namespace MyTest_MultiThread
{
    class Program
    {
        static void Main(string[] args)
        {
            Student stu1 = new Student() { ID = 1, PenColor = ConsoleColor.Yellow };
            Student stu2 = new Student() { ID = 2, PenColor = ConsoleColor.Green };
            Student stu3 = new Student() { ID = 3, PenColor = ConsoleColor.Red };


            /*
            //(同步调用：你做完了，我开始做，单线程）
            Action action1 = new Action(stu1.DoHomeWork);
            Action action2 = new Action(stu2.DoHomeWork);
            Action action3 = new Action(stu3.DoHomeWork);

            action1 += action2;
            action1 += action3;
            action1.Invoke();  //多波委托
            */


            /*
            //(异步调用：我们一起开始做，多线程）
            Action action1 = new Action(stu1.DoHomeWork);
            Action action2 = new Action(stu2.DoHomeWork);
            Action action3 = new Action(stu3.DoHomeWork);

            action1.BeginInvoke(null,null);
            action2.BeginInvoke(null, null);
            action3.BeginInvoke(null, null);
            */


            /*
            //异步调用：Thread
            Thread thread1 = new Thread(new ThreadStart(stu1.DoHomeWork));
            Thread thread2 = new Thread(new ThreadStart(stu2.DoHomeWork)); 
            Thread thread3 = new Thread(new ThreadStart(stu3.DoHomeWork));

            thread1.Start();
            thread2.Start();
            thread3.Start();
            */


            Task task1 = new Task(new Action(stu1.DoHomeWork));
            Task task2 = new Task(new Action(stu2.DoHomeWork));
            Task task3 = new Task(new Action(stu3.DoHomeWork));

            task1.Start();
            task2.Start();
            task3.Start();


            for (int i = 0; i < 10; i++)
            {
                Console.ForegroundColor = ConsoleColor.Cyan;
                Console.WriteLine("Main thread {0}",i);
                Thread.Sleep(1000);
            }


        }
    }

    class Student
    {
        public int ID { get; set; }
        public ConsoleColor PenColor { get; set; }
        public void DoHomeWork()
        {
            for (int i = 0; i < 5; i++)
            {
                Console.ForegroundColor = this.PenColor;
                Console.WriteLine("Student {0} doing homework {1} hour(s).", this.ID, i);
                Thread.Sleep(1000);
            }
        }
    }

}