[VB.NET Tips]线程传递参数四种方法

Thread线程启动方法,一般来说要么是一个无参数的方法,要么是一个带有object参数的方法并且在Start时传递参数的值。
但是我们可以利用一些技巧给方法传递不受限制的参数。这些方法又可以在实际使用过程相互融合。
方法简单直接上代码,供君参考。

Imports System.Threading Module Module1      Sub Main()          '第一种：在Start中传递参数值，但方法中的参数类型需为object类型         Dim t1 As New Thread(AddressOf CountNumber)         t1.Start(10)          '第二种：通过Lambda表达式创建线程,可以传递任意的参数         Dim t2 As New Thread(Sub()                                  PrintNumber(20)                              End Sub)         t2.Start()          '第三种：通过实例化类来传递参数,然后调用类方法         Dim c As New Count(10)         Dim t3 As New Thread(AddressOf c.CountNumber)         t3.Start()          '第四种：通过传递类或结构,以达到向方法传递多个参数         Dim p As New Person() With {             .FirstName = "严"，             .LastName = "查散"             }         Dim t4 As New Thread(AddressOf ShowName)         t4.Start(p)          Console.Read()      End Sub      '传递单个参数     Private Sub CountNumber(number As Object)          Dim sum As Integer          For i As Integer = 1 To Integer.Parse(number)              sum += i          Next          Console.WriteLine(sum)      End Sub      '传递非object参数     Private Sub PrintNumber(number As Integer)          Console.WriteLine(number)      End Sub      '把方法包装成类，在实例化时传递参数     Class Count          Dim number As Integer          Sub New(number As Integer)              Me.number = number          End Sub          Public Sub CountNumber()              Dim sum As Integer              For i As Integer = 1 To Integer.Parse(number)                  sum += i              Next              Console.WriteLine(sum)          End Sub      End Class      '传递一个类或结构达到传递多个参数     Private Sub ShowName(person As Object)          Dim myPerson As Person = CType(person, Person)          Console.WriteLine(myPerson.FirstName & myPerson.LastName)      End Sub      Class Person          Public Property FirstName As String         Public Property LastName As String      End Class  End Module