procedure TForm1.Button1Click(Sender: TObject); var s:string; i:integer; a,b:integer; begin randomize; s:=''; for i:=0 to 10 do begin a:=random(26); b:=random(10); a:=a+65; b:=b+48; s:=s+chr(a)+chr(b); end; showMessage(s); end;
procedure TForm1.Button1Click(Sender: TObject); var s:string; i:integer; a,b:integer; begin randomize; s:=''; for i:=0 to 10 do //生成长度为20个字符的随机字符串 begin a:=random(26); //26个字符 b:=random(10); //10个数字 a:=a+65; //加上a的ascii码65 b:=b+48; //加上0的ascii码48 s:=s+chr(a)+chr(b); //加上数字和字符 end; showMessage(s); end;
function randomstr(iCount: Integer):String; ////取iCount位随机数 const charArray :array [0..35] of char={'0'..'9','a'..'z'}; var ii,jj: Integer; str: String; begin Randomize; str := ''; jj := 0; while jj < iCount do begin ii := random(36); str := str + charArray[ii]; inc(jj); end; result := str; end;
const charArray :array [0..35] of char=('0','1','2','3','4','5','6','7','8','9', 'a','b','c','d','e','f','g','h','i','j', 'k','l','m','n','o','p','q','r','s','t', 'u','v','w','x','y','z');
var
s:string;
i:integer;
a,b:integer;
begin
randomize;
s:='';
for i:=0 to 10 do
begin
a:=random(26);
b:=random(10);
a:=a+65;
b:=b+48;
s:=s+chr(a)+chr(b);
end;
showMessage(s);
end;
var
s:string;
i:integer;
a,b:integer;
begin
randomize;
s:='';
for i:=0 to 10 do //生成长度为20个字符的随机字符串
begin
a:=random(26); //26个字符
b:=random(10); //10个数字
a:=a+65; //加上a的ascii码65
b:=b+48; //加上0的ascii码48
s:=s+chr(a)+chr(b); //加上数字和字符
end;
showMessage(s);
end;
const charArray :array [0..35] of char={'0'..'9','a'..'z'};
var ii,jj: Integer;
str: String;
begin
Randomize;
str := '';
jj := 0;
while jj < iCount do
begin
ii := random(36);
str := str + charArray[ii];
inc(jj);
end;
result := str;
end;
'a','b','c','d','e','f','g','h','i','j',
'k','l','m','n','o','p','q','r','s','t',
'u','v','w','x','y','z');