如何添加获取/设置访问器

创建一个 C# 控制台应用程序，该应用程序使用重载方法来计算 2、3 或 4 个整数的平均值。 首先创建一个类平均值。 在此类中编写一个方法 play 以执行以下操作：

（1）生成一个随机整数，以决定是否计算2、3或4个整数的平均值。（2） 生成 2、3 或 4 个随机整数。这些随机整数必须在 1 到 1000 的范围内。（3） 调用方法的三个版本之一 CalcAverage 来计算随机整数的平均值。（4） 在控制台窗口中显示随机整数及其平均值。

Average类应该有三个版本的CalcAverage方法，分别将两个、三个和四个整数作为参数。创建一个平均测试类。 在 Main 方法中，创建 Average 的实例，然后调用其 Play 方法。

以及我到目前为止所拥有的：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace lab09_ex03
{
    public class Average
    {
        public int play();
        {
            Random randomNumbers = new Random();
            int numIntegers = randomNumbers.Next(2, 5);
            Console.WriteLine("For this round the program will display the average of'n {0} randomly generated integers", numIntegers);
            if (numIntegers == 2)
                {
                    int integer01 = randomNumbers.Next(1, 1001);
                    int integer02 = randomNumbers.Next(1, 1001);
                    return integer01, integer02;
                }
                if (numIntegers == 3)
                    {
                        int integer01 = randomNumbers.Next(1, 1001);
                        int integer02 = randomNumbers.Next(1, 1001);
                        int integer03 = randomNumbers.Next(1, 1001);
                        return integer01, integer02, integer03;
                    }
                else
                    {
                        int integer01 = randomNumbers.Next(1, 1001);
                        int integer02 = randomNumbers.Next(1, 1001);
                        int integer03 = randomNumbers.Next(1, 1001);
                        int integer04 = randomNumbers.Next(1, 1001);
                        return integer01, integer02, integer03, integer04;
                    }
        }
        public int CalcAverage(int integer01, int integer02)
        {
            int average01 = (integer01 + integer02)/2;
            Console.WriteLine("The average of {0} and {1} is {2}", integer01, integer02, average01);
        }
        public int CalcAverage(int integer01, int integer02, int integer03)
        {
            int average02 = (integer01 + integer02 + integer03)/3;
            Console.WriteLine("The average of {0} and {1} and {2} is {3}", integer01, integer02, integer03, average02);
        }
        public int CalcAverage(int integer01, int integer02, int integer03, int integer04)
        {
            int average03 = (integer01 + integer02 + integer03 + integer04)/4;
            Console.WriteLine("The average of {0} and {1} and {2} and {3} is {4}", integer01, integer02, integer03, integer04, average03);
        }
        static void Main(string[] args)
        {
            Play p = new Play();
            int integer01;
            int integer02;
            int integer03;
            int integer04;
            Console.WriteLine(p.Play());
            Console.WriteLine(p.CalcAverage(integer01, integer02));
            Console.WriteLine(p.CalcAverage(integer01, integer02, integer03));
            Console.WriteLine(p.CalcAverage(integer01, integer02, integer03, integer04));
        }
    }
}

private int myPrivateValue = 0;
public int myPublicValue
{
    get
    {
        return myPrivateValue;
    }
    set
    {
        myPrivateValue = value;
    }
}