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vb.net给线程传参数 vb6 线程

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VB.NET中传递参数有哪些方式？byval
byref
Of
Optional
ParamArray
在Visual stdio 工程中写 public sub AA(
下面自动出现这五个.
vb.net给线程传参数你这个默认是指自动生成vb.net给线程传参数的方法(过程\函数)吗?
那么默认是值传递Byval
要是自己写函数.则无参为默认
在vb中传递参数的方法有几种？分别是？2种,传值和传址,下面简单介绍一下 。
byref:缺省方式 ， 按地址传 ， 例如函数A调用函数B，按地址传递变量c作为参数，传递后如B在执行过程中改变c的值，则A中c的值也将改变为B执行后c的值 。
byval：按值传 。例如函数A调用函数B，按值传递变量c作为参数，传递后不管B在执行过程中是否改变c的值，A中c的值保持调用B之前的值不变 。
vb.net 如何传递类参数线程结束后利用委托生成事件返回，线程应用包括传入和传出参数 。
Public Delegate Sub ThreadCallback(value As ThreadResult)
Public Class Form1
Private WithEvents _th_1 As Thread_1
Protected Overrides Sub OnLoad(e As System.EventArgs)
Dim value As ThreadObject
value.Index = 1
Me._th_1 = New Thread_1(Me)
Me._th_1.Run(value)
MyBase.OnLoad(e)
End Sub
Private Sub Thread_1_End(sender As Object, e As ThreadEventArgs) Handles _th_1.ThreadEnd
Me.TextBox1.Text = e.Result.Text
End Sub
End Class
Public Class Thread_1
Public Event ThreadEnd(sender As Object, e As ThreadEventArgs)
Private _control As Control
Sub New(control As Control)
Me._control = control
End Sub
Public Sub Run(value As Object)
Dim th As New Threading.Thread(AddressOf ThreadProc)
th.Start(value)
End Sub
Private Sub ThreadProc(obj As Object)
Dim value As ThreadObject = CType(obj, ThreadObject)
Dim result As ThreadResult = Nothing
If value.Index = 1 Then result.Text = "测试"
Dim callback As New ThreadCallback(AddressOf ThreadInvoke)
_control.Invoke(callback, result)
End Sub
Private Sub ThreadInvoke(value As ThreadResult)
RaiseEvent ThreadEnd(Me, New ThreadEventArgs(value))
End Sub
End Class
Public Structure ThreadObject
Public Index As Integer
'Public Rect As Rectangle
End Structure
Public Structure ThreadResult
Public Text As String
'Public Rect As Rectangle
End Structure
Public Class ThreadEventArgs
Inherits System.EventArgs
Private _result As ThreadResult
Public ReadOnly Property Result As ThreadResult
Get
Return _result
End Get
End Property
Sub New(value As ThreadResult)
Me._result = value
End Sub
End Class
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