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示例1: ToArrayEx1
Structure Package
Public Company As String
Public Weight As Double
End Structure
Sub ToArrayEx1()
' Create a list of Package values.
Dim packages As New List(Of Package)(New Package() _
{New Package With {.Company = "Coho Vineyard", .Weight = 25.2},
New Package With {.Company = "Lucerne Publishing", .Weight = 18.7},
New Package With {.Company = "Wingtip Toys", .Weight = 6.0},
New Package With {.Company = "Adventure Works", .Weight = 33.8}})
' Project the Company values from each item in the list
' and put them into an array.
Dim companies() As String =
packages _
.Select(Function(pkg) pkg.Company) _
.ToArray()
' Display the results.
Dim output As New System.Text.StringBuilder
For Each company As String In companies
output.AppendLine(company)
Next
Console.WriteLine(output.ToString())
End Sub
输出:
Coho Vineyard Lucerne Publishing Wingtip Toys Adventure Works