Tuple<T1,T2,T3>.Equals(Object) 方法

参考

定义

命名空间:: System

程序集:: System.Runtime.dll

程序集:: mscorlib.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

返回一个值，该值指示当前的 Tuple<T1,T2,T3> 对象是否与指定对象相等。

public:
 override bool Equals(System::Object ^ obj);

public override bool Equals (object obj);

public override bool Equals (object? obj);

override this.Equals : obj -> bool

Public Overrides Function Equals (obj As Object) As Boolean

参数

obj: Object

与该实例进行比较的对象。

Boolean

如果当前实例等于指定对象，则为 true；否则为 false。

示例

以下示例调用 Tuple<T1,T2,T3>.Equals(Object) 该方法以确定对象数组 Tuple<T1,T2,T3> 中的任何对象是否彼此相等。输出反映了该方法在比较Tuple<T1,T2,T3>组件具有相等值的对象时返回true的事实Equals(Object)。

using System;

public class Example
{
   public static void Main()
   {
      Tuple<string, double, int>[] scores = 
                      { Tuple.Create("Ed", 78.8, 8),
                        Tuple.Create("Abbey", 92.1, 9), 
                        Tuple.Create("Ed", 71.2, 9),
                        Tuple.Create("Sam", 91.7, 8), 
                        Tuple.Create("Ed", 71.2, 5),
                        Tuple.Create("Penelope", 82.9, 8),
                        Tuple.Create("Ed", 71.2, 9),
                        Tuple.Create("Judith", 84.3, 9) };

      // Test each tuple object for equality with every other tuple.
      for (int ctr = 0; ctr < scores.Length; ctr++)
      {
         var currentTuple = scores[ctr];
         for (int ctr2 = ctr + 1; ctr2 < scores.Length; ctr2++)
            Console.WriteLine("{0} = {1}: {2}", currentTuple, scores[ctr2], 
                                                currentTuple.Equals(scores[ctr2]));      

         Console.WriteLine();
      }   
   }
}
// The example displays the following output;
//    (Ed, 78.8, 8) = (Abbey, 92.1, 9): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
//    (Ed, 78.8, 8) = (Sam, 91.7, 8): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 5): False
//    (Ed, 78.8, 8) = (Penelope, 82.9, 8): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
//    (Ed, 78.8, 8) = (Judith, 84.3, 9): False
//    
//    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
//    (Abbey, 92.1, 9) = (Sam, 91.7, 8): False
//    (Abbey, 92.1, 9) = (Ed, 71.2, 5): False
//    (Abbey, 92.1, 9) = (Penelope, 82.9, 8): False
//    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
//    (Abbey, 92.1, 9) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 9) = (Sam, 91.7, 8): False
//    (Ed, 71.2, 9) = (Ed, 71.2, 5): False
//    (Ed, 71.2, 9) = (Penelope, 82.9, 8): False
//    (Ed, 71.2, 9) = (Ed, 71.2, 9): True
//    (Ed, 71.2, 9) = (Judith, 84.3, 9): False
//    
//    (Sam, 91.7, 8) = (Ed, 71.2, 5): False
//    (Sam, 91.7, 8) = (Penelope, 82.9, 8): False
//    (Sam, 91.7, 8) = (Ed, 71.2, 9): False
//    (Sam, 91.7, 8) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 5) = (Penelope, 82.9, 8): False
//    (Ed, 71.2, 5) = (Ed, 71.2, 9): False
//    (Ed, 71.2, 5) = (Judith, 84.3, 9): False
//    
//    (Penelope, 82.9, 8) = (Ed, 71.2, 9): False
//    (Penelope, 82.9, 8) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 9) = (Judith, 84.3, 9): False

open System

let scores = 
    [| Tuple.Create("Ed", 78.8, 8)
       Tuple.Create("Abbey", 92.1, 9)
       Tuple.Create("Ed", 71.2, 9)
       Tuple.Create("Sam", 91.7, 8)
       Tuple.Create("Ed", 71.2, 5)
       Tuple.Create("Penelope", 82.9, 8)
       Tuple.Create("Ed", 71.2, 9)
       Tuple.Create("Judith", 84.3, 9) |]

// Test each tuple object for equality with every other tuple.
for ctr = 0 to scores.Length - 1 do
    let currentTuple = scores[ctr]
    for ctr2 = ctr + 1 to scores.Length - 1 do
        printfn $"{currentTuple} = {scores[ctr2]}: {currentTuple.Equals scores[ctr2]}"
    printfn ""

// The example displays the following output
//    (Ed, 78.8, 8) = (Abbey, 92.1, 9): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
//    (Ed, 78.8, 8) = (Sam, 91.7, 8): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 5): False
//    (Ed, 78.8, 8) = (Penelope, 82.9, 8): False
//    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
//    (Ed, 78.8, 8) = (Judith, 84.3, 9): False
//    
//    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
//    (Abbey, 92.1, 9) = (Sam, 91.7, 8): False
//    (Abbey, 92.1, 9) = (Ed, 71.2, 5): False
//    (Abbey, 92.1, 9) = (Penelope, 82.9, 8): False
//    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
//    (Abbey, 92.1, 9) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 9) = (Sam, 91.7, 8): False
//    (Ed, 71.2, 9) = (Ed, 71.2, 5): False
//    (Ed, 71.2, 9) = (Penelope, 82.9, 8): False
//    (Ed, 71.2, 9) = (Ed, 71.2, 9): True
//    (Ed, 71.2, 9) = (Judith, 84.3, 9): False
//    
//    (Sam, 91.7, 8) = (Ed, 71.2, 5): False
//    (Sam, 91.7, 8) = (Penelope, 82.9, 8): False
//    (Sam, 91.7, 8) = (Ed, 71.2, 9): False
//    (Sam, 91.7, 8) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 5) = (Penelope, 82.9, 8): False
//    (Ed, 71.2, 5) = (Ed, 71.2, 9): False
//    (Ed, 71.2, 5) = (Judith, 84.3, 9): False
//    
//    (Penelope, 82.9, 8) = (Ed, 71.2, 9): False
//    (Penelope, 82.9, 8) = (Judith, 84.3, 9): False
//    
//    (Ed, 71.2, 9) = (Judith, 84.3, 9): False

Module Example
   Public Sub Main()
      Dim scores() = 
              { Tuple.Create("Ed", 78.8, 8),
                Tuple.Create("Abbey", 92.1, 9), 
                Tuple.Create("Ed", 71.2, 9),
                Tuple.Create("Sam", 91.7, 8), 
                Tuple.Create("Ed", 71.2, 5),
                Tuple.Create("Penelope", 82.9, 8),
                Tuple.Create("Ed", 71.2, 9),
                Tuple.Create("Judith", 84.3, 9) }

      ' Test each tuple object for equality with every other tuple.
      For ctr As Integer = 0 To scores.Length - 1
         Dim currentTuple = scores(ctr)
         For ctr2 As Integer = ctr + 1 To scores.Length - 1
            Console.WriteLine("{0} = {1}: {2}", currentTuple, scores(ctr2), 
                                                currentTuple.Equals(scores(ctr2)))      
         Next
         Console.WriteLine()
      Next
   End Sub
End Module
' The example displays the following output;
'    (Ed, 78.8, 8) = (Abbey, 92.1, 9): False
'    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
'    (Ed, 78.8, 8) = (Sam, 91.7, 8): False
'    (Ed, 78.8, 8) = (Ed, 71.2, 5): False
'    (Ed, 78.8, 8) = (Penelope, 82.9, 8): False
'    (Ed, 78.8, 8) = (Ed, 71.2, 9): False
'    (Ed, 78.8, 8) = (Judith, 84.3, 9): False
'    
'    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
'    (Abbey, 92.1, 9) = (Sam, 91.7, 8): False
'    (Abbey, 92.1, 9) = (Ed, 71.2, 5): False
'    (Abbey, 92.1, 9) = (Penelope, 82.9, 8): False
'    (Abbey, 92.1, 9) = (Ed, 71.2, 9): False
'    (Abbey, 92.1, 9) = (Judith, 84.3, 9): False
'    
'    (Ed, 71.2, 9) = (Sam, 91.7, 8): False
'    (Ed, 71.2, 9) = (Ed, 71.2, 5): False
'    (Ed, 71.2, 9) = (Penelope, 82.9, 8): False
'    (Ed, 71.2, 9) = (Ed, 71.2, 9): True
'    (Ed, 71.2, 9) = (Judith, 84.3, 9): False
'    
'    (Sam, 91.7, 8) = (Ed, 71.2, 5): False
'    (Sam, 91.7, 8) = (Penelope, 82.9, 8): False
'    (Sam, 91.7, 8) = (Ed, 71.2, 9): False
'    (Sam, 91.7, 8) = (Judith, 84.3, 9): False
'    
'    (Ed, 71.2, 5) = (Penelope, 82.9, 8): False
'    (Ed, 71.2, 5) = (Ed, 71.2, 9): False
'    (Ed, 71.2, 5) = (Judith, 84.3, 9): False
'    
'    (Penelope, 82.9, 8) = (Ed, 71.2, 9): False
'    (Penelope, 82.9, 8) = (Judith, 84.3, 9): False
'    
'    (Ed, 71.2, 9) = (Judith, 84.3, 9): False

注解

该 obj 参数被视为在以下条件下等于当前实例：

它是一个 Tuple<T1,T2,T3> 对象。
其三个组件的类型与当前实例相同。
它的三个组件等于当前实例的组件。相等性取决于每个组件的默认对象相等比较器。

适用于

Tuple<T1,T2,T3>.Equals(Object) 方法

定义

参数

返回

示例

注解

适用于

其他资源