Unity C basic review 28 - delegation with return (p449)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

    class Master
    {
        int physical;

        public Master(int physical)
        {
            this.Physical = physical;
        }

        public int Physical { get => physical; set => physical = value; }
    }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

    delegate void AutoTask(Master m);
    class Program
    {
        static void Main(string[] args)
        {
        Master m = new Master(5);
        AutoTask at = Task01;
        at += Task02;
        at += Task03;

        at(m);
        }
    public static void Task01(Master m)
    {
        if (m.Physical >= 5)
        {
            m.Physical -= 5;
        }
        else
        {
            return;
        }
        Console.WriteLine(" Once the task is started ！");
        Console.WriteLine(" As soon as the task is completed ！");
    }
    public static void Task02(Master m)
    {
        if (m.Physical >= 5)
        {
            m.Physical -= 5;
        }
        else
        {
            return;
        }
        Console.WriteLine(" Task 2 starts ！");
        Console.WriteLine(" Task two complete ！");
    }
    public static void Task03(Master m)
    {
        if (m.Physical >= 5)
        {
            m.Physical -= 5;
        }
        else
        {
            return;
        }
        Console.WriteLine(" Task 3 starts ！");
        Console.WriteLine(" Task three is done ！");
    }
}
    

  Pass in a parameter m For sharing .