Delphi中取得汉字的首字母简单方法（十分巧妙）

//从朝闻道的博客里转载，原文定义AHzStr: String，发现结果为空，后来改成AHzStr: AnsiString就可以了

function GetHzPy(const AHzStr: AnsiString): string; 
const
ChinaCode: 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;
// Hz: string[2];
begin
i :=1;
while i <= Length(AHzStr) do
begin
if (AHzStr[i] >= #160) and (AHzStr[i +1] >= #160) then
begin
HzOrd := (Ord(AHzStr[i]) -160) *100+ Ord(AHzStr[i +1]) -160;
for j :=0 to 25 do
begin
if (HzOrd >= ChinaCode[j][0]) and (HzOrd <= ChinaCode[j][1]) then
begin
Result := Result +char(byte('A') + j);
break;
end;
end;
Inc(i);
end else Result := Result + AHzStr[i];
Inc(i);
end;
end;

//获取单个汉字的首拼音，百度的来的，和上面原理一样，这两个方法算是众多方法中比较简单的了

function GetPYIndexChar( hzchar:Ansistring):char;
begin //的到一个汉字的拼音头个字母
case WORD(hzchar[1]) shl 8 + WORD(hzchar[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;

procedure TForm1.Button1Click(Sender: TObject);
var
s1,s2,s3: string;
i: integer;
begin
s1 := '博客园';
s2 := GetHzPy(s1); // 得到：BKY
for I := 1 to length(s1) do
begin
s3 := s3 + GetPYIndexChar(s1[i]); // 得到：BKY
end;
end;