1. 产生随机密码(应该比较有用)
function createpass:string;
const
max_len=10;
var
i: integer;
s: string;
begin
randomize;
s:='abcdefghijklmnopqrstuvwxyz'+'abcdefghijklmnopqrstuvwxyz'+ '0123456789';
result := '';
for i := 0 to max_len-1 do
begin
result := result + s[random(length(s)-1)+1];
end;
end;
2. 十进制数字转换成罗马数字
function dectoroman(idecimal: longint): string;
const