C# 随机数生成避免重复 

  1.         public string GetMsgID()
  2.         {
  3.             Random rand = new Random((int)DateTime.Now.Ticks);
  4.             string szRand = rand.Next(0, 9999).ToString().PadLeft(4, '0');
  5.             return string.Format("{0}{1}", DateTime.Now.ToString("yyyyMMddHHmmss"), szRand);
  6.         }





posted @ 2017-04-26 14:37  .windy  阅读(462)  评论(0)  编辑  收藏  举报