 1950-2000\n", population.Item1); Console.WriteLine("Year {0,10} {1,9}", "Population", "Annual Rate"); Console.WriteLine("1950 {0,10:N0} {1,11}", population.Item2, "NA"); Console.WriteLine("1960 {0,10:N0} {1,11:P2}", population.Item3, rate.Item2/10); Console.WriteLine("1970 {0,10:N0} {1,11:P2}", population.Item4, rate.Item3/10); Console.WriteLine("1980 {0,10:N0} {1,11:P2}", population.Item5, rate.Item4/10); Console.WriteLine("1990 {0,10:N0} {1,11:P2}", population.Item6, rate.Item5/10); Console.WriteLine("2000 {0,10:N0} {1,11:P2}", population.Item7, rate.Item6/10); Console.WriteLine("1950-2000 {0,10:N0} {1,11:P2}", "", rate.Item7/50); } private static Tuple<string, double, double, double, double, double, double> ComputePopulationChange( Tuple<string, int, int, int, int, int, int> data) { var rate = Tuple.Create(data.Item1, (double)(data.Item3 - data.Item2)/data.Item2, (double)(data.Item4 - data.Item3)/data.Item3, (double)(data.Item5 - data.Item4)/data.Item4, (double)(data.Item6 - data.Item5)/data.Item5, (double)(data.Item7 - data.Item6)/data.Item6, (double)(data.Item7 - data.Item2)/data.Item2 ); return rate; } } // The example displays the following output: // Population Change, New York, 1950-2000 // // Year Population Annual Rate // 1950 7,891,957 NA // 1960 7,781,984 -0.14 % // 1970 7,894,862 0.15 % // 1980 7,071,639 -1.04 % // 1990 7,322,564 0.35 % // 2000 8,008,278 0.94 % // 1950-2000 0.03 %
open System let computePopulationChange (data: Tuple<string, int, int, int, int, int, int>) = Tuple.Create(data.Item1, double (data.Item3 - data.Item2) / double data.Item2, double (data.Item4 - data.Item3) / double data.Item3, double (data.Item5 - data.Item4) / double data.Item4, double (data.Item6 - data.Item5) / double data.Item5, double (data.Item7 - data.Item6) / double data.Item6, double (data.Item7 - data.Item2) / double data.Item2) // Get population data for New York City, 1950-2000. let population = Tuple.Create("New York", 7891957, 7781984, 7894862, 7071639, 7322564, 8008278) let rate = computePopulationChange population // Display results. printfn $"Population Change, {population.Item1}, 1950-2000\n" printfn $"""Year {"Population",10} {"Annual Rate",9}""" printfn $"""1950 {population.Item2,10:N0} {"NA",11}""" printfn $"1960 {population.Item3,10:N0} {rate.Item2 / 10.,11:P2}" printfn $"1970 {population.Item4,10:N0} {rate.Item3 / 10.,11:P2}" printfn $"1980 {population.Item5,10:N0} {rate.Item4 / 10.,11:P2}" printfn $"1990 {population.Item6,10:N0} {rate.Item5 / 10.,11:P2}" printfn $"2000 {population.Item7,10:N0} {rate.Item6 / 10.,11:P2}" printfn $"""1950-2000 {"",10:N0} {rate.Item7 / 50.,11:P2}""" // The example displays the following output: // Population Change, New York, 1950-2000 // // Year Population Annual Rate // 1950 7,891,957 NA // 1960 7,781,984 -0.14 % // 1970 7,894,862 0.15 % // 1980 7,071,639 -1.04 % // 1990 7,322,564 0.35 % // 2000 8,008,278 0.94 % // 1950-2000 0.03 %
Module Example Public Sub Main() ' Get population data for New York City, 1950-2000. Dim population = Tuple.Create("New York", 7891957, 7781984, 7894862, 7071639, 7322564, 8008278) Dim rate = ComputePopulationChange(population) ' Display results. Console.WriteLine("Population Change, {0}, 1950-2000", population.Item1) Console.WriteLine() Console.WriteLine("Year {0,10} {1,9}", "Population", "Annual Rate") Console.WriteLine("1950 {0,10:N0} {1,11}", population.Item2, "NA") Console.WriteLine("1960 {0,10:N0} {1,11:P2}", population.Item3, rate.Item2/10) Console.WriteLine("1970 {0,10:N0} {1,11:P2}", population.Item4, rate.Item3/10) Console.WriteLine("1980 {0,10:N0} {1,11:P2}", population.Item5, rate.Item4/10) Console.WriteLine("1990 {0,10:N0} {1,11:P2}", population.Item6, rate.Item5/10) Console.WriteLine("2000 {0,10:N0} {1,11:P2}", population.Item7, rate.Item6/10) Console.WriteLine("1950-2000 {0,10:N0} {1,11:P2}", "", rate.Item7/50) End Sub ' Compute rate of population change by decade and overall. Private Function ComputePopulationChange(data As Tuple(Of String, Integer, Integer, Integer, Integer, Integer, Integer)) _ As Tuple(Of String, Double, Double, Double, Double, Double, Double) Dim rate = Tuple.Create( data.Item1, (data.Item3 - data.Item2)/data.Item2, (data.Item4 - data.Item3)/data.Item3, (data.Item5 - data.Item4)/data.Item4, (data.Item6 - data.Item5)/data.Item5, (data.Item7 - data.Item6)/data.Item6, (data.Item7 - data.Item2)/data.Item2 ) Return rate End Function End Module ' The example displays the following output: ' Population Change, New York, 1950-2000 ' ' Year Population Annual Rate ' 1950 7,891,957 NA ' 1960 7,781,984 -0.14 % ' 1970 7,894,862 0.15 % ' 1980 7,071,639 -1.04 % ' 1990 7,322,564 0.35 % ' 2000 8,008,278 0.94 % ' 1950-2000 0.03 %
To return multiple values from a method without the use of
out
parameters (in C#) orByRef
parameters (in Visual Basic). For example, the previous example returns its computed statistics, along with the city name, in a Tuple<T1,T2,T3,T4,T5,T6,T7> object.To pass multiple values to a method through a single parameter. For example, the Thread.Start(Object) method has a single parameter that lets you supply one value to the method that the thread executes at startup. If you supply a Tuple<T1,T2,T3,T4,T5,T6,T7> object as the method argument, you can supply the thread's startup routine with seven items of data.
Tuple<T1,T2,T3,T4,T5,T6,T7>(T1, T2, T3, T4, T5, T6, T7) |
Initializes a new instance of the Tuple<T1,T2,T3,T4,T5,T6,T7> class. |
Item1 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's first component. |
Item2 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's second component. |
Item3 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's third component. |
Item4 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's fourth component. |
Item5 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's fifth component. |
Item6 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's sixth component. |
Item7 |
Gets the value of the current Tuple<T1,T2,T3,T4,T5,T6,T7> object's seventh component. |
Equals(Object) |
Returns a value that indicates whether the current Tuple<T1,T2,T3,T4,T5,T6,T7> object is equal to a specified object. |
Get |
Returns the hash code for the current Tuple<T1,T2,T3,T4,T5,T6,T7> object. |
Get |
Gets the Type of the current instance. (Inherited from Object) |
Memberwise |
Creates a shallow copy of the current Object. (Inherited from Object) |
To |
Returns a string that represents the value of this Tuple<T1,T2,T3,T4,T5,T6,T7> instance. |
IComparable. |
Compares the current Tuple<T1,T2,T3,T4,T5,T6,T7> object to a specified object and returns an integer that indicates whether the current object is before, after, or in the same position as the specified object in the sort order. |
IStructural |
Compares the current Tuple<T1,T2,T3,T4,T5,T6,T7> object to a specified object by using a specified comparer, and returns an integer that indicates whether the current object is before, after, or in the same position as the specified object in the sort order. |
IStructural |
Returns a value that indicates whether the current Tuple<T1,T2,T3,T4,T5,T6,T7> object is equal to a specified object based on a specified comparison method. |
IStructural |
Calculates the hash code for the current Tuple<T1,T2,T3,T4,T5,T6,T7> object by using a specified computation method. |
ITuple. |
Gets the value of the specified |
ITuple. |
Gets the number of elements in the |
Deconstruct<T1,T2,T3,T4,T5,T6,T7>(Tuple<T1,T2,T3,T4,T5,T6,T7>, T1, T2, T3, T4, T5, T6, T7) |
Deconstructs a tuple with 7 elements into separate variables. |
To |
Converts an instance of the |
产品 | 版本 |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
UWP | 10.0 |