VB十进制进制十六进制二进制相互转换函数.docx

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VB十进制进制十六进制二进制相互转换函数.docx

VB十进制进制十六进制二进制相互转换函数VB-二进制,十进制，八进制，十六进制，相互转换函数 1.用途：将十进制转化为二进制 ' 输入：Dec(十进制数) ' 输入数据类型：Long ' 输出：DEC_to_BIN(二进制数) ' 输出数据类型：String ' 输入的最大数为2147483647,输出最大数为1111111111111111111111111111111(31个1) Public Function DEC_to_BIN(Dec As Long) As String DEC_to_BIN = "" Do While Dec > 0 DEC_to_BIN = Dec Mod 2 & DEC_to_BIN Dec = Dec 2 Loop End Function '2. 用途：将二进制转化为十进制 ' 输入：Bin(二进制数) ' 输入数据类型：String ' 输出：BIN_to_DEC(十进制数) ' 输出数据类型：Long ' 输入的最大数为1111111111111111111111111111111(31个1),输出最大数为2147483647 Public Function BIN_to_DEC(ByVal Bin As String) As Long Dim i As Long For i = 1 To Len(Bin) BIN_to_DEC = BIN_to_DEC * 2 + Val(Mid(Bin, i, 1) Next i End Function ' 3.用途：将十六进制转化为二进制 ' 输入：Hex(十六进制数) ' 输入数据类型：String ' 输出：HEX_to_BIN(二进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function HEX_to_BIN(ByVal Hex As String) As String Dim i As Long Dim B As String Hex = UCase(Hex) For i = 1 To Len(Hex) Select Case Mid(Hex, i, 1) Case "0": B = B & "0000" Case "1": B = B & "0001" Case "2": B = B & "0010" Case "3": B = B & "0011" Case "4": B = B & "0100" Case "5": B = B & "0101" Case "6": B = B & "0110" Case "7": B = B & "0111" Case "8": B = B & "1000" Case "9": B = B & "1001" Case "A": B = B & "1010" Case "B": B = B & "1011" Case "C": B = B & "1100" Case "D": B = B & "1101" Case "E": B = B & "1110" Case "F": B = B & "1111" End Select Next i While Left(B, 1) = "0" B = Right(B, Len(B) - 1) Wend HEX_to_BIN = B End Function ' 4.用途：将二进制转化为十六进制 ' 输入：Bin(二进制数) ' 输入数据类型：String ' 输出：BIN_to_HEX(十六进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function BIN_to_HEX(ByVal Bin As String) As String Dim i As Long Dim H As String If Len(Bin) Mod 4 <> 0 Then Bin = String(4 - Len(Bin) Mod 4, "0") & Bin End If For i = 1 To Len(Bin) Step 4 Select Case Mid(Bin, i, 4) Case "0000": H = H & "0" Case "0001": H = H & "1" Case "0010": H = H & "2" Case "0011": H = H & "3" Case "0100": H = H & "4" Case "0101": H = H & "5" Case "0110": H = H & "6" Case "0111": H = H & "7" Case "1000": H = H & "8" Case "1001": H = H & "9" Case "1010": H = H & "A" Case "1011": H = H & "B" Case "1100": H = H & "C" Case "1101": H = H & "D" Case "1110": H = H & "E" Case "1111": H = H & "F" End Select Next i While Left(H, 1) = "0" H = Right(H, Len(H) - 1) Wend BIN_to_HEX = H End Function '5. 用途：将十六进制转化为十进制 ' 输入：Hex(十六进制数) ' 输入数据类型：String ' 输出：HEX_to_DEC(十进制数) ' 输出数据类型：Long ' 输入的最大数为7FFFFFFF,输出的最大数为2147483647 Public Function HEX_to_DEC(ByVal Hex As String) As Long Dim i As Long Dim B As Long Hex = UCase(Hex) For i = 1 To Len(Hex) Select Case Mid(Hex, Len(Hex) - i + 1, 1) Case "0": B = B + 16 (i - 1) * 0 Case "1": B = B + 16 (i - 1) * 1 Case "2": B = B + 16 (i - 1) * 2 Case "3": B = B + 16 (i - 1) * 3 Case "4": B = B + 16 (i - 1) * 4 Case "5": B = B + 16 (i - 1) * 5 Case "6": B = B + 16 (i - 1) * 6 Case "7": B = B + 16 (i - 1) * 7 Case "8": B = B + 16 (i - 1) * 8 Case "9": B = B + 16 (i - 1) * 9 Case "A": B = B + 16 (i - 1) * 10 Case "B": B = B + 16 (i - 1) * 11 Case "C": B = B + 16 (i - 1) * 12 Case "D": B = B + 16 (i - 1) * 13 Case "E": B = B + 16 (i - 1) * 14 Case "F": B = B + 16 (i - 1) * 15 End Select Next i HEX_to_DEC = B End Function ' 6.用途：将十进制转化为十六进制 ' 输入：Dec(十进制数) ' 输入数据类型：Long ' 输出：DEC_to_HEX(十六进制数) ' 输出数据类型：String ' 输入的最大数为2147483647,输出最大数为7FFFFFFF Public Function DEC_to_HEX(Dec As Long) As String Dim a As String DEC_to_HEX = "" Do While Dec > 0 a = CStr(Dec Mod 16) Select Case a Case "10": a = "A" Case "11": a = "B" Case "12": a = "C" Case "13": a = "D" Case "14": a = "E" Case "15": a = "F" End Select DEC_to_HEX = a & DEC_to_HEX Dec = Dec 16 Loop End Function '7. 用途：将十进制转化为八进制 ' 输入：Dec(十进制数) ' 输入数据类型：Long ' 输出：DEC_to_OCT(八进制数) ' 输出数据类型：String ' 输入的最大数为2147483647,输出最大数为17777777777 Public Function DEC_to_OCT(Dec As Long) As String DEC_to_OCT = "" Do While Dec > 0 DEC_to_OCT = Dec Mod 8 & DEC_to_OCT Dec = Dec 8 Loop End Function '8. 用途：将八进制转化为十进制 ' 输入：Oct(八进制数) ' 输入数据类型：String ' 输出：OCT_to_DEC(十进制数) ' 输出数据类型：Long ' 输入的最大数为17777777777,输出的最大数为2147483647 Public Function OCT_to_DEC(ByVal Oct As String) As Long Dim i As Long Dim B As Long For i = 1 To Len(Oct) Select Case Mid(Oct, Len(Oct) - i + 1, 1) Case "0": B = B + 8 (i - 1) * 0 Case "1": B = B + 8 (i - 1) * 1 Case "2": B = B + 8 (i - 1) * 2 Case "3": B = B + 8 (i - 1) * 3 Case "4": B = B + 8 (i - 1) * 4 Case "5": B = B + 8 (i - 1) * 5 Case "6": B = B + 8 (i - 1) * 6 Case "7": B = B + 8 (i - 1) * 7 End Select Next i OCT_to_DEC = B End Function ' 9.用途：将二进制转化为八进制 ' 输入：Bin(二进制数) ' 输入数据类型：String ' 输出：BIN_to_OCT(八进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function BIN_to_OCT(ByVal Bin As String) As String Dim i As Long Dim H As String If Len(Bin) Mod 3 <> 0 Then Bin = String(3 - Len(Bin) Mod 3, "0") & Bin End If For i = 1 To Len(Bin) Step 3 Select Case Mid(Bin, i, 3) Case "000": H = H & "0" Case "001": H = H & "1" Case "010": H = H & "2" Case "011": H = H & "3" Case "100": H = H & "4" Case "101": H = H & "5" Case "110": H = H & "6" Case "111": H = H & "7" End Select Next i While Left(H, 1) = "0" H = Right(H, Len(H) - 1) Wend BIN_to_OCT = H End Function '10. 用途：将八进制转化为二进制 ' 输入：Oct(八进制数) ' 输入数据类型：String ' 输出：OCT_to_BIN(二进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function OCT_to_BIN(ByVal Oct As String) As String Dim i As Long Dim B As String For i = 1 To Len(Oct) Select Case Mid(Oct, i, 1) Case "0": B = B & "000" Case "1": B = B & "001" Case "2": B = B & "010" Case "3": B = B & "011" Case "4": B = B & "100" Case "5": B = B & "101" Case "6": B = B & "110" Case "7": B = B & "111" End Select Next i While Left(B, 1) = "0" B = Right(B, Len(B) - 1) Wend OCT_to_BIN = B End Function '11. 用途：将八进制转化为十六进制 ' 输入：Oct(八进制数) ' 输入数据类型：String ' 输出：OCT_to_HEX(十六进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function OCT_to_HEX(ByVal Oct As String) As String Dim Bin As String Bin = OCT_to_BIN(Oct) OCT_to_HEX = BIN_to_HEX(Bin) End Function '12. 用途：将十六进制转化为八进制 ' 输入：Hex(十六进制数) ' 输入数据类型：String ' 输出：HEX_to_OCT(八进制数) ' 输出数据类型：String ' 输入的最大数为2147483647个字符 Public Function HEX_to_OCT(ByVal Hex As String) As String Dim Bin As String Hex = UCase(Hex) Bin = HEX_to_BIN(Hex) HEX_to_OCT = BIN_to_OCT(Bin) End Function VB自带函数：十进制转八进制：Oct(num) 十六进制转八进制：oct("&H" & num) 十进制转十六进制：hex(num) 八进制转十六进制：hex("&O" & num) 十六进制转换为十进制 Dim str As String str = Text2.Text Text10.Text = CLng("&H" & str)

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