delphi 随机函数单元uRandomUtils

本文整理自网络，侵删。

 
unit uRandomUtils; //晓不得2013 QQ:26562729

interface

uses system.math, system.SysUtils;

function GetRandomCharStr(ADig: integer): string;
function GetRandomNumStr(ADig: integer): string; overload;
function GetRandomNumStr(AStart, AEnd: integer): string; overload;
function GetRandomHanziStr(ADig: integer): string;

implementation

type
  TGetRandomChar = reference to function: Char;

const
  HanZi = '平丽强勇军梅建化国中天莉尚丰田开杰锦思小晓伦春满淋叶风亚唯赵';

function GetRandomString(ADig: integer; AGetRadomChar: TGetRandomChar): string; overload;
var
  i: integer;
begin
  Result := '';
  if ADig < 1 then exit;
  for i := 1 to ADig do
  begin
    Randomize;
    Result := Result + AGetRadomChar;
  end;
end;

function GetRandomCharStr(ADig: integer): string;
var
  AChar: TGetRandomChar;
begin
  AChar := function: Char
    begin
      Result := Char(RandomRange(65 + 32, 91 + 32));
    end;
  Result := GetRandomString(ADig, AChar);
end;

function GetRandomNumStr(ADig: integer): string;
var
  AChar: TGetRandomChar;
begin
  AChar := function: Char
    begin
      Result := inttostr(RandomRange(0, 10))[1];
    end;
  Result := GetRandomString(ADig, AChar);
end;

function GetRandomNumStr(AStart, AEnd: integer): string; overload;
begin
  Result := IntToStr(RandomRange(AStart, AEnd + 1));
end;

function GetRandomHanziStr(ADig: integer): string;
var
  AChar: TGetRandomChar;
  nHanzi: integer;
begin
  nHanzi := length(HanZi) + 1;
  if nHanzi <= 1 then exit('');
  AChar := function: Char
    begin
      Result := HanZi[RandomRange(1, nHanzi)];
    end;
  Result := GetRandomString(ADig, AChar);
end;

end.

 

相关阅读 >>

Delphi 调用js字符串编码

Delphi共享软件防破解的实用方法

Delphi 数据模块池

Delphi 2009 中 string 与 char 的改变

Delphi getfilehashmd5

Delphi firedac 下的 sqlite [5] - 数据的插入、更新、删除

Delphi listview基本用法大全

Delphi tscreen 类 - 通过 screen 更换光标

Delphi 合并动态数组

Delphi中如何用image控件显示网络图片

更多相关阅读请进入《Delphi》频道 >>

转载请注明出处：木庄网络博客 » delphi 随机函数单元uRandomUtils