從動態字符串分割固定長度的字符串Vb.net

我正在VB 2010中開發一個應用程序，其中我正在通過串行端口向PLC發送命令並從PLC接收字符串中的數據。從PLC收到從動態字符串分割固定長度的字符串Vb.net

我已刪除了字符串的不必要的內容，並獲得最終的字符串中ReturnStr如下：

Dim WriteStr, ChkWrite As String 
Dim ReadStr, ReturnStr, ChkRecd, ChkCalc As String 
Dim ChkComp As Integer 

    WriteStr = String.Concat("01", cmd, Add, Points) 
    ChkWrite = Check(WriteStr) 

    Try 
     sp.WriteLine(":" & WriteStr & ChkWrite & vbCr) 
     ReadStr = sp.ReadLine() 
    Catch ReadErr As Exception 
     Return "0" 
    End Try 

    ChkRecd = ReadStr.Substring((((CInt("&H" & Points)) * 4) + 7), 2) 
    ChkCalc = Check(ReadStr.Substring(1, ((Len(ReadStr) - 4)))) 
    ChkComp = String.Compare(ChkRecd, ChkCalc) 

    If ChkComp <> 0 Then 
     Return "0" 
    End If 

    ReturnStr = (ReadStr.Substring(7)).Remove(CInt("&H" & (Points)) * 4) 
    Return ReturnStr

ReturnStr返回字符串像006600D000C9006D0013B003A00014C00349，我想分成一組每個4個字符。

我的查詢是ReturnStr可能包含無限長度的數據（以4的倍數），所以我怎麼去從每個子這樣的字符串，顯示值分割字符串標籤的形式是這樣的：

lblPt1.Text = CInt("&h" & (ReturnStr.Substring(0, 4))) 
lblPt2.Text = CInt("&h" & (ReturnStr.Substring(4, 4))) 
lblPt3.Text = CInt("&h" & (ReturnStr.Substring(8, 4))) 
lblPt4.Text = CInt("&h" & (ReturnStr.Substring(12, 4))) 
lblPt5.Text = CInt("&h" & (ReturnStr.Substring(16, 4))) 
lblPt6.Text = CInt("&h" & (ReturnStr.Substring(20, 4))) 
lblPt7.Text = CInt("&h" & (ReturnStr.Substring(24, 4))) 
lblPt8.Text = CInt("&h" & (ReturnStr.Substring(28, 4)))

來源

2016-08-05 Prashant

有[很少]（http://stackoverflow.com/questions/8774392/how-to-split-a-string-by-x-amount-of-characters）[例子]（http：///stackoverflow.com/questions/7376987/how-to-split-a-string-into-a-fixed-length-string-array）[in]（http://stackoverflow.com/questions/30385540/how-do -i-split-a-string-every-7-charecter-in-vb？noredirect = 1＆lq = 1）該網站。 –

Dim s = "006600D000C9006D0013B003A00014C00349" 
Dim a = From i In Enumerable.Range(0, s.Length \ 4) Select Mid(s, i * 4, 4)

更新

有關更新問題

Dim labels = { lblPt1, lblPt2, lblPt3, lblPt4, lblPt5, lblPt6, lblPt7, lblPt8 } 
' or query them from Me.Controls.OfType(Of Label) or just use ListBox or better conrol 
ReturnStr = ReturnStr.PadRight(labels.Length * 4) 

For i = 0 To labels.Length - 1 
    labels(i).Text = Val("&h" & Mid(ReturnStr, i * 4, 4)) 
Next

來源

2016-08-05 12:56:12 Slai

從動態字符串分割固定長度的字符串Vb.net

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