ThreadStart不接受參數

Question

所以，我是VB.NET的新手，我想創建一個簡單的程序ping和掃描打開的端口。 但是，可以ping通，但是掃描端口不起作用，它會一直說“ ThreadStart不接受參數”，而且我也不知道如何解決它。無論如何，端口掃描部分的代碼是：

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
    For i As Integer = Start1.Value To End1.Value
        ' TT= temp threading
        Control.CheckForIllegalCrossThreadCalls = False
        Dim TT As New System.Threading.Thread(AddressOf ScanPort)
        TT.IsBackground = True
        TT.Start(i)
    Next
End Sub

Answer 1

？...因此使其接受參數？

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
    For i As Integer = start1.Value To end1.Value
        ' TT= temp threading
        Control.CheckForIllegalCrossThreadCalls = False
        Dim TT As New System.Threading.Thread(AddressOf ScanPort)
        TT.IsBackground = True
        TT.Start(i)
    Next
End Sub

Private Sub ScanPort(ByVal portToScan As Integer)
    Debug.Print("Scanning Port: " & portToScan)
    System.Threading.Thread.Sleep(1000)
End Sub

在Option Strict On上 ，它看起來像這樣：

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
    For i As Integer = CInt(start1.Value) To CInt(end1.Value)
        ' TT= temp threading
        Control.CheckForIllegalCrossThreadCalls = False
        Dim TT As New System.Threading.Thread(New ParameterizedThreadStart(AddressOf ScanPort))
        TT.IsBackground = True
        TT.Start(i)
    Next
End Sub

Private Sub ScanPort(ByVal portToScan As Object)
    Dim port As Integer = CType(portToScan, Integer)
    Debug.Print("Scanning Port: " & port)
    System.Threading.Thread.Sleep(1000)
End Sub