文字列相互回転文字配列string byte配列array of byte

{  TBytes   Integer}
procedure TForm1.Button1Click(Sender: TObject);
var
  bs: TBytes; {TBytes   Byte  }
  i: Integer;
begin
  {  Integer  }
  SetLength(bs, 4);
  bs[0] := $10;
  bs[1] := $27;
  bs[2] := 0;
  bs[3] := 0;

  {  TBytes  ,   bs  ;   PInteger}
  i := PInteger(bs)^;
  ShowMessage(IntToStr(i)); {10000}
end;

{  Bytes   Integer  }
procedure TForm1.Button2Click(Sender: TObject);
var
  bs: array[0..3] of Byte;
  i: Integer;
begin
  bs[0] := $10;
  bs[1] := $27;
  bs[2] := 0;
  bs[3] := 0;

  i := Integer(bs);
  ShowMessage(IntToStr(i)); {10000}
end;

{ }
procedure TForm1.Button3Click(Sender: TObject);
type
  TData = packed record
    a: Integer;
    b: Word;
  end;
var
  bs: array[0..5] of Byte; { }
  data: TData;
begin
  FillChar(bs, Length(bs), 0);
  bs[0] := $10;
  bs[1] := $27;

  data := TData(bs);
  ShowMessage(IntToStr(data.a)); {10000}
end;

{ }
procedure TForm1.Button4Click(Sender: TObject);
type
  TData = packed record
    a: Integer;
    b: Word;
  end;
var
  bs: array[0..3] of Byte;
  data: TData;
begin
  FillChar(bs, Length(bs), 0);
  bs[0] := $10;
  bs[1] := $27;

  data.a := Integer(bs);
  ShowMessage(IntToStr(data.a)); {10000}
end;