本文整理汇总了VB.NET中System.Collections.Concurrent.ConcurrentDictionary<TKey,TValue>类的典型用法代码示例。如果您正苦于以下问题：VB.NET ConcurrentDictionary<TKey,TValue>类的具体用法？VB.NET ConcurrentDictionary<TKey,TValue>怎么用？VB.NET ConcurrentDictionary<TKey,TValue>使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ConcurrentDictionary<TKey,TValue>类的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: CD_Ctor
' 导入命名空间
Imports System.Collections.Concurrent
Imports System.Threading.Tasks
Class CD_Ctor
' Demonstrates:
' ConcurrentDictionary<TKey, TValue> ctor(concurrencyLevel, initialCapacity)
' ConcurrentDictionary<TKey, TValue>[TKey]
Shared Sub Main()
' We know how many items we want to insert into the ConcurrentDictionary.
' So set the initial capacity to some prime number above that, to ensure that
' the ConcurrentDictionary does not need to be resized while initializing it.
Dim NUMITEMS As Integer = 64
Dim initialCapacity As Integer = 101
' The higher the concurrencyLevel, the higher the theoretical number of operations
' that could be performed concurrently on the ConcurrentDictionary. However, global
' operations like resizing the dictionary take longer as the concurrencyLevel rises.
' For the purposes of this example, we'll compromise at numCores * 2.
Dim numProcs As Integer = Environment.ProcessorCount
Dim concurrencyLevel As Integer = numProcs * 2
' Construct the dictionary with the desired concurrencyLevel and initialCapacity
Dim cd As New ConcurrentDictionary(Of Integer, Integer)(concurrencyLevel, initialCapacity)
' Initialize the dictionary
For i As Integer = 0 To NUMITEMS - 1
cd(i) = i * i
Next
Console.WriteLine("The square of 23 is {0} (should be {1})", cd(23), 23 * 23)
End Sub
End Class