初始化随机种

Random Counter = new Random(Guid.NewGuid().GetHashCode());

测试例子

            Random Counter = new Random(Guid.NewGuid().GetHashCode());

            Response.Write(Counter.Next(1, int.MaxValue));
            Counter = new Random(Guid.NewGuid().GetHashCode());
            Response.Write("</br>");
            Response.Write(Counter.Next(1, int.MaxValue));//此随即数和上一个不一致