我一直在寻找一种方法将十进制值转换为二进制字符串,但迄今为止一直不成功。我发现很多方法将整数转换为二进制(例如How to convert a decimal number to a binary number with fixed bits,How to convert from decimal to binary .NET),但我希望能够转换十进制值(2.5,2374098.034286197548等)。有没有办法,还是没有办法来转换实际的十进制值?在VB.NET中将十进制转换为二进制
2
A
回答
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在我看来,没有真正合适的方法来转换数字与小数位(1.03,234.65),所以我决定做一些杂乱的工作。
Dim this As String = String.Empty
For Each Match As Match In Regex.Matches(BoxyBoxington.Text, "\d+")
If Match.Value.toDecimal <= Byte.MaxValue.toDecimal Then
this = this + Convert.ToString(Match.Value.toByte, 2).PadLeft(8, "0") + NewLine
ElseIf Match.Value.toDecimal <= Short.MaxValue.toDecimal Then
this = this + Convert.ToString(Match.Value.toShort, 2).PadLeft(16, "0") + NewLine
ElseIf Match.Value.toDecimal <= Integer.MaxValue.toDecimal Then
this = this + Convert.ToString(Match.Value.toInteger, 2).PadLeft(32, "0") + NewLine
ElseIf Match.Value.toDecimal <= Long.MaxValue.toDecimal Then
this = this + Convert.ToString(Match.Value.toLong, 2).PadLeft(64, "0") + NewLine
Else
Exit For
End If
Next
这需要分别在小数前后的数字,并根据它们所适合的最小整数类型进行转换。然后可以根据需要保存并根据所需保存方法的反向进行转换。
我的自定义扩展:
''' <summary>
''' Handles conversion of variable into Long Integer.
''' </summary>
''' <param name="X"></param>
''' <param name="I">Returned if conversion fails.</param>
''' <returns>Signed 64bit Integer</returns>
''' <remarks></remarks>
<Extension> _
Public Function toLong(Of T)(ByRef X As T, Optional I As Long = 0) As Long
Dim S As String = X.ToString
Try
If S = String.Empty Then
Return I
Else
Return Long.Parse(S)
End If
Catch
Dim result As String = String.Empty
Dim ReturnLong As Long
Dim Parsed As Byte
For Each Character In S.ToCharArray
If Character = "-" Then
If S.Substring(0, 1).ToString <> "-" Then
result = Character + result
End If
End If
If Character = "." Then
Exit For
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If Integer.TryParse(result, ReturnLong) Then
Return Integer.Parse(ReturnLong)
Else
If Double.Parse(result) > Double.Parse(Integer.MaxValue.ToString) Then
Return Integer.MaxValue
ElseIf Double.Parse(result) < Double.Parse(Integer.MinValue.ToString) Then
Return Integer.MinValue
Else
Return Integer.Parse(ReturnLong)
End If
End If
Else
Return I
End If
End Try
End Function
''' <summary>
''' Handles conversion of variable to Integer.
''' </summary>
''' <param name="X"></param>
''' <param name="I">Returned if conversion fails.</param>
''' <returns>Signed 32bit Integer</returns>
''' <remarks></remarks>
<Extension> _
Public Function toInteger(Of T)(ByRef X As T, Optional I As Integer = 0) As Integer
Dim S As String = X.ToString
Try
If S = String.Empty Then
Return I
Else
Return Integer.Parse(S)
End If
Catch
Dim result As String = String.Empty
Dim ReturnInt As Integer
Dim Parsed As Byte
For Each Character In S.ToCharArray
If Character = "-" Then
If S.Substring(0, 1).ToString <> "-" Then
result = Character + result
End If
End If
If Character = "." Then
Exit For
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If Integer.TryParse(result, ReturnInt) Then
Return Integer.Parse(ReturnInt)
Else
If Double.Parse(result) > Double.Parse(Integer.MaxValue.ToString) Then
Return Integer.MaxValue
ElseIf Double.Parse(result) < Double.Parse(Integer.MinValue.ToString) Then
Return Integer.MinValue
Else
Return Integer.Parse(ReturnInt)
End If
End If
Else
Return I
End If
End Try
End Function
''' <summary>
''' Handles conversion of variable to Short Integer.
''' </summary>
''' <param name="X"></param>
''' <param name="I">Returned if conversion fails.</param>
''' <returns>Signed 16bit Integer</returns>
''' <remarks></remarks>
<Extension> _
Public Function toShort(Of T)(ByRef X As T, Optional I As Short = 0) As Short
Dim S As String = X.ToString
Try
If S = String.Empty Then
Return I
Else
Return Short.Parse(S)
End If
Catch
Dim result As String = String.Empty
Dim ReturnShort As Short
Dim Parsed As Byte
For Each Character In S.ToCharArray
If Character = "-" Then
If S.Substring(0, 1).ToString <> "-" Then
result = Character + result
End If
End If
If Character = "." Then
Exit For
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If Short.TryParse(result, ReturnShort) Then
Return Short.Parse(ReturnShort)
Else
If Integer.Parse(result) > Integer.Parse(Short.MaxValue.ToString) Then
Return Short.MaxValue
ElseIf Integer.Parse(result) < Integer.Parse(Short.MinValue.ToString) Then
Return Short.MinValue
Else
Return Short.Parse(ReturnShort)
End If
End If
Else
Return I
End If
End Try
End Function
''' <summary>
''' Handles conversion of variable to Tiny Integer
''' </summary>
''' <param name="X"></param>
''' <param name="I">Returned if conversion fails.</param>
''' <returns>Signed 8bit Integer</returns>
''' <remarks></remarks>
<Extension> _
Public Function toSByte(Of T)(ByRef X As T, Optional I As SByte = 0) As SByte
Dim S As String = X.ToString
Try
If S = String.Empty Then
Return I
Else
Return SByte.Parse(S)
End If
Catch
Dim result As String = String.Empty
Dim ReturnByte As SByte
Dim Parsed As Byte
For Each Character In S.ToCharArray
If Character = "-" Then
If S.Substring(0, 1).ToString <> "-" Then
result = Character + result
End If
End If
If Character = "." Then
Exit For
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If SByte.TryParse(result, ReturnByte) Then
Return SByte.Parse(ReturnByte)
Else
If Short.Parse(result) > Short.Parse(SByte.MaxValue.ToString) Then
Return SByte.MaxValue
ElseIf Short.Parse(result) < Short.Parse(SByte.MinValue.ToString) Then
Return SByte.MinValue
Else
Return I
End If
End If
Else
Return I
End If
End Try
End Function
''' <summary>
''' Handles conversion of variable to Tiny Integer
''' </summary>
''' <param name="X"></param>
''' <param name="I">Returned if conversion fails.</param>
''' <returns>Unsigned 8bit Integer</returns>
''' <remarks></remarks>
<Extension> _
Public Function toByte(Of T)(ByRef X As T, Optional I As Byte = 0) As Byte
Dim S As String = X.ToString
Try
If S = String.Empty Then
Return I
Else
Return Byte.Parse(S)
End If
Catch
Dim result As String = String.Empty
Dim ReturnByte As Byte
Dim Parsed As Byte
For Each Character In S.ToCharArray
If Character = "-" Then
If S.Substring(0, 1).ToString <> "-" Then
Exit For
End If
End If
If Character = "." Then
Exit For
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If Byte.TryParse(result, ReturnByte) Then
Return Byte.Parse(ReturnByte)
Else
If Short.Parse(result) > Short.Parse(Byte.MaxValue.ToString) Then
Return Byte.MaxValue
ElseIf Short.Parse(result) < Short.Parse(Byte.MinValue.ToString) Then
Return Byte.MinValue
Else
Return I
End If
End If
Else
Return I
End If
End Try
End Function
<Extension> _
Public Function toDecimal(Of T)(X As T) As Decimal
Dim s As String = X.ToString
Try
If s = String.Empty Then
Return 0
Else
Return Decimal.Parse(s)
End If
Catch
Dim result As String = String.Empty
Dim ReturnDec As Decimal
Dim Parsed As Byte
For Each Character In s.ToCharArray
If Character = "-" Then
If s.Substring(0, 1).ToString <> "-" Then
result = Character + result
End If
End If
If Character = "." Then
result = result + Character
End If
If Byte.TryParse(Character, Parsed) Then
result = result + Parsed.ToString
End If
Next
If result <> String.Empty Then
If Decimal.TryParse(result, ReturnDec) Then
Return Decimal.Parse(ReturnDec)
Else
Return 0
End If
Else
Return 0
End If
End Try
End Function
它是不是很漂亮,但我认为这将很好地工作对我来说足够。使用
结果:
100.13 - 01100100和00001101
52000.500 - 00000000000000001100101100100000和0000000111110100
它需要一些工作,但是这是我想出了。如果任何人都可以找到一些改进,随时让我知道。
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我不知道任何内置的,不......你是否希望它作为二进制的二进制点,例如(十进制)2.5为“10.1” –
我不知道有多少位需要它,但我想要它在字节格式二进制(0000 0000,0000 0001)。 – ARidder101
'Decimal.GetBits()'? –