Tuple<T1,T2>.ToString 方法

定义

返回表示此 Tuple<T1,T2> 实例的值的字符串。Returns a string that represents the value of this Tuple<T1,T2> instance.

public:
 override System::String ^ ToString();
public override string ToString ();
override this.ToString : unit -> string
Public Overrides Function ToString () As String

返回

Tuple<T1,T2> 对象的字符串表示形式。The string representation of this Tuple<T1,T2> object.

示例

下面的示例演示ToString方法。The following example illustrates the ToString method.

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)
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)

注解

此方法返回的字符串采用格式 (Item1, Item2), 其中Item1Item1 Item2表示和Item2属性的值。The string returned by this method takes the form (Item1, Item2), where Item1 and Item2 represent the values of the Item1 and Item2 properties. 如果任一属性值为null, 则将其表示String.Empty为。If either property value is null, it is represented as String.Empty.

适用于