using System;

using System.Threading.Tasks;

​

namespace AsyncBreakfast

{

    class Program

    {

        static void Main(string[] args)

        {

            Coffee cup = PourCoffee();

            Console.WriteLine("1.咖啡准备完毕");

​

            Egg eggs = FryEggs(2);

            Console.WriteLine("2.鸡蛋准备完毕");

​

            Bacon bacon = FryBacon(3);

            Console.WriteLine("3.培根准备完毕");

​

            Toast toast = ToastBread(2);

            ApplyButter(toast);

            ApplyJam(toast);

            Console.WriteLine("4.面包准备完毕");

​

            Juice oj = PourOJ();

            Console.WriteLine("5.橙汁准备完毕");

            Console.WriteLine(">_< 早餐准备完毕！");

        }

​

        private static Juice PourOJ()

        {

            Console.WriteLine("倒橙汁");

            return new Juice();

        }

​

        private static void ApplyJam(Toast toast) => 

            Console.WriteLine("给面包刷果酱");

​

        private static void ApplyButter(Toast toast) => 

            Console.WriteLine("给面包加黄油");

​

        private static Toast ToastBread(int slices)

        {

            for (int slice = 0; slice < slices; slice++)

            {

                Console.WriteLine("将一片面包放到烤面包机");

            }

            Console.WriteLine("开始烤面包");

            Task.Delay(3000).Wait();

            Console.WriteLine("烤面包");

​

            return new Toast();

        }

​

        private static Bacon FryBacon(int slices)

        {

            Console.WriteLine($"将 {slices} 片培根放到煎锅");

            Console.WriteLine("煎培根第一面");

            Task.Delay(3000).Wait();

            for (int slice = 0; slice < slices; slice++)

            {

                Console.WriteLine("给培根翻面");

            }

            Console.WriteLine("煎培根第二面");

            Task.Delay(3000).Wait();

            Console.WriteLine("将培根放到盘子");

​

            return new Bacon();

        }

​

        private static Egg FryEggs(int howMany)

        {

            Console.WriteLine("加热煎蛋锅");

            Task.Delay(3000).Wait();

            Console.WriteLine($"打碎 {howMany} 个蛋");

            Console.WriteLine("煎蛋中 ...");

            Task.Delay(3000).Wait();

            Console.WriteLine("将煎蛋放到盘子");

​

            return new Egg();

        }

​

        private static Coffee PourCoffee()

        {

            Console.WriteLine("冲咖啡");

            return new Coffee();

        }

    }

    public class Coffee{

    }

        public class Egg{

    }

        public class Bacon{

    }

        public class Toast {

    }

        public class Juice {

    }

}