当前文件： WebFtp/App_Code/Word.cs[4K，2009-6-12 11:58:24]，打开代码结构图

		            
  1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Web;
  5using System.Web.Security;
  6using System.Web.UI;
  7using System.Web.UI.WebControls;
  8using System.Web.UI.WebControls.WebParts;
  9using System.Web.UI.HtmlControls;
 10using System.Text;
 11using System.Text.RegularExpressions;
 12using System.Collections.Generic;
 13using System.Security.Cryptography;
 14namespace Webftp
 15...{
 16    /**//// <summary>
 17    /// word 的摘要说明
 18    /// </summary>
 19    public class Word
 20    ...{
 21        private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样 
 22        private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");//检测是否有中文字符
 23        private static Regex RegUsername = new Regex(@"^[A-Za-z0-9]+$");//检测是否英文字母或数字
 24        public Word()
 25        ...{
 26            //
 27            // TODO: 在此处添加构造函数逻辑
 28            //
 29        }
 30        /**//// <summary>
 31        /// 检查字符串是否超过指定的最大长度
 32        /// </summary>
 33        /// <param name="sqlInput">输入字符串</param>
 34        /// <param name="maxLength">最大长度</param>
 35        /// <returns></returns>            
 36        public static bool StrLength(string StrInput)
 37        ...{
 38            if (StrInput.Length > 8)
 39            ...{
 40                return false;//超过8个字符，返回假
 41            }
 42            else
 43            ...{
 44                return true;
 45            }            
 46        }
 47        /**//// <summary>
 48        /// 检测是否有中文字符
 49        /// </summary>
 50        /// <param name="StrInput"></param>
 51        /// <returns></returns>
 52        public static bool IsZh(string StrInput)
 53        ...{
 54            Match m = RegCHZN.Match(StrInput);
 55            return m.Success;
 56        }
 57        /**//// <summary>
 58        /// 检测是否英文字母或数字
 59        /// </summary>
 60        /// <param name="StrInput"></param>
 61        /// <returns></returns>
 62        public static bool IsEnNum(string StrInput)
 63        ...{
 64            Match m = RegUsername.Match(StrInput);
 65            return m.Success;
 66        }
 67
 68        /**//// <summary>
 69        /// MD5加密处理
 70        /// </summary>
 71        /// <param name="toHash"></param>
 72        /// <returns></returns>
 73        public static string Hash(string toHash)
 74        ...{
 75            MD5CryptoServiceProvider crypto = new MD5CryptoServiceProvider();            
 76            byte[] bytes = Encoding.UTF7.GetBytes(toHash);
 77            bytes = crypto.ComputeHash(bytes);
 78            StringBuilder sb = new StringBuilder();
 79            foreach (byte num in bytes)
 80            ...{
 81                sb.AppendFormat("{0:x2}", num);
 82            }
 83            return sb.ToString();
 84        }
 85        /**//// <summary>
 86        /// 根据配置对指定字符串进行 MD5 加密
 87        /// </summary>
 88        /// <param name="s"></param>
 89        /// <returns></returns>
 90        public static string GetMD5(string s)
 91        ...{
 92            //md5加密
 93            s = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(s, "md5").ToString();
 94         
 95            return s.ToLower();
 96        }
 97
 98        /**//// <summary>
 99        /// 转换成小写
100        /// </summary>
101        /// <param name="str"></param>
102        /// <returns></returns>
103        public static string StrToLower(string str)
104        ...{
105            return str.ToLower();
106        }
107
108        public static string Serv_u_Md5(string pwd)
109        ...{
110            string rdoms = "";  //定义字符串
111            Random ran = new Random();
112            rdoms += Convert.ToChar(ran.Next(26) + 'a').ToString() + Convert.ToChar(ran.Next(26) + 'a').ToString(); //将随机产生的两个字母相连.例如:a+b=ab
113            string strmd5 = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(rdoms + pwd, "MD5");  //把两位随机字母和md5连接并再次进行MD5加密
114            return rdoms + strmd5; //将两位随机字母与加密后的MD5值再次连接
115           
116        }
117    }
118}