Tuple<T1,T2,T3,T4,T5> Classe

Definizione

generic <typename T1, typename T2, typename T3, typename T4, typename T5>
public ref class Tuple : IComparable, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable

generic <typename T1, typename T2, typename T3, typename T4, typename T5>
public ref class Tuple : IComparable, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable, System::Runtime::CompilerServices::ITuple

public class Tuple<T1,T2,T3,T4,T5> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable

public class Tuple<T1,T2,T3,T4,T5> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable, System.Runtime.CompilerServices.ITuple

[System.Serializable]
public class Tuple<T1,T2,T3,T4,T5> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable

type Tuple<'T1, 'T2, 'T3, 'T4, 'T5> = class
    interface IStructuralComparable
    interface IStructuralEquatable
    interface IComparable

type Tuple<'T1, 'T2, 'T3, 'T4, 'T5> = class
    interface IStructuralComparable
    interface IStructuralEquatable
    interface IComparable
    interface ITuple

[<System.Serializable>]
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5> = class
    interface IStructuralEquatable
    interface IStructuralComparable
    interface IComparable

[<System.Serializable>]
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5> = class
    interface IStructuralEquatable
    interface IStructuralComparable
    interface IComparable
    interface ITuple

Public Class Tuple(Of T1, T2, T3, T4, T5)
Implements IComparable, IStructuralComparable, IStructuralEquatable

Public Class Tuple(Of T1, T2, T3, T4, T5)
Implements IComparable, IStructuralComparable, IStructuralEquatable, ITuple

Parametri di tipo

Ereditarietà

Object

Tuple<T1,T2,T3,T4,T5>

Attributi

SerializableAttribute

Implementazioni

IStructuralComparable IStructuralEquatable IComparable ITuple

Commenti

Una tupla è una struttura di dati con un numero e una sequenza di valori specifici. La Tuple<T1,T2,T3,T4,T5> classe rappresenta una tupla a 5 o una quintupla, ovvero una tupla con cinque componenti.

È possibile creare un'istanza di un Tuple<T1,T2,T3,T4,T5> oggetto chiamando il Tuple<T1,T2,T3,T4,T5> costruttore o il metodo statico Tuple.Create<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5) . È possibile recuperare il valore dei componenti della tupla usando le proprietà dell'istanza di sola Item1lettura, , Item2Item3, Item4, e Item5 .

Le tuple vengono comunemente usate in quattro modi diversi:

• Per rappresentare un singolo set di dati. Ad esempio, una tupla può rappresentare un record di database e i relativi componenti possono rappresentare singoli campi del record.

• Per semplificare l'accesso e la manipolazione di un set di dati. Nell'esempio seguente viene definita una matrice di Tuple<T1,T2,T3,T4,T5> oggetti che contengono i nomi dei runback nel football americano, il numero di partite in cui hanno giocato e il numero di passaggi, i yard totali ottenuti e i touchdown segnati durante tali partite. La matrice viene passata al metodo , che calcola il numero di porta in esecuzione per gioco, i yard medi per partita, i ComputeStatistics yard medi per trasporto e il numero medio di touchdown per tentativo.

  using System;
  using System.Collections.Generic;
  
  public class Example
  {
     public static void Main()
     {
        // Organization of runningBacks 5-tuple:
        //    Component 1: Player name
        //    Component 2: Number of games played
        //    Component 3: Number of attempts (carries)
        //    Component 4: Number of yards gained 
        //    Component 5: Number of touchdowns   
        Tuple<string, int, int, int, int>[] runningBacks =
             { Tuple.Create("Payton, Walter", 190, 3838, 16726, 110),  
               Tuple.Create("Sanders, Barry", 153, 3062, 15269, 99),            
               Tuple.Create("Brown, Jim", 118, 2359, 12312, 106),            
               Tuple.Create("Dickerson, Eric", 144, 2996, 13259, 90),            
               Tuple.Create("Faulk, Marshall", 176, 2836, 12279, 100) }; 
        // Calculate statistics.
        // Organization of runningStats 5-tuple:
        //    Component 1: Player name
        //    Component 2: Number of attempts per game
        //    Component 3: Number of yards per game
        //    Component 4: Number of yards per attempt 
        //    Component 5: Number of touchdowns per attempt   
        Tuple<string, double, double, double, double>[] runningStats  = 
            ComputeStatistics(runningBacks);
  
        // Display the result.          
        Console.WriteLine("{0,-16} {1,5} {2,6} {3,7} {4,7} {5,7} {6,7} {7,5} {8,7}\n", 
                          "Name", "Games", "Att", "Att/Gm", "Yards", "Yds/Gm",
                          "Yds/Att", "TD", "TD/Att");
        for (int ctr = 0; ctr < runningBacks.Length; ctr++)
           Console.WriteLine("{0,-16} {1,5} {2,6:N0} {3,7:N1} {4,7:N0} {5,7:N1} {6,7:N2} {7,5} {8,7:N3}\n", 
                             runningBacks[ctr].Item1, runningBacks[ctr].Item2, runningBacks[ctr].Item3, 
                             runningStats[ctr].Item2, runningBacks[ctr].Item4, runningStats[ctr].Item3, 
                             runningStats[ctr].Item4, runningBacks[ctr].Item5, runningStats[ctr].Item5);
     }
  
     private static Tuple<string, double, double, double, double>[] ComputeStatistics(
                  Tuple<string, int, int, int, int>[] players) 
     {
        Tuple<string, double, double, double, double> result; 
        var list = new List<Tuple<string, double, double, double, double>>();
        
        foreach (var player in players)
        {
           // Create result object containing player name and statistics.
           result = Tuple.Create(player.Item1,  
                                 player.Item3/((double)player.Item2), 
                                 player.Item4/((double)player.Item2),
                                 player.Item4/((double)player.Item3), 
                                 player.Item5/((double)player.Item3));
           list.Add(result);         
        }
        return list.ToArray();  
     }
  }
  // The example displays the following output:
  //    Name             Games    Att  Att/Gm   Yards  Yds/Gm Yds/Att    TD  TD/Att
  //    
  //    Payton, Walter     190  3,838    20.2  16,726    88.0    4.36   110   0.029
  //    
  //    Sanders, Barry     153  3,062    20.0  15,269    99.8    4.99    99   0.032
  //    
  //    Brown, Jim         118  2,359    20.0  12,312   104.3    5.22   106   0.045
  //    
  //    Dickerson, Eric    144  2,996    20.8  13,259    92.1    4.43    90   0.030
  //    
  //    Faulk, Marshall    176  2,836    16.1  12,279    69.8    4.33   100   0.035
  

  open System
  
  let computeStatistics (players: Tuple<string, int, int, int, int>[]) = 
      [| for player in players do
          // Create result object containing player name and statistics.
          Tuple.Create(player.Item1,  
                       double player.Item3 / double player.Item2,
                       double player.Item4 / double player.Item2,
                       double player.Item4 / double player.Item3, 
                       double player.Item5 / double player.Item3) |]
  
  
  // Organization of runningBacks 5-tuple:
  //    Component 1: Player name
  //    Component 2: Number of games played
  //    Component 3: Number of attempts (carries)
  //    Component 4: Number of yards gained 
  //    Component 5: Number of touchdowns   
  let runningBacks =
      [| Tuple.Create("Payton, Walter", 190, 3838, 16726, 110)
         Tuple.Create("Sanders, Barry", 153, 3062, 15269, 99)
         Tuple.Create("Brown, Jim", 118, 2359, 12312, 106)
         Tuple.Create("Dickerson, Eric", 144, 2996, 13259, 90)
         Tuple.Create("Faulk, Marshall", 176, 2836, 12279, 100) |]
  // Calculate statistics.
  // Organization of runningStats 5-tuple:
  //    Component 1: Player name
  //    Component 2: Number of attempts per game
  //    Component 3: Number of yards per game
  //    Component 4: Number of yards per attempt 
  //    Component 5: Number of touchdowns per attempt   
  let runningStats = computeStatistics runningBacks
  
  // Display the result.          
  printfn "%-16s %5s %6s %7s %7s %7s %7s %5s %7s\n" "Name" "Games" "Att" "Att/Gm" "Yards" "Yds/Gm" "Yds/Att" "TD" "TD/Att"
  for i = 0 to runningBacks.Length - 1 do
      printfn $"{runningBacks[i].Item1,-16} {runningBacks[i].Item2,5} {runningBacks[i].Item3,6:N0} {runningBacks[i].Item2,7:N1} {runningBacks[i].Item4,7:N0} {runningBacks[i].Item3,7:N1} {runningBacks[i].Item4,7:N2} {runningBacks[i].Item5,5} {runningBacks[i].Item5,7:N3}\n" 
  
  // The example displays the following output:
  //    Name             Games    Att  Att/Gm   Yards  Yds/Gm Yds/Att    TD  TD/Att
  //    
  //    Payton, Walter     190  3,838    20.2  16,726    88.0    4.36   110   0.029
  //    
  //    Sanders, Barry     153  3,062    20.0  15,269    99.8    4.99    99   0.032
  //    
  //    Brown, Jim         118  2,359    20.0  12,312   104.3    5.22   106   0.045
  //    
  //    Dickerson, Eric    144  2,996    20.8  13,259    92.1    4.43    90   0.030
  //    
  //    Faulk, Marshall    176  2,836    16.1  12,279    69.8    4.33   100   0.035
  

  Imports System.Collections.Generic
  
  Module Example
     Public Sub Main()
        ' Organization of runningBacks 5-tuple:
        '    Component 1: Player name
        '    Component 2: Number of games played
        '    Component 3: Number of attempts (carries)
        '    Component 4: Number of yards gained 
        '    Component 5: Number of touchdowns   
        Dim runningBacks() =
            { Tuple.Create("Payton, Walter", 190, 3838, 16726, 110),  
              Tuple.Create("Sanders, Barry", 153, 3062, 15269, 99),            
              Tuple.Create("Brown, Jim", 118, 2359, 12312, 106),            
              Tuple.Create("Dickerson, Eric", 144, 2996, 13259, 90),            
              Tuple.Create("Faulk, Marshall", 176, 2836, 12279, 100) } 
        ' Calculate statistics.
        ' Organization of runningStats 5-tuple:
        '    Component 1: Player name
        '    Component 2: Number of attempts per game
        '    Component 3: Number of yards per game
        '    Component 4: Number of yards per attempt 
        '    Component 5: Number of touchdowns per attempt   
        Dim runningStats() = ComputeStatistics(runningBacks)
  
        ' Display the result.          
        Console.WriteLine("{0,-16} {1,5} {2,6} {3,7} {4,7} {5,7} {6,7} {7,5} {8,7}", 
                          "Name", "Games", "Att", "Att/Gm", "Yards", "Yds/Gm",
                          "Yds/Att", "TD", "TD/Att")
        Console.WriteLine()
        For ctr As Integer = 0 To runningBacks.Length - 1
           Console.WriteLine("{0,-16} {1,5} {2,6:N0} {3,7:N1} {4,7:N0} {5,7:N1} {6,7:N2} {7,5} {8,7:N3}", 
                             runningBacks(ctr).Item1, runningBacks(ctr).Item2, runningBacks(ctr).Item3, 
                             runningStats(ctr).Item2, runningBacks(ctr).Item4, runningStats(ctr).Item3, 
                             runningStats(ctr).Item4, runningBacks(ctr).Item5, runningStats(ctr).Item5)
           Console.WriteLine()  
        Next     
     End Sub
  
     Private Function ComputeStatistics(players() As Tuple(Of String, Integer, Integer, Integer, Integer)) _
                      As Tuple(Of String, Double, Double, Double, Double)()
  
        Dim result As Tuple(Of String, Double, Double, Double, Double)
        Dim list As New List(Of Tuple(Of String, Double, Double, Double, Double))()
        
        For Each player In players
           ' Create result object containing player name and statistics.
           result = Tuple.Create(player.Item1,  
                              player.Item3/player.Item2, player.Item4/player.Item2,
                              player.Item4/player.Item3, player.Item5/player.Item3)
           list.Add(result)         
        Next
        Return list.ToArray()  
     End Function
  End Module
  ' The example displays the following output:
  '    Name             Games    Att  Att/Gm   Yards  Yds/Gm Yds/Att    TD  TD/Att
  '    
  '    Payton, Walter     190  3,838    20.2  16,726    88.0    4.36   110   0.029
  '    
  '    Sanders, Barry     153  3,062    20.0  15,269    99.8    4.99    99   0.032
  '    
  '    Brown, Jim         118  2,359    20.0  12,312   104.3    5.22   106   0.045
  '    
  '    Dickerson, Eric    144  2,996    20.8  13,259    92.1    4.43    90   0.030
  '    
  '    Faulk, Marshall    176  2,836    16.1  12,279    69.8    4.33   100   0.035
  

• Per restituire più valori da un metodo senza l'uso di out parametri (in C#) o ByRef parametri (in Visual Basic). Ad esempio, l'esempio precedente restituisce le statistiche calcolate, insieme al nome del giocatore, in una matrice di Tuple<T1,T2,T3,T4,T5> oggetti.

• Per passare più valori a un metodo tramite un singolo parametro. Ad esempio, il Thread.Start(Object) metodo ha un singolo parametro che consente di fornire un valore al metodo eseguito dal thread all'avvio. Se si specifica un Tuple<T1,T2,T3,T4,T5> oggetto come argomento del metodo, è possibile fornire la routine di avvio del thread con cinque elementi di dati.

Vedi anche

• Tuple
• Tuple<T1>
• Tuple<T1,T2>
• Tuple<T1,T2,T3>
• Tuple<T1,T2,T3,T4>
• Tuple<T1,T2,T3,T4,T5,T6>
• Tuple<T1,T2,T3,T4,T5,T6,T7>
• Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>