[VB.NET]串口接收过程中怎样将末尾3位字符数据去掉？

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串口接收过程中怎样将末尾3位字符数据去掉？
代码如下：
数据显示为999.9E+0 ，怎样把后面的E+0去掉？
Public Sub ReceiveSerialData_GR()
Dim iReceivedbytes As Integer, i As Integer
Dim bReadByte() As Byte
Dim SendReady As Boolean
Dim strReceiveBytes As String
Try
SerialPort1.PortName = COM1
SerialPort1.Open()
SerialPort1.RtsEnable = True
SerialPort1.Write(Order + vbCrLf)
SendReady = SerialPort1.CtsHolding
Thread.Sleep(100)
If SendReady = True Then
MsgBox( Ready )
Else
MsgBox( Not Ready )
End If
iReceivedbytes = SerialPort1.BytesToRead buffer中所有字节数

ReDim bReadByte(iReceivedbytes - 1)

SerialPort1.Read(bReadByte, 0, iReceivedbytes)
For i = 0 To iReceivedbytes - 1
strReceiveBytes = CStr(bReadByte(i))
strReceiveBytes = Asc(bReadByte(i) + 32)
Aod = Chr(IIf(Len(strReceiveBytes) > 1, strReceiveBytes, 0 & strReceiveBytes) & )
MsgBox(Aod)
TextBox1.Text = TextBox1.Text + Aod
TextBox1.Text = Microsoft.VisualBasic.Right(TextBox1.Text, 14)
Next
MsgBox(SerialPort1.ReadChar)
If iReceivedbytes > 0 Then
TextBox1.Text = TextBox1.Text + SerialPort1.ReadChar
Else
SerialPort1.RtsEnable = False
SerialPort1.Close()
End If
Catch ex As Exception
MsgBox( 接收失败 )
End Try
End Sub
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坐个沙发不容易啊..up
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自己顶一下 !
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看看
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接完了SubString
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说的详细点好么?
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str为你接收后的字符

str.Substring(0,str.LastIndexOf( E ));
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可能大小写上有点问题，到IDE中写一下就可以了。
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str1为你接收后的字符
p as integer

p=str1.length-3

str1.substring(0,p)
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xuexi
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