function GetPyChar(const HZ: AnsiString): string;
const
HZCode: array[0..25, 0..1] of Integer = ((1601, 1636), (1637, 1832), (1833, 2077),
    (2078, 2273), (2274, 2301), (2302, 2432), (2433, 2593), (2594, 2786), (9999, 0000),
    (2787, 3105), (3106, 3211), (3212, 3471), (3472, 3634), (3635, 3722), (3723, 3729),
    (3730, 3857), (3858, 4026), (4027, 4085), (4086, 4389), (4390, 4557), (9999, 0000),
    (9999, 0000), (4558, 4683), (4684, 4924), (4925, 5248), (5249, 5589));
var
i,j,HzOrd: Integer;
begin
i := 1;
while i <= Length(HZ) do
    begin
    if (HZ[i] >= #160) and (HZ[i + 1] >= #160) then
    begin
      HzOrd := (Ord(HZ[i]) – 160) * 100 + Ord(HZ[i + 1]) – 160;
      for j := 0 to 25 do
      begin
        if (HzOrd >= HZCode[j][0]) and (HzOrd <= HZCode[j][1]) then
        begin
          Result := Result + Char(Byte(‘A’) + j);
          Break;
        end;
      end;
      Inc(i);
    end else Result := Result + HZ[i];
      Inc(i);
end;
end;

//测试：
procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(GetPyChar(‘龙在天)); //结果：

end;

//只单独汉字：
function GetPyFitstChar(HZ: AnsiString): Char;
begin
case LoWord(HZ[1]) shl 8 + LoWord(HZ[2]) of
    $B0A1..$B0C4: Result := ‘A’;
    $B0C5..$B2C0: Result := ‘B’;
    $B2C1..$B4ED: Result := ‘C’;
    $B4EE..$B6E9: Result := ‘D’;
    $B6EA..$B7A1: Result := ‘E’;
    $B7A2..$B8C0: Result := ‘F’;
    $B8C1..$B9FD: Result := ‘G’;
    $B9FE..$BBF6: Result := ‘H’;
    $BBF7..$BFA5: Result := ‘J’;
    $BFA6..$C0AB: Result := ‘K’;
    $C0AC..$C2E7: Result := ‘L’;
    $C2E8..$C4C2: Result := ‘M’;
    $C4C3..$C5B5: Result := ‘N’;
    $C5B6..$C5BD: Result := ‘O’;
    $C5BE..$C6D9: Result := ‘P’;
    $C6DA..$C8BA: Result := ‘Q’;
    $C8BB..$C8F5: Result := ‘R’;
    $C8F6..$CBF9: Result := ‘S’;
    $CBFA..$CDD9: Result := ‘T’;
    $CDDA..$CEF3: Result := ‘W’;
    $CEF4..$D188: Result := ‘X’;
    $D1B9..$D4D0: Result := ‘Y’;
    $D4D1..$D7F9: Result := ‘Z’;
else
    Result := Char(0);
end;
end;

//测试：
procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(GetPyFitstChar’龙在天‘)); //结果：L

end;