asp.net中的非同步作業

 /// <summary>
        /// 定義委託
        /// </summary>
        /// <param name="user">使用者</param>
        delegate void MakeStaticDelegate(string user);

        /// <summary>
        /// 這裡是測試靜態方法
        /// </summary>
        /// <param name="user">使用者</param>
        private static void MakeStaticTest(string user)
        {
            for (int i = 0; i < 10; i++)
            {
                // 輸出當前的變數
                System.Console.WriteLine(user + "：" + i.ToString());
                System.Threading.Thread.Sleep(1000);
            }
        }

        /// <summary>
        /// 這裡是類比多使用者同時點擊並發
        /// </summary>
        public void DoTest()
        {

　　　　//這裡非同步作業完成後調用的函數（AsyncCallback是個委託）
            AsyncCallback asyn = new AsyncCallback(Success);
            // 類比3個使用者的並行作業
            MakeStaticDelegate makeStaticDelegate1 = new MakeStaticDelegate(MakeStaticTest);
            makeStaticDelegate1.BeginInvoke("user1", asyn,"ss");
            MakeStaticDelegate makeStaticDelegate2 = new MakeStaticDelegate(MakeStaticTest);
            makeStaticDelegate2.BeginInvoke("user2", asyn, "ss");
            MakeStaticDelegate makeStaticDelegate3 = new MakeStaticDelegate(MakeStaticTest);
            makeStaticDelegate3.BeginInvoke("user3", asyn,"ss");
            System.Console.ReadLine();
        }

        public void Success(IAsyncResult ar)
        {
            string ss=ar.AsyncState.ToString();//這獲得的ss就是 makeStaticDelegate1.BeginInvoke("user1", asyn,"ss");此方法的最後一個參數“ss”如果數對象要強轉
            Console.Write("調用成功！");
        }