VB 各种进制相互转换大全

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"
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)
' 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 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 "7": B = B & "0111"
Case "8": B = B & "1000"
Case "9": B = B & "1001"
Case "A": B = B & "1010"
Case "B": B = B & "1011"
' 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
Case "15": a = "F"
End Select
DEC_to_HEX = a & DEC_to_HEX
Dec = Dec \ 16
Loop
End Function
' 用途：将十进制转化为八进制
' 输入：Dec(十进制数)
' 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
' 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 = ""
Next i
While Left(B, 1) = "0"
B = Right(B, Len(B) - 1)
Wend
HEX_to_BIN = B
End Function
' 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
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
藏了好久的东西...今天不小心翻到了~丢出来给大家用用,挺全的十进制,八进制,十六进制,二进制相互转换都有了
'-------------------------------------------------
' 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
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"
' 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
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"
DEC_to_BIN = ""
Do While Dec > 0
DEC_to_BIN = Dec Mod 2 & DEC_to_BIN
Dec = Dec \ 2
Loop
End Function
' 用途：将二进制转化为十进制
' 输入：Bin(二进制数)
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 "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 "0000": H = H & "0"
Case "0001": H = H & "1"
Case "0010": H = H & "2"
Case "0011": H = H & "3"
Case "0100": H = H & "4"
Next i
HEX_to_DEC = B
End Function
' 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
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
Do While Dec > 0
DEC_to_OCT = Dec Mod 8 & DEC_to_OCT