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delphi 分享三个随机字符串

时间:2018-02-15 16:56:03      阅读:259      评论:0      收藏:0      [点我收藏+]

标签:string   object   nop   ring   procedure   math   分享   随机   proc   

uses math;

function GenID:String;
var
b, x: byte;
begin
  Result := {;
  Randomize;
  for b:= 1 to 8 do
  begin
    if Random(100) > 50 then Result := Result + chr(RandomRange(48,57))
    else Result := Result + chr(RandomRange(65,90));
  end;
  Result := Result + -;
  for x:= 1 to 3 do
  begin
    for b:= 1 to 4 do
    begin
      if Random(100) < 50 then Result := Result + chr(RandomRange(48,57))
      else Result := Result + chr(RandomRange(65,90));
    end;
    Result := Result + -;
  end;
  for b:= 1 to 12 do
  begin
    if Random(100) < 50 then Result := Result + chr(RandomRange(48,57))
    else Result := Result + chr(RandomRange(65,90));
  end;
  Result := Result + };
end;

function genkey :string;
const
  Chars = ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz;
var
  S: string;
  i, N: integer;
begin
  Randomize;
  S := ‘‘;
  for i := 1 to 30 do begin
    N := Random(Length(Chars)) + 1;
    S := S + Chars[N];
  end;
  result := S;
end;

function genkey2(c:integer) :string;
const
  Chars = ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz;
var
  S: string;
  i, N: integer;
begin
  if c < 20 then c := 30;
  Randomize;
  S := ‘‘;
  for i := 1 to c do begin
    N := Random(Length(Chars)) + 1;
    S := S + Chars[N];
  end;
  result := S;
end;


procedure TForm1.FormCreate(Sender: TObject);
begin
memo1.Lines.Add(GenID);
memo1.Lines.Add(genkey);
memo1.Lines.Add(genkey2(10));
end;

 

delphi 分享三个随机字符串

标签:string   object   nop   ring   procedure   math   分享   随机   proc   

原文地址:https://www.cnblogs.com/westsoft/p/8449594.html

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