Tuple<T1,T2>.ToString 方法

定義

命名空間:

System

組件:

System.Runtime.dll

來源:

Tuple.cs

傳回字串，表示這個 Tuple<T1,T2> 執行個體的值。

public:
 override System::String ^ ToString();

public override string ToString ();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

傳回

String

此 Tuple<T1,T2> 物件的字串表示。

範例

下列範例說明 ToString 方法。

using System;

public class Class1
{
   public static void Main()
   {
      Tuple<string, Nullable<int>>[] scores = 
                      { new Tuple<string, Nullable<int>>("Abbey", 92), 
                        new Tuple<string, Nullable<int>>("Dave", 88),
                        new Tuple<string, Nullable<int>>("Ed", null),
                        new Tuple<string, Nullable<int>>("Jack", 78),
                        new Tuple<string, Nullable<int>>("Linda", 99),
                        new Tuple<string, Nullable<int>>("Judith", 84), 
                        new Tuple<string, Nullable<int>>("Penelope", 82),
                        new Tuple<string, Nullable<int>>("Sam", 91) }; 
      foreach (var score in scores)
         Console.WriteLine(score.ToString());
   }
}
// The example displays the following output:
//       (Abbey, 92)
//       (Dave, 88)
//       (Ed, )
//       (Jack, 78)
//       (Linda, 99)
//       (Judith, 84)
//       (Penelope, 82)
//       (Sam, 91)

open System

let scores = 
    [| Tuple<string, Nullable<int>>("Abbey", 92) 
       Tuple<string, Nullable<int>>("Dave", 88)
       Tuple<string, Nullable<int>>("Ed", Nullable())
       Tuple<string, Nullable<int>>("Jack", 78)
       Tuple<string, Nullable<int>>("Linda", 99)
       Tuple<string, Nullable<int>>("Judith", 84)
       Tuple<string, Nullable<int>>("Penelope", 82)
       Tuple<string, Nullable<int>>("Sam", 91) |]
for score in scores do
    printfn $"{score.ToString()}"
// The example displays the following output:
//       (Abbey, 92)
//       (Dave, 88)
//       (Ed, )
//       (Jack, 78)
//       (Linda, 99)
//       (Judith, 84)
//       (Penelope, 82)
//       (Sam, 91)

Module modMain
   Public Sub Main()
      Dim scores() As Tuple(Of String, Nullable(Of Integer)) = 
                      { New Tuple(Of String, Nullable(Of Integer))("Abbey", 92), 
                        New Tuple(Of String, Nullable(Of Integer))("Dave", 88),
                        New Tuple(Of String, Nullable(Of Integer))("Ed", Nothing),                        New Tuple(Of String, Nullable(Of Integer))("Jack", 78),
                        New Tuple(Of String, Nullable(Of Integer))("Linda", 99),
                        New Tuple(Of String, Nullable(Of Integer))("Judith", 84), 
                        New Tuple(Of String, Nullable(Of Integer))("Penelope", 82),
                        New Tuple(Of String, Nullable(Of Integer))("Sam", 91) } 
      For Each score In scores
         Console.WriteLine(score.ToString())
      Next                        
   End Sub
End Module
' The example displays the following output:
'       (Abbey, 92)
'       (Dave, 88)
'       (Ed, )
'       (Jack, 78)
'       (Linda, 99)
'       (Judith, 84)
'       (Penelope, 82)
'       (Sam, 91)

備註

這個方法傳回的字串 (格式為Item1、Item2) ，其中Item1和Item2代表 和 Item2 屬性的值 Item1 。 如果任一屬性值為 null ，則表示為 String.Empty 。