Public Function dec_to_hex(dec As Long) As String
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Dim a As String
dec_to_hex = ""
Do While dec 0
a = CStr(dec Mod 16)
Select Case a
Case "0": a = "30H"
Case "1": a = "31H"
Case "2": a = "32H"
Case "3": a = "33H"
Case "4": a = "34H"
Case "5": a = "35H"
Case "6": a = "36H"
Case "7": a = "37H"
Case "8": a = "38H"
Case "9": a = "30H"
Case "10": a = "65H"
Case "11": a = "66H"
Case "12": a = "67H"
Case "13": a = "68H"
Case "14": a = "69H"
Case "15": a = "70H"
End Select
dec_to_hex = a " " dec_to_hex
dec = dec \ 16
Loop
End Function
'此函数用于十进制到二进制
Private Function Bin(Number As Long) As Long
Dim Div_value As String
Do
Div_value = (Number Mod 2) Div_value
Number = Int(Number / 2)
Loop Until Number 2
Bin = Number Div_value
End Function
'此函数用于二进制到十进制
Private Function value_Bin(Number As Long) As Long
Dim Temp_value As Long, Cyc As Long
For Cyc = 0 To Len(Str(Number))
If Cyc = Len(Str(Number)) Then
value_Bin = Temp_value + Val(Mid(Str(Number), Cyc, 1))
Exit For
End If
If Cyc 0 Then Temp_value = (Temp_value + Val(Mid(Str(Number), Cyc, 1))) * 2
Next Cyc
End Function
'====写入以上函数后转值操作：
'十进制到十六进制：Hex(十进制数值)
'十进制到八进制：Oct(十进制数值)
'十进制到二进制：Bin(十进制数值)
'二进制到十进制：value_Bin(二进制数值)
'八进制到十进制：Val("O" 八进制数值)
'十六进制到十进制：Val("H" 十六进制数值)
比如
msgbox DEC_to_BIN(10)
就会返回一个10转换为十进制后的结果
或者简单点就用
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)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
MsgBox(DEC_to_HEX(255))
End Sub
Public Function DEC_to_HEX(ByVal 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
