var i:Integer; mstr:String; begin //产生含有ASCII 33--126字符的长度为8的随机字符串,32是空格,126以上不可显示 Randomize; mstr:=''; for i:=1 to 8 do mstr:=mstr+Char(Byte(' ')+1+Byte(Random(125-32))); Caption:=mstr; end;
function RANDOMStr (ALen : integer) : string; const Tbl : array [0 .. $1F] of char = ( '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'); var i, n, k, x, j : integer; begin SetString (Result, nil, ALen); n := ALen * 5; j := 1; while n > 0 do begin if n > 30 then k := 30 else k := n; x := RANDOM (1 shl k - 1); for i := 1 to k div 5 do begin Result [j] := Tbl [x and $1F]; inc (j); x := x ShR 5; end; dec (n, k) end; end;
i:Integer;
mstr:String;
begin //产生含有ASCII 33--126字符的长度为8的随机字符串,32是空格,126以上不可显示
Randomize;
mstr:='';
for i:=1 to 8 do
mstr:=mstr+Char(Byte(' ')+1+Byte(Random(125-32)));
Caption:=mstr;
end;
const Tbl : array [0 .. $1F] of char = (
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F', 'G', 'H', 'K', 'M', 'N', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z');
var i, n, k, x, j : integer;
begin
SetString (Result, nil, ALen);
n := ALen * 5;
j := 1;
while n > 0 do begin
if n > 30 then k := 30
else k := n;
x := RANDOM (1 shl k - 1);
for i := 1 to k div 5 do begin
Result [j] := Tbl [x and $1F];
inc (j);
x := x ShR 5;
end;
dec (n, k)
end;
end;