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VB.NET Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals方法代码示例

本文整理汇总了VB.NET中System.Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals方法的具体用法?VB.NET Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals怎么用?VB.NET Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Tuple<T1,T2,T3,T4,T5,T6>的用法示例。


在下文中一共展示了Tuple<T1,T2,T3,T4,T5,T6>.IStructuralEquatable.Equals方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: Example

' 导入命名空间
Imports System.Collections

Public Class RateComparer(Of T1, T2, T3, T4, T5, T6) : Implements IEqualityComparer
   Private argument As Integer = 0

   Public Overloads Function Equals(x As Object, y As Object) As Boolean _
                   Implements IEqualityComparer.Equals
      argument += 1
      If argument = 1 Then
         Return True
      Else
         Dim fx, fy As Double
         If typeof x Is Double Or typeof x Is Single Then
            fx = CDbl(x)
            fy = CDbl(y)
            Return Math.Round(fx * 1000).Equals(Math.Round(fy * 1000))
         Else
            Return x.Equals(y)
         End If
      End If   
   End Function
   
   Public Overloads Function GetHashCode(obj As Object) As Integer _
                    Implements IEqualityComparer.GetHashCode
      If TypeOf(obj) Is Single Or TypeOf(obj) Is Double Then
         Return Math.Round(CDbl(obj) * 1000).GetHashCode()
      Else
         Return obj.GetHashCode()
      End If
   End Function                
End Class

Module Example
   Public Sub Main()
      Dim rate1 = Tuple.Create("New York", .014505, -.1042733, 
                               .0354833, .093644, .0290792)
      Dim rate2 = Tuple.Create("Unknown City", .014505, -.1042733, 
                               .0354833, .093644, .0290792)
      Dim rate3 = Tuple.Create("Unknown City", .014505, -.1042733, 
                               .0354833, .093644, .029079)
      Dim rate4 = Tuple.Create("San Francisco", -.0332858, -.0512803, 
                               .0662544, .0728964, .0491912)
      Dim eq As IStructuralEquatable = rate1
      ' Compare first tuple with remaining two tuples.
      Console.WriteLine("{0} = ", rate1.ToString())
      Console.WriteLine("   {0} : {1}", rate2, 
                        eq.Equals(rate2, New RateComparer(Of String, Double, Double, Double, Double, Double)()))
      Console.WriteLine("   {0} : {1}", rate3, 
                        eq.Equals(rate3, New RateComparer(Of String, Double, Double, Double, Double, Double)()))
      Console.WriteLine("   {0} : {1}", rate4, 
                        eq.Equals(rate4, New RateComparer(Of String, Double, Double, Double, Double, Double)()))
   End Sub
End Module
开发者ID:VB.NET开发者,项目名称:System,代码行数:54,代码来源:Tuple.IStructuralEquatable.Equals

输出:

(New York, 0.014505, -0.1042733, 0.0354833, 0.093644, 0.0290792) =
(Unknown City, 0.014505, -0.1042733, 0.0354833, 0.093644, 0.0290792) : True
(Unknown City, 0.014505, -0.1042733, 0.0354833, 0.093644, 0.029079) : True
(San Francisco, -0.0332858, -0.0512803, 0.0662544, 0.0728964, 0.0491912) : False


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