编写delphi金额小写转换成大写函数

function MoneyConvert(mmje:real): string; //传入 实数 参数，函数返回转换得到的大写结果
const
s1: string = '零壹贰叁肆伍陆柒捌玖';
s2: string = '分角元拾佰仟万拾佰仟亿拾佰仟万';
function StrTran(const S, s1, s2: string): string;
begin
Result := StringReplace(S, s1, s2, [rfReplaceAll]);
end;
var
S, dx: string;
i, Len: Integer;
begin
if mmje < 0 then
begin
dx := '负';
mmje := -mmje;
end;
S := Format('%.0f', [mmje * 100]);
Len := Length(S);
for i := 1 to Len do
dx := dx + Copy(s1, (Ord(S[i]) - Ord('0')) * 2 + 1, 2) + Copy(s2, (Len - i)* 2 + 1, 2);
dx := StrTran(StrTran(StrTran(StrTran(StrTran(dx, '零仟', '零'), '零佰','零'),'零拾', '零'), '零角', '零'), '零分', '整');
dx := StrTran(StrTran(StrTran(StrTran(StrTran(dx, '零零', '零'), '零零','零'),'零亿', '亿'), '零万', '万'), '零元', '元');
if dx = '整' then
Result := '零元整'
else
Result := StrTran(StrTran(dx, '亿万', '亿零'), '零整', '整');
end;