这一段vb代码转成c#代码， 帮帮吧。

Question

 Private Function AscToChar(ByVal sAsc As String) As String

        Dim iLen As Integer
        Dim i As Integer

        On Error GoTo err_Trans

        AscToChar = ""
        iLen = CInt(Len(sAsc) / 2)
        For i = 0 To iLen - 1
            If CInt("&H" & Mid(sAsc, i * 2 + 1, 2)) < &H20 Then
                AscToChar = ""
                Exit Function
            Else
                AscToChar = AscToChar & Chr(CInt("&H" & Mid(sAsc, i * 2 + 1, 2)))
            End If
        Next i
exit_Trans:
        Exit Function
err_Trans:
        AscToChar = ""
        Resume exit_Trans
    End Function

Answer 1

private string AscToChar(string sAsc){ string functionReturnValue = null; int iLen = 0; int i = 0; // ERROR: Not supported in C#: OnErrorStatement functionReturnValue = ""; iLen = Convert.ToInt32(Strings.Len(sAsc) / 2); for (i = 0; i <= iLen - 1; i++) { if (Convert.ToInt32("&H" + Strings.Mid(sAsc, i * 2 + 1, 2)) < 0x20) { functionReturnValue = ""; return functionReturnValue; } else { functionReturnValue = functionReturnValue + Strings.Chr(Convert.ToInt32("&H" + Strings.Mid(sAsc, i * 2 + 1, 2))); } } exit_Trans: return functionReturnValue; err_Trans: functionReturnValue = ""; // ERROR: Not supported in C#: ResumeStatement return functionReturnValue;}