为什么我按88会提示再见当结束不了程序

Question

        {
            机器人 p1 = new 机器人();
            p1.Nane="小I";
            p1.Eat(5);
            机器人 p2 = new 机器人();
            p2.Nane = "小J";
            p2.Eat(3);
            Console.WriteLine("请选择机器人：1或2,1是小I，2是小J");
            string st3 = Console.ReadLine();
            if (st3 == "1")
            {
                p1 = p2;
            }
            else
            {
                p2 = p1;
            }
            p1.SayHello();
            while(true)
            {
               string st1=Console.ReadLine();
               p1.Speak(st1);
            }
        }
    }
    class 机器人
    {
        public string Nane { get; set; }
        private int FullLevel { get; set; }
        public void SayHello()
        {
            Console.WriteLine("我叫{0}",Nane);
        }
        public void Eat(int foodConunt)
        {
            if(FullLevel>100)
            {
                return;
            }
            FullLevel = FullLevel + foodConunt;
        }
        public void Speak(string st)
        {
            if(FullLevel<=0)
            {
                Console.WriteLine("额死了 不聊了");
                string srt1 = Console.ReadLine();
                int food = Convert.ToInt32(srt1);
                if(food<=0)
                {
                    Console.WriteLine("兄弟你玩我的吧");
                    return;
                }
            }
            if (st == "你好~~~")
            {
                Console.WriteLine("我今天心情不是很好别来烦我");
            }
            else if (st == "88")
            {
                Console.WriteLine("再见");
                return;
            }
            else
            {
                Console.WriteLine("你说什么，我听不懂");
            }
            FullLevel--;
        }
还有这段代码                if(food<=0)
                {
                    Console.WriteLine("兄弟你玩我的吧");
                    return;
                }
也结束不了 要怎么才能实现？？？

Answer 1

你Speak函数虽然return了，但是你while循环没结束，当然退步了程序了
把你Speak函数改造一下就可以了 static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            机器人 p1 = new 机器人();
            p1.Nane = "小I";
            p1.Eat(5);
            机器人 p2 = new 机器人();
            p2.Nane = "小J";
            p2.Eat(3);
            Console.WriteLine("请选择机器人：1或2,1是小I，2是小J");
            string st3 = Console.ReadLine();
            if (st3 == "1")
            {
                p1 = p2;
            }
            else
            {
                p2 = p1;
            }
            p1.SayHello();
            while (true)
            {
                string st1 = Console.ReadLine();
                if (p1.Speak(st1) == true)  //Speak函数返回true了，结束程序
                    break;
            }
        }
    }
    class 机器人
    {
        public string Nane { get; set; }
        private int FullLevel { get; set; }
        public void SayHello()
        {
            Console.WriteLine("我叫{0}", Nane);
        }
        public void Eat(int foodConunt)
        {
            if (FullLevel > 100)
            {
                return;
            }
            FullLevel = FullLevel + foodConunt;
        }
        public bool Speak(string st)
        {
            if (FullLevel <= 0)
            {
                Console.WriteLine("额死了 不聊了");
                string srt1 = Console.ReadLine();
                int food = Convert.ToInt32(srt1);
                if (food <= 0)
                {
                    Console.WriteLine("兄弟你玩我的吧");
                    return true;
                }
            }
            if (st == "你好~~~")
            {
                Console.WriteLine("我今天心情不是很好别来烦我");
            }
            else if (st == "88")
            {
                Console.WriteLine("再见");
                return true;  //通知while，结束
            }
            else
            {
                Console.WriteLine("你说什么，我听不懂");
            }
            FullLevel--;
            return false;
        }    }

Answer 2

            机器人 p1 = new 机器人();
            p1.Nane="小I";
            p1.Eat(5);
            机器人 p2 = new 机器人();
            p2.Nane = "小J";
            p2.Eat(3);
            Console.WriteLine("请选择机器人：1或2,1是小I，2是小J");
            string st3 = Console.ReadLine();
            if (st3 == "1")
            {
                p1 = p2;
            }
            else
            {
                p2 = p1;
            }
            p1.SayHello();
            while(true)
            {
               string st1=Console.ReadLine();
               if (p1.Speak(st1) == true)  //Speak函数返回true了，结束程序
                   break;
            }
        }
    }
    class 机器人
    {
        public string Nane { get; set; }
        private int FullLevel { get; set; }
        public void SayHello()
        {
            Console.WriteLine("我叫{0}",Nane);
        }
        public void Eat(int foodConunt)
        {
            if(FullLevel>100)
            {
                return;
            }
            FullLevel = FullLevel + foodConunt;
        }
        public void Speak(string st)
        {
            if(FullLevel<=0)
            {
                Console.WriteLine("额死了 不聊了");
                string srt1 = Console.ReadLine();
                int food = Convert.ToInt32(srt1);
                if(food<=0)
                {
                    Console.WriteLine("兄弟你玩我的吧");
                    return true;                }
            }
            if (st == "你好~~~")
            {
                Console.WriteLine("我今天心情不是很好别来烦我");
            }
            else if (st == "88")
            {
                Console.WriteLine("再见");
                return true;
            }
            else
            {
                Console.WriteLine("你说什么，我听不懂");
            }
            FullLevel--;
            return false;
为什么我修改后提示
错误 1 运算符“==”无法应用于“void”和“bool”类型的操作数
错误 2 由于“机器人2.机器人.Speak(string)”返回 void，返回关键字后面不得有对象表达式

Answer 3

 把public void SayHello()
改成
 public bool SayHello()把return;
改成 return true;

Answer 4

晕了晕了
上面看错了
是把 public void Speak(string st)
改成
 public bool Speak(string st)

Answer 5

请问
为什么要改成bool呢  麻烦你解释一下

Answer 6

bool类型的函数才能返回true或false，从而告诉调用的while循环是不是该退出