1230转化成十六进制

Private Sub Command1_Click()
Dim a As Integer
Dim b As Integer
Dim s As String
Dim yushu As Integer
a = 1230: b = 16
While a <> 0
    yushu = a Mod b
    s = f(yushu) & s
    a = a \ b
Wend
Print s
End Sub
Private Function f(yushu As Integer) As String
If yushu <= 9 Then
    f = yushu
Else
    Select Case yushu
        Case 10, 11, 12, 13, 14, 15
            f = Chr(yushu + 55)
        End Select
    End If
End Function