function NumToChar(const n: Real): string; //可以到万亿，并且可以随便扩大范围
const cNum: WideString = '零壹贰叁肆伍陆柒捌玖--万仟佰拾亿仟佰拾万仟佰拾元角分';
cCha:array[0..1, 0..12]of string =
(( '零元','零拾','零佰','零仟','零万','零亿','亿万','零零零','零零','零万','零亿','亿万','零元'),
( '元','零','零','零','万','亿','亿','零','零','万','亿','亿','元'));
var i : Integer;
sNum,sTemp : WideString;
begin
result :='';
sNum := format('%15d',[round(n * 100)]);
for i := 0 to 14 do
begin
stemp := copy(snum,i+1,1);
if stemp=' ' then continue
else result := result + cNum[strtoint(stemp)+1] + cNum[i+13];
end;
for i:= 0 to 12 do
Result := StringReplace(Result, cCha[0,i], cCha[1,i], [rfReplaceAll]);
if pos('零分',result)=0
then Result := StringReplace(Result, '零角', '零', [rfReplaceAll])
else Result := StringReplace(Result, '零角','整', [rfReplaceAll]);
Result := StringReplace(Result, '零分','', [rfReplaceAll]);
end;

（出处：www.delphibbs.com）