Asp.NET 隨機碼生成基類(隨機字母,隨機數(shù)字,隨機字母+數(shù)字)
更新時間:2008年11月10日 11:51:08 作者:
對于需要用asp.net 字母,隨機數(shù)字,隨機字母+數(shù)字生成隨機碼的朋友用的到
復制代碼 代碼如下:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
namespace EC
{
/// <summary>
/// 隨機函數(shù)
/// </summary>
public class RandomObject
{
#region 數(shù)字隨機數(shù)
/// <summary>
/// 數(shù)字隨機數(shù)
/// </summary>
/// <param name="n">生成長度</param>
/// <returns></returns>
public static string RandNum(int n)
{
char[] arrChar = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
StringBuilder num = new StringBuilder();
Random rnd = new Random(DateTime.Now.Millisecond);
for (int i = 0; i < n; i++)
{
num.Append(arrChar[rnd.Next(0, 9)].ToString());
}
return num.ToString();
}
#endregion
#region 數(shù)字和字母隨機數(shù)
/// <summary>
/// 數(shù)字和字母隨機數(shù)
/// </summary>
/// <param name="n">生成長度</param>
/// <returns></returns>
public static string RandCode(int n)
{
char[] arrChar = new char[]{
'a','b','d','c','e','f','g','h','i','j','k','l','m','n','p','r','q','s','t','u','v','w','z','y','x',
'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','Q','P','R','T','S','V','U','W','X','Y','Z'
};
StringBuilder num = new StringBuilder();
Random rnd = new Random(DateTime.Now.Millisecond);
for (int i = 0; i < n; i++)
{
num.Append(arrChar[rnd.Next(0, arrChar.Length)].ToString());
}
return num.ToString();
}
#endregion
#region 字母隨機數(shù)
/// <summary>
/// 字母隨機數(shù)
/// </summary>
/// <param name="n">生成長度</param>
/// <returns></returns>
public static string RandLetter(int n)
{
char[] arrChar = new char[]{
'a','b','d','c','e','f','g','h','i','j','k','l','m','n','p','r','q','s','t','u','v','w','z','y','x',
'_',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','Q','P','R','T','S','V','U','W','X','Y','Z'
};
StringBuilder num = new StringBuilder();
Random rnd = new Random(DateTime.Now.Millisecond);
for (int i = 0; i < n; i++)
{
num.Append(arrChar[rnd.Next(0, arrChar.Length)].ToString());
}
return num.ToString();
}
#endregion
#region 日期隨機函數(shù)
/// <summary>
/// 日期隨機函數(shù)
/// </summary>
/// <param name="ra">長度</param>
/// <returns></returns>
public static string DateRndName(Random ra)
{
DateTime d = DateTime.Now;
string s = null, y, m, dd, h, mm, ss;
y = d.Year.ToString();
m = d.Month.ToString();
if (m.Length < 2) m = "0" + m;
dd = d.Day.ToString();
if (dd.Length < 2) dd = "0" + dd;
h = d.Hour.ToString();
if (h.Length < 2) h = "0" + h;
mm = d.Minute.ToString();
if (mm.Length < 2) mm = "0" + mm;
ss = d.Second.ToString();
if (ss.Length < 2) ss = "0" + ss;
s += y + m + dd + h + mm + ss;
s += ra.Next(100, 999).ToString();
return s;
}
#endregion
#region 生成GUID
/// <summary>
/// 生成GUID
/// </summary>
/// <returns></returns>
public static string GetGuid()
{
System.Guid g = System.Guid.NewGuid();
return g.ToString();
}
#endregion
}
}
相關文章
.Net Core自動化部署之利用docker版jenkins部署dotnetcore應用的方法
這篇文章主要給大家介紹了關于.Net Core自動化部署之利用docker版jenkins部署dotnetcore應用的相關資料,文中通過示例代碼介紹的非常詳細,對大家的學習或者工作具有一定的參考學習價值,需要的朋友們下面隨著小編來一起學習學習吧2018-06-06EasyUI Tree+Asp.net實現(xiàn)權限樹或目錄樹導航的簡單實例
本篇文章主要是對EasyUI Tree+Asp.net實現(xiàn)權限樹或目錄樹導航的簡單實例進行了介紹,需要的朋友可以過來參考下,希望對大家有所幫助2014-02-02C# XML操作 代碼大全(讀XML,寫XML,更新,刪除節(jié)點,與dataset結合等)
C#操作XML(讀XML,寫XML,更新,刪除節(jié)點,與dataset結合等),以下就是操作XML的所有方法,相信可以滿足很大一部份的使用了。2009-06-06Asp.net Socket客戶端(遠程發(fā)送和接收數(shù)據(jù))
通過Socket遠程發(fā)送與接收數(shù)據(jù)的代碼類2008-11-11