Tuple<T1,T2,T3,T4>.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,T3,T4> 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,T3,T4> 物件的字串表示。

範例

下列範例說明 ToString 方法。 它會顯示 4 元組物件的陣列元件，其中包含城市名稱、一年一個月，以及該月份的高和低平均溫度。

using System;

public class Example
{
   public static void Main()
   {
      Tuple<string, int, int, int>[] temperatures = 
            { Tuple.Create("New York, NY", 4, 61, 43),
              Tuple.Create("Chicago, IL", 2, 34, 18), 
              Tuple.Create("Newark, NJ", 4, 61, 43),
              Tuple.Create("Boston, MA", 6, 77, 59),
              Tuple.Create("Detroit, MI", 9, 74, 53),
              Tuple.Create("Minneapolis, MN", 8, 81, 61) }; 
      // Display the array of 4-tuple objects.
      foreach (var temperature in temperatures)
         Console.WriteLine(temperature.ToString()); 
   }
}
// The example displays the following output:
//       (New York, NY, 4, 61, 43)
//       (Chicago, IL, 2, 34, 18)
//       (Newark, NJ, 4, 61, 43)
//       (Boston, MA, 6, 77, 59)
//       (Detroit, MI, 9, 74, 53)
//       (Minneapolis, MN, 8, 81, 61)

open System

let temperatures = 
    [| Tuple.Create("New York, NY", 4, 61, 43)
       Tuple.Create("Chicago, IL", 2, 34, 18)
       Tuple.Create("Newark, NJ", 4, 61, 43)
       Tuple.Create("Boston, MA", 6, 77, 59)
       Tuple.Create("Detroit, MI", 9, 74, 53)
       Tuple.Create("Minneapolis, MN", 8, 81, 61) |]

// Display the array of 4-tuple objects.
for temperature in temperatures do
    printfn $"{temperature}"
// The example displays the following output:
//       (New York, NY, 4, 61, 43)
//       (Chicago, IL, 2, 34, 18)
//       (Newark, NJ, 4, 61, 43)
//       (Boston, MA, 6, 77, 59)
//       (Detroit, MI, 9, 74, 53)
//       (Minneapolis, MN, 8, 81, 61)

Module Example
   Public Sub Main()
      Dim temperatures() = 
             { Tuple.Create("New York, NY", 4, 61, 43), _
               Tuple.Create("Chicago, IL", 2, 34, 18), _ 
               Tuple.Create("Newark, NJ", 4, 61, 43), _
               Tuple.Create("Boston, MA", 6, 77, 59), _
               Tuple.Create("Detroit, MI", 9, 74, 53), _
               Tuple.Create("Minneapolis, MN", 8, 81, 61) } 
      ' Display the array of 4-tuple objects.
      For Each temperature In temperatures
         Console.WriteLine(temperature.ToString())
      Next
   End Sub
End Module
' The example displays the following output:
'       (New York, NY, 4, 61, 43)
'       (Chicago, IL, 2, 34, 18)
'       (Newark, NJ, 4, 61, 43)
'       (Boston, MA, 6, 77, 59)
'       (Detroit, MI, 9, 74, 53)
'       (Minneapolis, MN, 8, 81, 61)

備註

這個方法傳回的字串 (格式為Item1、Item2、Item3、Item4) ，其中Item1、Item2、Item3和Item4分別代表 、 Item2 、 Item3 和 Item4 屬性的值 Item1 。 如果任一屬性值為 null ，則會以 表示。 String.Empty