区位码与汉字的相互转换

function GetHz(qm, wm: Integer): String;
begin
  Result := Chr(160+qm)+Chr(160+wm);
end;

procedure GetQWCode(HZ: string; var Q, W: Word);
begin
  Q := Byte(HZ[1]) - $A0;  这是区码
  W := Byte(HZ[2]) - $A0;  这是位码
end;

function GetHZCode(vHZ: string): string;
//vHZ：一个汉字
//返回区位码字符串,GB2312中没有的字返回0000
var
  QM, WM: Integer;
  tStr: string;
begin
  tStr := '''';
  QM := Ord(vHZ[1])-160;
  WM := Ord(vHZ[2])-160;
  if (QM<0) or (WM<0) then
  begin
    QM := 0;
    WM := 0;
  end;

  if QM <10 then
    tStr := ''0''+IntToStr(QM)
  else
    tStr := IntToStr(QM);
  if WM < 10 then
    tStr := tStr+''0''+IntToStr(WM)
  else
    tStr := tStr+IntToStr(WM);

  GetHZCode := tStr;
end;