//方法 1: 共用内存procedure TForm1.Button1Click(Sender: TObject);
var
bf: record b1,b2,b3,b4: Byte end;

i: Integer absolute bf;
begin
bf.b1 := $CC;

bf.b2 := $DD;

bf.b3 := $EE;

bf.b4 := $FF;

ShowMessageFmt('%x', [i]);

//FFEEDDCC

end;
//方法 2: 位运算procedure TForm1.Button2Click(Sender: TObject);
var
i: Integer;
begin
i := $CC or ($DD shl 8) or ($EE shl 16) or ($FF shl 24);//不用括号也可
ShowMessageFmt('%x', [i]);

//FFEEDDCC

end;
//方法 3: 使用函数procedure TForm1.Button3Click(Sender: TObject);
var
i: Integer;
begin
i := MakeLong(MakeWord($CC,$DD),
MakeWord($EE,$FF));

ShowMessageFmt('%x', [i]);

//FFEEDDCCend;
//方法 4: 从静态数组...procedure TForm1.Button4Click(Sender: TObject);
var
bs: array[0..3] of Byte;

P: PInteger;
begin
bs[0] := $CC;

bs[1] := $DD;

bs[2] := $EE;

bs[3] := $FF;

P := @bs;

ShowMessageFmt('%x', [P^]);

//FFEEDDCC

end;
//方法 5: 从动态数组...procedure TForm1.Button5Click(Sender: TObject);
var
bs: array of Byte;

P: PInteger;
begin
SetLength(bs, 4);

bs[0] := $CC;

bs[1] := $DD;

bs[2] := $EE;

bs[3] := $FF;

P := @bs[0];

ShowMessageFmt('%x', [P^]);

//FFEEDDC

Cend;