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Private Sub Form_Load()
MSComm1.CommPort = 1
MSComm1.Settings = "9600,N,8,1"
MSComm1.PortOpen = True
MSComm1.InputMode = comInputModeBinary
MSComm1.RThreshold = 1
Dim a As Long
End Sub

Private Sub MSComm1_OnComm()
Dim BytesReceived() As Byte
  Dim buffer As String
  Dim HData As String
  Dim i As Integer
  Select Case MSComm1.CommEvent
  Case comEvReceive '½ÓÊÕÊ®Áù½øÖÆÊý¾Ý¡£²¢ÒÔÊ®Áù½øÖÆÏÔʾ
  MSComm1.InputLen = 0
  buffer = MSComm1.Input '½ÓÊÕÊý¾ÝÖÁ×Ö·û´®ÖÐ
  BytesReceived() = buffer '½«Êý¾ÝתÈëByteÊý×éÖÐ
  For i = 0 To UBound(BytesReceived) 'ÏÔʾ½á¹ûÒÔÊ®Áù½øÖÆÏÔʾ
  If Len(Hex(BytesReceived(i))) = 1 Then
  HData = HData & "0" & Hex(BytesReceived(i))
  Else
  HData = HData & Hex(BytesReceived(i))
  End If
  Text1.Text = HData
  '×îºó½«½á¹ûºóÈëText1ÖÐ
  MSComm1.OutBufferCount = 0 'Çå³ý·¢ËÍ»º³åÇø
  MSComm1.InBufferCount = 0 'Çå³ý½ÓÊÕ»º³åÇø
  Next
  End Select
End Sub
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