本文整理汇总了VB.NET中System.Linq.Queryable.Aggregate方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Queryable.Aggregate方法的具体用法？VB.NET Queryable.Aggregate怎么用？VB.NET Queryable.Aggregate使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了Queryable.Aggregate方法的3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: fruits
Dim fruits() As String = {"apple", "mango", "orange", "passionfruit", "grape"}
' Determine whether any string in the array is longer than "banana".
Dim longestName As String = _
fruits.AsQueryable().Aggregate( _
"banana", _
Function(ByVal longest, ByVal fruit) IIf(fruit.Length > longest.Length, fruit, longest), _
Function(ByVal fruit) fruit.ToUpper() _
)
MsgBox(String.Format( _
"The fruit with the longest name is {0}.", longestName) _
)输出：
The fruit with the longest name is PASSIONFRUIT.
示例2: ints
Dim ints() As Integer = {4, 8, 8, 3, 9, 0, 7, 8, 2}
' Count the even numbers in the array, using a seed value of 0.
Dim numEven As Integer = _
ints.AsQueryable().Aggregate( _
0, _
Function(ByVal total, ByVal number) _
IIf(number Mod 2 = 0, total + 1, total) _
)
MsgBox(String.Format("The number of even integers is: {0}", numEven))输出：
The number of even integers is: 6
示例3: words
Dim sentence As String = "the quick brown fox jumps over the lazy dog"
' Split the string into individual words.
Dim words() As String = sentence.Split(" "c)
' Use Aggregate() to prepend each word to the beginning of the
' new sentence to reverse the word order.
Dim reversed As String = _
words.AsQueryable().Aggregate( _
Function(ByVal workingSentence, ByVal nextWord) nextWord & " " & workingSentence _
)
MsgBox(reversed)输出：
dog lazy the over jumps fox brown quick the