获取随机字符串

 1  #region 获取随机字符串
 2         /// <summary>
 3         /// 获取随机字符串
 4         /// </summary>
 5         /// <returns></returns>
 6         public static string GetRandomString()
 7         {
 8             //处理多文件上传重名导致上传失败的问题
 9             Random random = new Random(Guid.NewGuid().GetHashCode());
10 
11             string getString = DateTime.Now.ToString("yyyyMMddHHmmss_ffff_" + random.Next(1000, 9999));
12 
13             return getString;
14         } 
15         #endregion