‘左移函数
Function LShift(Value, Shift)
Set sc = CreateObject("MSScriptControl.ScriptControl")
sc.Language = "JScript"
LShift = sc.Eval(Value & "<<" & Shift)
End Function
‘右移函数
Function RShift(Value, Shift)
Set sc = CreateObject("MSScriptControl.ScriptControl")
sc.Language = "JScript"
RShift = sc.Eval(Value & ">>" & Shift)
End Function
工作中遇到的加密算法示例：
Sub MyModelID()
Dim i As Integer
Dim rs As Long
Dim n_brandid As Long
Dim n_modelid As Long
For i = 2 To UsedRange.Rows.Count
rs = Cells(i, 2) Mod LShift(1, 7) ‘Brandid
n_brandid = rs + LShift(rs, 7)
n_modelid = Cells(i, 1) Xor n_brandid
n_modelid = LShift(n_modelid, 7) + rs
Cells(i, 6) = n_modelid
If IsNumeric(Cells(i, 3)) And IsEmpty(Cells(i, 3)) <> True Then
Cells(i, 8) = Cells(i, 3) * 2 / 60 + 2
Cells(i, 9) = Cells(i, 4) / 60
Cells(i, 10) = Cells(i, 5) / 60
Else
Cells(i, 8) = 8888
Cells(i, 9) = 8888
Cells(i, 10) = 8888
End If
‘ Debug.Print Cells(i, 6)
Next
MsgBox "完成！"
End Sub
原文：https://www.cnblogs.com/april6/p/14763004.html