Pizza.cs

    internal class 使用非同步製作Pizza: 使用同步製作Pizza
    {
        private static int Pizza總數 = 0;
        private static object tsLock = new object();

        internal void 開始()
        {
            var watch = Stopwatch.StartNew();
            Console.WriteLine("開始進行製作披薩...");

            // 製作10個披薩 120 時間
            List<Task> Tasks = new List<Task>();
            for (int i = 0; i < 10; i++)
            {
                Task a = Task.Run(async () =>
                {
                    製作一個披薩();
                });
                Tasks.Add(a);


            }
            Task.WaitAll(Tasks.ToArray());

            watch.Stop();
            Console.WriteLine($"\n\nPizza總數:{Pizza總數}\n共花費:{watch.Elapsed.TotalMilliseconds.ToString("0")} 時間。");
        }

        private static void 製作一個披薩()
        {
            //揉麵團();
            揉麵團Async();

            //發酵();
            發酵Async();

            桿面皮();
            放上佐料();

            //烤披薩();
            烤披薩Async();

            lock (tsLock)
            {
                Pizza總數++;
            }
        }

        static async void 揉麵團Async()
        {
            await Task.Run(() =>
            {
                string status = "揉麵團中...";
                Thread.Sleep(30);
                status = "揉麵團 完成";
            });
        }
        static async void 發酵Async()
        {
            await Task.Run(() =>
            {
                string status = "發酵中...";
                Thread.Sleep(40);
                status = "發酵 完成";
            });
        }
        static async void 桿面皮Async()
        {
            await Task.Run(() =>
            {
                string status = "桿面皮中...";
                Thread.Sleep(2);
                status = "桿面皮 完成";
            });
        }
        static async void 烤披薩Async()
        {
            await Task.Run(() =>
            {
                string status = "烤披薩中...";
                Thread.Sleep(20);
                status = "烤披薩 完成";
            });
        }
    }