得到汉字拼音首字母

function py(x: AnsiString): ansichar;
begin
case word(x[1]) shl 8 +word(x[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:=ansichar(32);
end;
end;

function getpy(x:string):string;
var
i:integer;
hp:string;
atext:string;
begin
result :='';
atext := '';
for I := 1 to Length(x) do
begin
atext := atext + copy(x,i,1) + ' ';
end;
for i:=1 to (length(atext) div 2) do
begin
hp:=copy(atext,i*2-1,2);
result:=result+py(hp);
end;
end;

end.