如何在Excel中加密/解密選定的單元格？

Private Function StrToPsd(ByVal Txt As String) As Long UpdatebyKutoolsforExcel20151225 Dim xVal As Long Dim xCh As Long Dim xSft1 As Long Dim xSft2 As Long Dim I As Integer Dim xLen As Integer xLen = Len(Txt) For I = 1 To xLen xCh = Asc(Mid$(Txt, I, 1)) xVal = xVal Xor (xCh * 2 ^ xSft1) xVal = xVal Xor (xCh * 2 ^ xSft2) xSft1 = (xSft1 + 7) Mod 19 xSft2 = (xSft2 + 13) Mod 23 Next I StrToPsd = xVal End Function Private Function Encryption(ByVal Psd As String, ByVal InTxt As String, Optional ByVal Enc As Boolean = True) As String Dim xOffset As Long Dim xLen As Integer Dim I As Integer Dim xCh As Integer Dim xOutTxt As String xOffset = StrToPsd(Psd) Rnd -1 Randomize xOffset xLen = Len(InTxt) For I = 1 To xLen xCh = Asc(Mid$(InTxt, I, 1)) If xCh >= 32 And xCh <= 126 Then xCh = xCh - 32 xOffset = Int((96) * Rnd) If Enc Then xCh = ((xCh + xOffset) Mod 95) Else xCh = ((xCh - xOffset) Mod 95) If xCh < 0 Then xCh = xCh + 95 End If xCh = xCh + 32 xOutTxt = xOutTxt & Chr$(xCh) End If Next I Encryption = xOutTxt End Function Sub EncryptionRange() Dim xRg As Range Dim xPsd As String Dim xTxt As String Dim xEnc As Boolean Dim xRet As Variant Dim xCell As Range On Error Resume Next xTxt = ActiveWindow.RangeSelection.Address Set xRg = Application.InputBox("Select a range:", "Kutools for Excel", xTxt, , , , , 8) Set xRg = Application.Intersect(xRg, xRg.Worksheet.UsedRange) If xRg Is Nothing Then Exit Sub xPsd = InputBox("Enter password:", "Kutools for Excel") If xPsd = "" Then MsgBox "Password cannot be empty", , "Kutools for Excel" Exit Sub End If xRet = Application.InputBox("Type 1 to encrypt cell(s);Type 2 to decrypt cell(s)", "Kutools for Excel", , , , , , 1) If TypeName(xRet) = "Boolean" Then Exit Sub If xRet > 0 Then xEnc = (xRet Mod 2 = 1) For Each xCell In xRg If xCell.Value <> "" Then xCell.Value = Encryption(xPsd, xCell.Value, xEnc) End If Next End If End Sub

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