//親測無問題

　　　　  byte[] buffer = Guid.NewGuid().ToByteArray();
        int iSeed = BitConverter.ToInt32(buffer, 0);
        Random random = new Random(iSeed);
        //Random random = new Random(new Guid().GetHashCode());//也有人用這種寫法，這種寫法是有問題的，不信請測試
        for (int i = 0; i < 100; i++)
        {
            Response.Write(random.Next(
 
0, 100) + "<br>");
        }