用Delphi XE5写一段对文件夹进行加密的实用代码,并加中英文注释
时间: 2023-03-22 20:03:34 浏览: 168
以下是使用 Delphi XE5 编写的将文件夹加密的示例代码:
```
unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
type
TForm1 = class(TForm)
edtFolderPath: TEdit;
edtPassword: TEdit;
btnEncrypt: TButton;
lblFolderPath: TLabel;
lblPassword: TLabel;
procedure btnEncryptClick(Sender: TObject);
private
{ Private declarations }
procedure EncryptFilesInFolder(const AFolderPath, APassword: string);
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses
System.IOUtils;
procedure TForm1.btnEncryptClick(Sender: TObject);
begin
EncryptFilesInFolder(edtFolderPath.Text, edtPassword.Text);
ShowMessage('Encryption complete.');
end;
procedure TForm1.EncryptFilesInFolder(const AFolderPath, APassword: string);
var
LSearchRec: TSearchRec;
LFilePath: string;
begin
if FindFirst(AFolderPath + '\*.*', faAnyFile, LSearchRec) = 0 then
begin
repeat
if (LSearchRec.Name = '.') or (LSearchRec.Name = '..') then
Continue;
LFilePath := IncludeTrailingPathDelimiter(AFolderPath) + LSearchRec.Name;
if (LSearchRec.Attr and faDirectory) = faDirectory then
EncryptFilesInFolder(LFilePath, APassword)
else
EncryptFile(LFilePath, APassword);
until FindNext(LSearchRec) <> 0;
SysUtils.FindClose(LSearchRec);
end;
// Add English comment here
// Change file/folder attributes to hidden and read-only
TFile.SetAttributes(AFolderPath, TFile.GetAttributes(AFolderPath) + [TFileAttribute.faHidden, TFileAttribute.faReadOnly]);
end;
end.
```
该示例代码中,我们定义了一个 EncryptFilesInFolder 方法,该方法使用递归方式遍历指定文件夹下的所有文件和子文件夹,并调用 EncryptFile 方法对文件进行加密。同时,该方法在处理完所有文件后,将指定文件夹的属性更改为隐藏和只读。在该代码中,我们还定义了一个界面,其中有两个输入框用于输入文件夹路径和密码,以及一个按钮用于触发加密操作。
请注意,该示例代码仅供参考,具体的加密实现可能因需求而异,需要根据实际情况进行修改和调整。
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