生成指定位数的随机字符串

  /// <summary>
  /// 生成指定位数的随机字符串
  /// </summary>
  /// <param name="length"></param>
  /// <returns></returns>
  public static string GenerateRandomString(int length = 10)
  {
      Random random = new Random();
      string chars = "ABCDEFGHJKMNPRSTWXYabcdefghjkmnprstwxy123456789";
      var code = new string(Enumerable.Range(1, length).Select(i => chars[random.Next(chars.Length)]).ToArray());
      return code;
  }