本文整理汇总了VB.NET中System.Linq.Enumerable.Select方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Enumerable.Select方法的具体用法?VB.NET Enumerable.Select怎么用?VB.NET Enumerable.Select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Enumerable.Select方法的2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
' Create an array of strings.
Dim fruits() As String =
{"apple", "banana", "mango", "orange", "passionfruit", "grape"}
' Project each item in the array to an anonymous type
' that stores the item's index in the array and
' a substring of each item whose length is equal
' to the index position in the original array.
Dim query =
fruits.Select(Function(fruit, index) _
New With {index, .Str = fruit.Substring(0, index)})
Dim output As New System.Text.StringBuilder
For Each obj In query
output.AppendLine(obj.ToString())
Next
' Display the output.
Console.WriteLine(output.ToString())
输出:
{ index = 0, Str = } { index = 1, Str = b } { index = 2, Str = ma } { index = 3, Str = ora } { index = 4, Str = pass } { index = 5, Str = grape }
示例2: IEnumerable
' Create a collection of sequential integers
' from 1 to 10 and project their squares.
Dim squares As IEnumerable(Of Integer) =
Enumerable.Range(1, 10).Select(Function(x) x * x)
Dim output As New System.Text.StringBuilder
For Each num As Integer In squares
output.AppendLine(num)
Next
' Display the output.
Console.WriteLine(output.ToString())
输出:
1 4 9 16 25 36 49 64 81 100