[转]随机生成密码

#region 随机生成密码
        public static string RandomPassword(int pwdlen)
        {
            string tmpstr = "";
            string pwdchars = "abcdefghijklmnopqrstuvwxyz0123456789";
            int iRandNum;
            Random rnd = new Random();
            for (int i = 0; i < pwdlen; i++)
            {
                iRandNum = rnd.Next(pwdchars.Length);
                tmpstr += pwdchars[iRandNum];
            }
            return tmpstr;
        }
        #endregion