查看字符串在不同编码(ASCII、Unicode、UTF7、UTF8、Default、BigEndianUnicode)下的 Hex

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls;

type
TForm1 = class(TForm)
Memo1: TMemo;
Memo2: TMemo;
Panel1: TPanel;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

{从字符串到十六进制的函数}
function StrToHex(str: string; AEncoding: TEncoding): string;
var
ss: TStringStream;
i: Integer;
begin
Result := '';
ss := TStringStream.Create(str, AEncoding);
for i := 0 to ss.Size - 1 do
Result := Result + Format('%.2x ', [ss.Bytes[i]]);
ss.Free;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.ASCII);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.Unicode);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.UTF7);
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.UTF8);
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.Default);
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
Memo2.Text := StrToHex(Memo1.Text, TEncoding.BigEndianUnicode);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
Button1.Caption := 'To ASCII';
Button2.Caption := 'To Unicode';
Button3.Caption := 'To UTF7';
Button4.Caption := 'To UTF8';
Button5.Caption := 'To Default';
Button6.Caption := 'To BigEndianUnicode';
end;

end.

object Form1: TForm1
Left = 0
Top = 0
Caption = 'Form1'
ClientHeight = 156
ClientWidth = 353
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object Memo1: TMemo
Left = 0
Top = 0
Width = 145
Height = 88
Align = alLeft
Lines.Strings = (
'Memo1')
ScrollBars = ssVertical
TabOrder = 0
end
object Memo2: TMemo
Left = 157
Top = 0
Width = 196
Height = 88
Align = alRight
Lines.Strings = (
'Memo2')
ScrollBars = ssVertical
TabOrder = 1
end
object Panel1: TPanel
Left = 0
Top = 88
Width = 353
Height = 68
Align = alBottom
TabOrder = 2
object Button1: TButton
Left = 16
Top = 6
Width = 73
Height = 25
Caption = 'Button1'
TabOrder = 0
OnClick = Button1Click
end
object Button2: TButton
Left = 95
Top = 6
Width = 74
Height = 25
Caption = 'Button2'
TabOrder = 1
OnClick = Button2Click
end
object Button3: TButton
Left = 175
Top = 6
Width = 82
Height = 25
Caption = 'Button3'
TabOrder = 2
OnClick = Button3Click
end
object Button4: TButton
Left = 263
Top = 6
Width = 74
Height = 25
Caption = 'Button4'
TabOrder = 3
OnClick = Button4Click
end
object Button5: TButton
Left = 16
Top = 37
Width = 96
Height = 25
Caption = 'Button5'
TabOrder = 4
OnClick = Button5Click
end
object Button6: TButton
Left = 130
Top = 37
Width = 207
Height = 25
Caption = 'Button6'
TabOrder = 5
OnClick = Button6Click
end
end
end